Pitching register -- 2019 American League
Regular season -- as of 11/2/2019
| Primary |
| Name | Team | P | Age | ERA | W | L | S | G | GS | CG | SHO | INN | H | R | ER | BB | K | HR | GDP |
| Matt Albers | Det | mr | 36 | 3.52 | 0 | 0 | 0 | 5 | 0 | 0 | 0 | 7.2 | 7 | 3 | 3 | 3 | 5 | 2 | 2 |
| Scott Alexander* | Tex | mr | 29 | 4.13 | 4 | 5 | 8 | 55 | 0 | 0 | 0 | 69.2 | 69 | 34 | 32 | 18 | 58 | 9 | 15 |
| Cody Allen | LAA | cl | 30 | 3.88 | 2 | 3 | 4 | 56 | 0 | 0 | 0 | 72.0 | 54 | 31 | 31 | 35 | 86 | 14 | 2 |
| Dan Altavilla | Cle | mr | 26 | 4.15 | 0 | 0 | 1 | 15 | 0 | 0 | 0 | 21.2 | 12 | 10 | 10 | 13 | 20 | 3 | 1 |
| Jose Alvarez* | LAA | mr | 30 | 2.84 | 0 | 2 | 4 | 17 | 0 | 0 | 0 | 19.0 | 18 | 7 | 6 | 7 | 13 | 0 | 3 |
| Brett Anderson* | Tor | sp | 31 | 4.83 | 5 | 6 | 0 | 21 | 20 | 0 | 0 | 98.2 | 114 | 62 | 53 | 19 | 57 | 10 | 13 |
| Chase Anderson | Det | sp | 31 | 4.64 | 6 | 16 | 0 | 30 | 30 | 0 | 0 | 178.1 | 162 | 102 | 92 | 67 | 140 | 41 | 15 |
| Tanner Anderson | Cle | mr | 26 | 22.50 | 0 | 0 | 0 | 6 | 0 | 0 | 0 | 4.0 | 12 | 11 | 10 | 2 | 3 | 1 | 0 |
| Victor Arano | LAA | mr | 24 | 1.81 | 3 | 1 | 1 | 36 | 0 | 0 | 0 | 49.2 | 29 | 10 | 10 | 18 | 42 | 0 | 7 |
| Pedro Araujo | Tex | mr | 25 | 2.08 | 0 | 0 | 2 | 5 | 0 | 0 | 0 | 4.1 | 6 | 4 | 1 | 3 | 5 | 1 | 1 |
| Chris Archer | LAA | sp | 30 | 5.42 | 9 | 11 | 0 | 30 | 30 | 0 | 0 | 157.2 | 174 | 104 | 95 | 50 | 171 | 22 | 13 |
| Shawn Armstrong | NYY | mr | 28 | 0.63 | 0 | 0 | 0 | 9 | 0 | 0 | 0 | 14.1 | 10 | 1 | 1 | 2 | 12 | 1 | 2 |
| John Axford | ChW | mr | 36 | 2.20 | 1 | 1 | 2 | 52 | 0 | 0 | 0 | 65.1 | 45 | 18 | 16 | 24 | 68 | 3 | 8 |
| Pedro Baez | Sea | mr | 31 | 2.86 | 3 | 4 | 5 | 54 | 0 | 0 | 0 | 56.2 | 52 | 19 | 18 | 26 | 59 | 4 | 3 |
| Sandy Baez | ChW | mr | 25 | 3.75 | 0 | 0 | 1 | 8 | 0 | 0 | 0 | 12.0 | 10 | 5 | 5 | 7 | 9 | 3 | 1 |
| Homer Bailey | KCR | sp | 33 | 6.65 | 5 | 7 | 0 | 16 | 16 | 1 | 0 | 90.2 | 123 | 73 | 67 | 27 | 60 | 17 | 9 |
| Danny Barnes | Tex | mr | 29 | 7.57 | 1 | 1 | 0 | 24 | 0 | 0 | 0 | 27.1 | 36 | 28 | 23 | 13 | 25 | 8 | 1 |
| Jacob Barnes | Tex | mr | 29 | 3.91 | 2 | 2 | 6 | 44 | 0 | 0 | 0 | 50.2 | 56 | 25 | 22 | 18 | 41 | 7 | 6 |
| Kyle Barraclough | Cle | mr | 29 | 7.90 | 3 | 1 | 0 | 27 | 0 | 0 | 0 | 27.1 | 23 | 24 | 24 | 15 | 31 | 7 | 2 |
| Anthony Bass | Oak | mr | 31 | 1.98 | 0 | 0 | 0 | 8 | 0 | 0 | 0 | 13.2 | 18 | 3 | 3 | 2 | 8 | 2 | 5 |
| Chris Bassitt | ChW | sp | 30 | 6.46 | 2 | 7 | 0 | 11 | 11 | 0 | 0 | 61.1 | 77 | 46 | 44 | 32 | 54 | 12 | 0 |
| Trevor Bauer | Min | sp | 28 | 2.38 | 16 | 5 | 0 | 29 | 29 | 6 | 3 | 216.0 | 132 | 58 | 57 | 75 | 273 | 12 | 9 |
| Tyler Beede | NYY | sp | 26 | 7.83 | 0 | 3 | 0 | 6 | 6 | 0 | 0 | 23.0 | 31 | 23 | 20 | 15 | 21 | 3 | 1 |
| Jalen Beeks* | Mtl | mr | 25 | 5.70 | 1 | 3 | 1 | 38 | 0 | 0 | 0 | 53.2 | 51 | 35 | 34 | 28 | 54 | 9 | 6 |
| Dellin Betances | Sea | mr | 31 | 2.52 | 4 | 5 | 34 | 64 | 0 | 0 | 0 | 71.1 | 43 | 22 | 20 | 25 | 124 | 6 | 0 |
| Chad Bettis | Bos | sp | 30 | 5.47 | 5 | 14 | 0 | 27 | 26 | 1 | 1 | 151.1 | 161 | 97 | 92 | 63 | 81 | 24 | 17 |
| Jesse Biddle* | KCR | mr | 27 | 3.25 | 4 | 2 | 1 | 33 | 0 | 0 | 0 | 44.1 | 39 | 17 | 16 | 18 | 54 | 6 | 9 |
| Ty Blach* | Bal | mr | 28 | 3.76 | 11 | 6 | 0 | 24 | 24 | 1 | 0 | 141.1 | 159 | 68 | 59 | 37 | 82 | 12 | 24 |
| Ray Black | Det | mr | 29 | 6.05 | 0 | 1 | 0 | 17 | 0 | 0 | 0 | 19.1 | 15 | 16 | 13 | 8 | 32 | 6 | 1 |
| Paul Blackburn | LAA | sp | 25 | 3.56 | 2 | 4 | 0 | 7 | 7 | 0 | 0 | 48.0 | 44 | 22 | 19 | 10 | 36 | 2 | 7 |
| Richard Bleier* | Bal | mr | 32 | 3.00 | 1 | 2 | 1 | 28 | 0 | 0 | 0 | 30.0 | 34 | 12 | 10 | 1 | 13 | 1 | 7 |
| Jerry Blevins* | Mtl | mr | 35 | 4.32 | 0 | 3 | 1 | 15 | 0 | 0 | 0 | 16.2 | 11 | 8 | 8 | 9 | 22 | 4 | 1 |
| Ryan Borucki* | Sea | sp | 25 | 3.66 | 5 | 1 | 0 | 11 | 11 | 0 | 0 | 64.0 | 66 | 28 | 26 | 25 | 39 | 5 | 6 |
| Matt Bowman | Mtl | mr | 28 | 3.38 | 0 | 0 | 0 | 13 | 0 | 0 | 0 | 24.0 | 27 | 9 | 9 | 7 | 30 | 2 | 3 |
| Chasen Bradford | Bos | mr | 29 | 5.68 | 3 | 3 | 2 | 48 | 0 | 0 | 0 | 69.2 | 80 | 46 | 44 | 14 | 54 | 13 | 1 |
| Archie Bradley | Bal | mr | 26 | 2.67 | 8 | 7 | 11 | 59 | 0 | 0 | 0 | 81.0 | 65 | 25 | 24 | 22 | 76 | 9 | 6 |
| John Brebbia |   | mr | 29 | 2.54 | 4 | 3 | 1 | 40 | 0 | 0 | 0 | 60.1 | 40 | 18 | 17 | 16 | 64 | 5 | 4 |
| Parker Bridwell | Bos | mr | 27 | 23.82 | 0 | 1 | 0 | 6 | 0 | 0 | 0 | 5.2 | 20 | 16 | 15 | 4 | 1 | 5 | 2 |
| Zach Britton* | Tex | mr | 31 | 4.60 | 1 | 4 | 4 | 39 | 0 | 0 | 0 | 47.0 | 34 | 25 | 24 | 32 | 44 | 6 | 5 |
| Clay Buchholz |   | sp | 34 | 3.61 | 8 | 7 | 0 | 21 | 21 | 3 | 1 | 142.0 | 134 | 62 | 57 | 29 | 112 | 16 | 20 |
| Ryan Buchter* | Mtl | mr | 32 | 3.00 | 1 | 1 | 2 | 31 | 0 | 0 | 0 | 39.0 | 31 | 14 | 13 | 19 | 36 | 2 | 1 |
| Madison Bumgarner* | Mtl | sp | 29 | 4.53 | 8 | 12 | 0 | 25 | 25 | 7 | 3 | 177.0 | 166 | 91 | 89 | 53 | 140 | 17 | 7 |
| Aaron Bummer* | Sea | mr | 25 | 5.56 | 2 | 4 | 1 | 41 | 0 | 0 | 0 | 34.0 | 50 | 23 | 21 | 20 | 37 | 0 | 4 |
| Dylan Bundy | NYY | sp | 26 | 5.42 | 10 | 13 | 0 | 31 | 31 | 1 | 0 | 182.2 | 188 | 124 | 110 | 45 | 200 | 52 | 11 |
| Corbin Burnes | Was | mr | 24 | 4.14 | 3 | 2 | 11 | 41 | 0 | 0 | 0 | 45.2 | 36 | 22 | 21 | 9 | 43 | 8 | 5 |
| Eddie Butler | Min | mr | 28 | 4.46 | 0 | 0 | 1 | 17 | 0 | 0 | 0 | 38.1 | 41 | 20 | 19 | 11 | 17 | 8 | 1 |
| Ty Buttrey | Tor | mr | 26 | 4.67 | 2 | 0 | 2 | 13 | 0 | 0 | 0 | 17.1 | 23 | 10 | 9 | 6 | 20 | 0 | 3 |
| Trevor Cahill | Tex | sp | 31 | 5.00 | 4 | 11 | 0 | 24 | 24 | 0 | 0 | 135.0 | 138 | 79 | 75 | 68 | 134 | 16 | 15 |
| Santiago Casilla | ChW | mr | 38 | 3.82 | 1 | 3 | 6 | 32 | 0 | 0 | 0 | 37.2 | 24 | 18 | 16 | 23 | 23 | 0 | 3 |
| Jose Castillo* | Tex | mr | 23 | 1.50 | 1 | 2 | 2 | 31 | 0 | 0 | 0 | 42.0 | 18 | 7 | 7 | 11 | 57 | 3 | 1 |
| Jhoulys Chacin | Cle | sp | 31 | 4.43 | 12 | 14 | 0 | 35 | 35 | 0 | 0 | 199.0 | 190 | 109 | 98 | 101 | 155 | 25 | 18 |
| Tyler Chatwood | Det | sp | 29 | 5.40 | 4 | 10 | 0 | 41 | 11 | 0 | 0 | 108.1 | 94 | 69 | 65 | 105 | 80 | 12 | 22 |
| Jesse Chavez | Was | mr | 35 | 3.86 | 9 | 8 | 2 | 66 | 0 | 0 | 0 | 114.1 | 90 | 51 | 49 | 22 | 105 | 22 | 13 |
| Wei-Yin Chen* | Det | sp | 33 | 4.76 | 7 | 11 | 0 | 30 | 30 | 0 | 0 | 157.0 | 162 | 86 | 83 | 66 | 131 | 26 | 10 |
| Tony Cingrani* | Oak | mr | 29 | 4.12 | 0 | 2 | 1 | 16 | 0 | 0 | 0 | 19.2 | 17 | 9 | 9 | 5 | 28 | 2 | 1 |
| Tyler Clippard | Sea | mr | 34 | 4.46 | 10 | 7 | 1 | 67 | 0 | 0 | 0 | 74.2 | 60 | 39 | 37 | 26 | 97 | 14 | 4 |
| A.J. Cole | LAA | mr | 27 | 6.54 | 1 | 2 | 0 | 8 | 5 | 0 | 0 | 31.2 | 37 | 24 | 23 | 11 | 36 | 10 | 1 |
| Gerrit Cole | Oak | sp | 28 | 3.53 | 17 | 6 | 0 | 32 | 32 | 2 | 1 | 206.1 | 183 | 85 | 81 | 82 | 270 | 20 | 20 |
| Louis Coleman | Was | mr | 33 | 2.05 | 5 | 2 | 1 | 43 | 0 | 0 | 0 | 61.1 | 39 | 14 | 14 | 23 | 51 | 3 | 14 |
| Bartolo Colon | Mtl | sp | 46 | 6.30 | 1 | 5 | 3 | 28 | 6 | 0 | 0 | 64.1 | 81 | 46 | 45 | 8 | 34 | 19 | 3 |
| Adam Conley* | Bos | mr | 29 | 4.44 | 2 | 1 | 0 | 36 | 0 | 0 | 0 | 46.2 | 49 | 24 | 23 | 19 | 50 | 4 | 6 |
| Dylan Covey | Mtl | sp | 27 | 4.32 | 6 | 6 | 0 | 16 | 16 | 1 | 0 | 89.2 | 80 | 52 | 43 | 40 | 67 | 11 | 13 |
| Zach Davies | KCR | sp | 26 | 3.29 | 9 | 5 | 0 | 17 | 17 | 3 | 1 | 109.1 | 103 | 42 | 40 | 25 | 74 | 15 | 14 |
| Austin Davis* | KCR | mr | 26 | 3.38 | 2 | 0 | 0 | 7 | 0 | 0 | 0 | 10.2 | 8 | 4 | 4 | 5 | 10 | 1 | 1 |
| Jorge de la Rosa* | Bal | mr | 38 | 2.73 | 3 | 1 | 1 | 38 | 0 | 0 | 0 | 52.2 | 39 | 18 | 16 | 25 | 47 | 3 | 7 |
| Enyel De Los Santos | Det | mr | 23 | 6.84 | 0 | 3 | 0 | 5 | 5 | 0 | 0 | 25.0 | 29 | 24 | 19 | 12 | 21 | 3 | 2 |
| Chris Devenski | NYY | mr | 28 | 4.50 | 0 | 1 | 0 | 4 | 0 | 0 | 0 | 6.0 | 9 | 3 | 3 | 2 | 7 | 1 | 0 |
| Edwin Diaz | Oak | cl | 25 | 1.31 | 4 | 3 | 44 | 66 | 0 | 0 | 0 | 82.1 | 42 | 13 | 12 | 31 | 120 | 5 | 1 |
| Zach Eflin | Was | sp | 25 | 3.83 | 10 | 8 | 0 | 28 | 28 | 2 | 1 | 178.2 | 185 | 79 | 76 | 41 | 176 | 15 | 10 |
| Roenis Elias* | ChW | mr | 30 | 4.11 | 5 | 4 | 0 | 14 | 10 | 0 | 0 | 61.1 | 61 | 29 | 28 | 30 | 45 | 4 | 9 |
| Nathan Eovaldi | Det | sp | 29 | 4.27 | 7 | 9 | 0 | 25 | 25 | 0 | 0 | 151.2 | 153 | 77 | 72 | 34 | 118 | 24 | 15 |
| Robbie Erlin* | Tor | mr | 28 | 3.69 | 7 | 4 | 2 | 20 | 15 | 0 | 0 | 100.0 | 109 | 47 | 41 | 16 | 85 | 16 | 7 |
| Marco Estrada | Mtl | sp | 35 | 5.34 | 4 | 11 | 0 | 28 | 28 | 0 | 0 | 143.1 | 153 | 95 | 85 | 39 | 106 | 35 | 4 |
| Jeurys Familia | Tor | cl | 29 | 5.10 | 3 | 7 | 9 | 65 | 0 | 0 | 0 | 72.1 | 87 | 41 | 41 | 28 | 76 | 8 | 3 |
| Erick Fedde | Min | sp | 26 | 4.21 | 2 | 2 | 0 | 7 | 7 | 0 | 0 | 36.1 | 40 | 18 | 17 | 9 | 35 | 7 | 4 |
| Heath Fillmyer | ChW | sp | 25 | 1.00 | 1 | 0 | 0 | 7 | 0 | 0 | 0 | 9.0 | 5 | 1 | 1 | 1 | 4 | 1 | 2 |
| Brandon Finnegan* | NYY | sp | 26 | 8.44 | 0 | 1 | 0 | 3 | 3 | 0 | 0 | 5.1 | 7 | 5 | 5 | 4 | 4 | 3 | 1 |
| Jack Flaherty | NYY | sp | 23 | 3.08 | 10 | 8 | 0 | 30 | 30 | 1 | 0 | 190.0 | 133 | 70 | 65 | 69 | 224 | 29 | 20 |
| Brian Flynn* | Tex | mr | 29 | 6.09 | 1 | 4 | 0 | 47 | 0 | 0 | 0 | 78.1 | 116 | 59 | 53 | 41 | 44 | 9 | 23 |
| Mike Foltynewicz | Bal | sp | 27 | 1.85 | 15 | 5 | 0 | 31 | 31 | 2 | 1 | 214.0 | 147 | 49 | 44 | 55 | 228 | 9 | 13 |
| Sam Freeman* | Oak | mr | 32 | 2.80 | 4 | 3 | 1 | 33 | 0 | 0 | 0 | 45.0 | 31 | 18 | 14 | 28 | 49 | 4 | 3 |
| Max Fried* | KCR | mr | 25 | 1.64 | 0 | 0 | 12 | 22 | 0 | 0 | 0 | 22.0 | 16 | 4 | 4 | 12 | 35 | 3 | 2 |
| Carson Fulmer | NYY | sp | 25 | 9.00 | 0 | 5 | 0 | 6 | 6 | 0 | 0 | 25.0 | 28 | 27 | 25 | 16 | 19 | 8 | 2 |
| Michael Fulmer | Det | sp | 26 | 3.46 | 13 | 8 | 0 | 28 | 28 | 3 | 3 | 179.1 | 155 | 72 | 69 | 56 | 153 | 17 | 21 |
| Yovani Gallardo | Bos | sp | 33 | 5.63 | 4 | 7 | 0 | 16 | 16 | 0 | 0 | 86.1 | 104 | 63 | 54 | 38 | 54 | 13 | 21 |
| John Gant | KCR | sp | 26 | 2.56 | 11 | 4 | 0 | 23 | 23 | 0 | 0 | 144.1 | 106 | 44 | 41 | 53 | 110 | 8 | 7 |
| Jaime Garcia* | Tex | mr | 32 | 8.24 | 2 | 14 | 0 | 20 | 20 | 0 | 0 | 90.2 | 104 | 86 | 83 | 54 | 81 | 22 | 9 |
| Jarlin Garcia* | Was | mr | 26 | 3.25 | 5 | 2 | 1 | 8 | 6 | 0 | 0 | 44.1 | 29 | 16 | 16 | 13 | 35 | 11 | 6 |
| Yimi Garcia | Det | mr | 28 | 9.64 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 4.2 | 8 | 5 | 5 | 0 | 5 | 3 | 0 |
| Sam Gaviglio | KCR | sp | 29 | 3.58 | 8 | 10 | 0 | 27 | 27 | 0 | 0 | 171.0 | 160 | 80 | 68 | 46 | 150 | 22 | 5 |
| Domingo German | Cle | sp | 26 | 6.16 | 4 | 9 | 0 | 25 | 19 | 0 | 0 | 102.1 | 122 | 74 | 70 | 37 | 93 | 22 | 2 |
| Sean Gilmartin* | Was | mr | 29 | 2.15 | 0 | 1 | 0 | 34 | 0 | 0 | 0 | 29.1 | 13 | 9 | 7 | 13 | 25 | 4 | 1 |
| Lucas Giolito | ChW | sp | 24 | 5.82 | 6 | 12 | 0 | 31 | 31 | 1 | 0 | 173.1 | 177 | 123 | 112 | 93 | 131 | 31 | 14 |
| Zack Godley | NYY | sp | 29 | 6.04 | 7 | 15 | 0 | 32 | 32 | 0 | 0 | 178.2 | 205 | 129 | 120 | 94 | 181 | 20 | 10 |
| Luiz Gohara* |   | mr | 22 | 5.23 | 1 | 3 | 0 | 17 | 0 | 0 | 0 | 32.2 | 37 | 21 | 19 | 12 | 21 | 4 | 2 |
| Marco Gonzales* | Sea | sp | 27 | 3.90 | 8 | 13 | 0 | 30 | 30 | 2 | 0 | 191.2 | 200 | 89 | 83 | 48 | 153 | 21 | 31 |
| Gio Gonzalez* | LAA | sp | 33 | 5.70 | 8 | 13 | 0 | 32 | 32 | 0 | 0 | 178.1 | 189 | 117 | 113 | 87 | 156 | 27 | 13 |
| Sonny Gray | KCR | sp | 29 | 3.64 | 9 | 5 | 0 | 26 | 26 | 0 | 0 | 146.0 | 130 | 62 | 59 | 47 | 123 | 9 | 5 |
| Chad Green | NYY | mr | 28 | 2.73 | 7 | 2 | 3 | 45 | 0 | 0 | 0 | 89.0 | 74 | 29 | 27 | 15 | 109 | 11 | 3 |
| Shane Greene | LAA | cl | 30 | 6.44 | 0 | 4 | 2 | 50 | 0 | 0 | 0 | 58.2 | 79 | 45 | 42 | 24 | 65 | 21 | 7 |
| Robert Gsellman | Cle | mr | 25 | 4.52 | 4 | 4 | 0 | 53 | 0 | 0 | 0 | 69.2 | 81 | 40 | 35 | 15 | 59 | 11 | 3 |
| Junior Guerra | Oak | sp | 34 | 5.69 | 6 | 11 | 0 | 30 | 30 | 0 | 0 | 142.1 | 161 | 92 | 90 | 63 | 141 | 19 | 11 |
| Josh Hader* | NYY | mr | 25 | 2.43 | 4 | 6 | 4 | 56 | 0 | 0 | 0 | 96.1 | 49 | 31 | 26 | 39 | 180 | 15 | 2 |
| Brad Hand* | Oak | cl | 29 | 2.83 | 7 | 6 | 4 | 59 | 0 | 0 | 0 | 82.2 | 60 | 29 | 26 | 23 | 120 | 9 | 9 |
| J.A. Happ* | Sea | sp | 36 | 4.44 | 13 | 7 | 0 | 31 | 31 | 0 | 0 | 186.1 | 159 | 97 | 92 | 55 | 205 | 37 | 12 |
| Will Harris | Det | mr | 34 | 0.98 | 5 | 2 | 0 | 40 | 0 | 0 | 0 | 46.0 | 29 | 5 | 5 | 18 | 54 | 3 | 4 |
| Jeremy Hellickson | Min | sp | 32 | 4.58 | 9 | 8 | 0 | 23 | 23 | 0 | 0 | 137.2 | 147 | 74 | 70 | 31 | 86 | 21 | 19 |
| Heath Hembree | Det | mr | 30 | 3.68 | 2 | 4 | 0 | 50 | 0 | 0 | 0 | 71.0 | 54 | 34 | 29 | 33 | 82 | 9 | 3 |
| Kyle Hendricks |   | sp | 29 | 3.09 | 13 | 10 | 0 | 33 | 33 | 4 | 2 | 224.1 | 204 | 84 | 77 | 32 | 164 | 30 | 25 |
| Elieser Hernandez | KCR | mr | 24 | 5.28 | 3 | 2 | 0 | 26 | 0 | 0 | 0 | 44.1 | 54 | 28 | 26 | 15 | 23 | 8 | 5 |
| Kelvin Herrera | Sea | cl | 29 | 1.05 | 2 | 0 | 0 | 37 | 0 | 0 | 0 | 42.2 | 39 | 5 | 5 | 6 | 24 | 1 | 11 |
| Trevor Hildenberger | Tor | mr | 28 | 5.56 | 3 | 3 | 1 | 50 | 0 | 0 | 0 | 68.0 | 76 | 44 | 42 | 17 | 59 | 11 | 6 |
| Rich Hill* | ChW | sp | 39 | 4.14 | 15 | 6 | 0 | 28 | 28 | 1 | 1 | 176.0 | 163 | 82 | 81 | 38 | 215 | 30 | 7 |
| Tim Hill* | Mtl | mr | 29 | 6.94 | 3 | 1 | 1 | 41 | 0 | 0 | 0 | 35.0 | 39 | 28 | 27 | 26 | 20 | 4 | 5 |
| Yoshihisa Hirano | Bal | mr | 35 | 3.48 | 3 | 3 | 2 | 51 | 0 | 0 | 0 | 67.1 | 59 | 28 | 26 | 16 | 56 | 8 | 20 |
| Derek Holland* | ChW | sp | 32 | 4.29 | 9 | 8 | 1 | 39 | 30 | 0 | 0 | 186.2 | 180 | 96 | 89 | 89 | 204 | 17 | 13 |
| Clay Holmes | LAA | mr | 26 | 4.01 | 0 | 1 | 0 | 13 | 0 | 0 | 0 | 24.2 | 19 | 11 | 11 | 14 | 15 | 5 | 5 |
| Dakota Hudson | KCR | mr | 24 | 0.77 | 1 | 0 | 2 | 6 | 0 | 0 | 0 | 11.2 | 5 | 1 | 1 | 5 | 10 | 0 | 1 |
| Daniel Hudson | Oak | mr | 32 | 2.26 | 1 | 1 | 1 | 25 | 0 | 0 | 0 | 51.2 | 36 | 14 | 13 | 13 | 52 | 5 | 1 |
| Tommy Hunter | ChW | mr | 32 | 4.44 | 4 | 1 | 2 | 58 | 0 | 0 | 0 | 77.0 | 81 | 41 | 38 | 15 | 51 | 7 | 6 |
| Edwin Jackson | Sea | sp | 35 | 6.27 | 4 | 10 | 0 | 20 | 20 | 0 | 0 | 112.0 | 133 | 91 | 78 | 48 | 76 | 21 | 5 |
| Luke Jackson | Bos | mr | 27 | 8.25 | 2 | 5 | 1 | 46 | 0 | 0 | 0 | 60.0 | 75 | 58 | 55 | 42 | 70 | 5 | 1 |
| Josh James | Mtl | sp | 26 | 2.68 | 2 | 2 | 0 | 7 | 7 | 0 | 0 | 37.0 | 24 | 12 | 11 | 15 | 49 | 6 | 1 |
| Dan Jennings* | NYY | mr | 32 | 4.50 | 0 | 0 | 0 | 11 | 0 | 0 | 0 | 12.0 | 12 | 6 | 6 | 5 | 9 | 3 | 1 |
| Joe Jimenez | Cle | mr | 24 | 3.25 | 7 | 2 | 2 | 63 | 1 | 0 | 0 | 74.2 | 51 | 28 | 27 | 25 | 83 | 6 | 7 |
| Jim Johnson | Min | mr | 36 | 2.18 | 1 | 5 | 5 | 46 | 0 | 0 | 0 | 66.0 | 57 | 18 | 16 | 17 | 47 | 11 | 12 |
| Pierce Johnson | Sea | mr | 28 | 2.06 | 3 | 1 | 0 | 18 | 0 | 0 | 0 | 35.0 | 26 | 9 | 8 | 13 | 31 | 2 | 2 |
| Nate Jones | Oak | mr | 33 | 2.25 | 4 | 0 | 2 | 23 | 0 | 0 | 0 | 32.0 | 24 | 10 | 8 | 14 | 30 | 1 | 4 |
| Jake Junis | KCR | sp | 26 | 3.43 | 15 | 10 | 0 | 30 | 30 | 3 | 1 | 191.2 | 160 | 76 | 73 | 39 | 175 | 26 | 9 |
| Tommy Kahnle | Tex | mr | 29 | 2.66 | 1 | 1 | 0 | 15 | 0 | 0 | 0 | 20.1 | 18 | 6 | 6 | 12 | 21 | 2 | 0 |
| Brad Keller | Cle | sp | 23 | 3.41 | 12 | 4 | 0 | 24 | 24 | 0 | 0 | 145.0 | 144 | 61 | 55 | 49 | 96 | 9 | 14 |
| Shawn Kelley | NYY | mr | 35 | 2.65 | 2 | 2 | 3 | 44 | 0 | 0 | 0 | 54.1 | 41 | 16 | 16 | 9 | 52 | 6 | 1 |
| Casey Kelly | Was | mr | 29 | 3.19 | 3 | 1 | 0 | 6 | 6 | 0 | 0 | 36.2 | 34 | 17 | 13 | 5 | 24 | 7 | 4 |
| Ian Kennedy | Tor | sp | 34 | 5.90 | 5 | 13 | 0 | 26 | 26 | 0 | 0 | 137.1 | 154 | 104 | 90 | 40 | 119 | 37 | 5 |
| Dallas Keuchel* | LAA | sp | 31 | 5.53 | 10 | 16 | 0 | 34 | 34 | 0 | 0 | 195.1 | 243 | 127 | 120 | 53 | 138 | 15 | 17 |
| Brandon Kintzler | Sea | mr | 34 | 4.30 | 2 | 1 | 1 | 50 | 0 | 0 | 0 | 60.2 | 60 | 32 | 29 | 18 | 36 | 7 | 8 |
| Matt Koch | Mtl | sp | 28 | 0.00 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 3.2 | 3 | 0 | 0 | 0 | 2 | 0 | 1 |
| Wade LeBlanc* | Oak | sp | 34 | 3.90 | 8 | 6 | 0 | 31 | 31 | 0 | 0 | 189.0 | 180 | 95 | 82 | 53 | 172 | 24 | 5 |
| Jose Leclerc | Det | mr | 25 | 0.52 | 7 | 0 | 30 | 54 | 0 | 0 | 0 | 69.1 | 15 | 4 | 4 | 30 | 95 | 0 | 2 |
| Dominic Leone | Det | mr | 27 | 4.31 | 0 | 1 | 2 | 23 | 0 | 0 | 0 | 31.1 | 39 | 17 | 15 | 9 | 36 | 5 | 3 |
| Jon Lester* | ChW | sp | 35 | 4.24 | 14 | 9 | 0 | 32 | 32 | 1 | 0 | 199.2 | 213 | 98 | 94 | 76 | 174 | 20 | 17 |
| Artie Lewicki | Bos | mr | 27 | 6.00 | 1 | 5 | 0 | 11 | 4 | 0 | 0 | 27.0 | 36 | 18 | 18 | 10 | 29 | 5 | 4 |
| Adam Liberatore* | ChW | mr | 32 | 4.11 | 1 | 0 | 2 | 12 | 0 | 0 | 0 | 15.1 | 12 | 8 | 7 | 1 | 18 | 3 | 2 |
| Ben Lively | Mtl | sp | 27 | 5.31 | 1 | 1 | 0 | 12 | 1 | 0 | 0 | 20.1 | 28 | 13 | 12 | 11 | 20 | 3 | 3 |
| Jorge Lopez | Cle | mr | 26 | 6.49 | 2 | 3 | 0 | 12 | 6 | 0 | 0 | 43.0 | 52 | 34 | 31 | 23 | 37 | 5 | 1 |
| Pablo Lopez | Mtl | sp | 23 | 3.19 | 9 | 4 | 0 | 14 | 14 | 3 | 2 | 104.1 | 85 | 40 | 37 | 20 | 77 | 9 | 4 |
| Yoan Lopez | Cle | mr | 26 | 9.53 | 0 | 0 | 0 | 9 | 0 | 0 | 0 | 5.2 | 7 | 6 | 6 | 4 | 7 | 0 | 0 |
| Aaron Loup* | Tor | mr | 31 | 4.20 | 2 | 1 | 0 | 16 | 0 | 0 | 0 | 15.0 | 17 | 7 | 7 | 8 | 18 | 1 | 4 |
| Seth Lugo | Bal | mr | 29 | 2.30 | 9 | 2 | 1 | 23 | 10 | 1 | 0 | 90.0 | 91 | 31 | 23 | 15 | 85 | 9 | 6 |
| Jordan Lyles | Was | mr | 28 | 4.81 | 5 | 5 | 0 | 12 | 12 | 0 | 0 | 67.1 | 72 | 36 | 36 | 14 | 72 | 16 | 2 |
| Lance Lynn | Bos | sp | 32 | 4.41 | 9 | 11 | 0 | 28 | 28 | 0 | 0 | 159.1 | 184 | 89 | 78 | 74 | 167 | 8 | 8 |
| Sean Manaea* | Tex | sp | 27 | 4.96 | 8 | 15 | 0 | 30 | 30 | 1 | 0 | 185.0 | 208 | 112 | 102 | 31 | 128 | 39 | 9 |
| Carlos Martinez | Min | sp | 27 | 3.42 | 10 | 3 | 0 | 17 | 17 | 1 | 1 | 108.0 | 79 | 42 | 41 | 44 | 96 | 7 | 16 |
| Phil Maton | KCR | mr | 26 | 4.32 | 4 | 1 | 1 | 29 | 0 | 0 | 0 | 33.1 | 39 | 16 | 16 | 7 | 41 | 5 | 3 |
| Trevor May | NYY | mr | 29 | 2.16 | 2 | 1 | 2 | 17 | 0 | 0 | 0 | 25.0 | 11 | 6 | 6 | 4 | 32 | 5 | 1 |
| Mike Mayers | Bos | mr | 27 | 7.36 | 0 | 0 | 1 | 38 | 0 | 0 | 0 | 51.1 | 69 | 44 | 42 | 21 | 53 | 12 | 1 |
| Tim Mayza* | Tex | mr | 27 | 3.86 | 2 | 2 | 4 | 27 | 0 | 0 | 0 | 37.1 | 39 | 17 | 16 | 13 | 44 | 2 | 5 |
| Zach McAllister | Tor | mr | 31 | 11.15 | 1 | 1 | 0 | 14 | 0 | 0 | 0 | 15.1 | 26 | 19 | 19 | 5 | 13 | 4 | 0 |
| Brandon McCarthy | Mtl | sp | 35 | 12.46 | 1 | 13 | 0 | 14 | 14 | 0 | 0 | 52.0 | 105 | 73 | 72 | 26 | 39 | 23 | 9 |
| Kevin McCarthy | LAA | mr | 27 | 4.14 | 1 | 1 | 0 | 51 | 0 | 0 | 0 | 74.0 | 82 | 36 | 34 | 12 | 53 | 13 | 8 |
| T.J. McFarland* |   | mr | 30 | 1.97 | 9 | 1 | 10 | 58 | 0 | 0 | 0 | 82.1 | 71 | 18 | 18 | 23 | 42 | 4 | 12 |
| Jake McGee* | Min | mr | 32 | 5.00 | 0 | 1 | 3 | 9 | 0 | 0 | 0 | 9.0 | 11 | 7 | 5 | 5 | 8 | 0 | 1 |
| Mark Melancon | Min | mr | 34 | 0.79 | 2 | 3 | 16 | 24 | 0 | 0 | 0 | 34.0 | 27 | 3 | 3 | 5 | 29 | 0 | 2 |
| Yohander Mendez* | Oak | sp | 24 | 4.25 | 4 | 2 | 0 | 10 | 10 | 0 | 0 | 53.0 | 49 | 26 | 25 | 32 | 33 | 6 | 9 |
| Daniel Mengden | Was | sp | 26 | 5.96 | 4 | 8 | 0 | 18 | 18 | 2 | 0 | 111.2 | 123 | 74 | 74 | 33 | 72 | 25 | 7 |
| Keynan Middleton | Cle | mr | 25 | 4.57 | 0 | 0 | 1 | 14 | 0 | 0 | 0 | 21.2 | 24 | 13 | 11 | 9 | 26 | 3 | 2 |
| Wade Miley* | Oak | sp | 32 | 3.58 | 7 | 6 | 0 | 20 | 20 | 0 | 0 | 113.0 | 116 | 48 | 45 | 35 | 68 | 9 | 10 |
| Andrew Miller* | Tor | mr | 34 | 3.41 | 1 | 1 | 5 | 38 | 0 | 0 | 0 | 37.0 | 37 | 15 | 14 | 21 | 46 | 2 | 1 |
| Justin Miller | Bal | mr | 32 | 4.24 | 5 | 4 | 0 | 30 | 0 | 0 | 0 | 57.1 | 38 | 28 | 27 | 15 | 62 | 11 | 4 |
| Shelby Miller | Tex | sp | 28 | 20.25 | 0 | 4 | 0 | 4 | 4 | 0 | 0 | 10.2 | 29 | 24 | 24 | 3 | 10 | 8 | 1 |
| Alec Mills | ChW | mr | 27 | 2.09 | 4 | 0 | 0 | 6 | 6 | 0 | 0 | 43.0 | 26 | 11 | 10 | 14 | 43 | 3 | 4 |
| Juan Minaya | Oak | mr | 28 | 2.80 | 1 | 4 | 2 | 31 | 0 | 0 | 0 | 54.2 | 32 | 18 | 17 | 23 | 64 | 4 | 0 |
| Mike Minor* | Was | sp | 31 | 4.97 | 13 | 13 | 0 | 30 | 30 | 2 | 0 | 186.1 | 181 | 104 | 103 | 50 | 166 | 31 | 12 |
| A.J. Minter* | LAA | mr | 25 | 3.86 | 4 | 6 | 18 | 54 | 0 | 0 | 0 | 58.1 | 70 | 27 | 25 | 26 | 63 | 7 | 2 |
| Ariel Miranda* | Was | sp | 30 | 11.37 | 0 | 2 | 0 | 4 | 4 | 0 | 0 | 12.2 | 22 | 16 | 16 | 10 | 9 | 0 | 1 |
| Bryan Mitchell | Mtl | sp | 28 | 4.98 | 0 | 1 | 1 | 31 | 0 | 0 | 0 | 68.2 | 67 | 40 | 38 | 31 | 26 | 12 | 12 |
| Jordan Montgomery* | Bal | sp | 26 | 4.24 | 4 | 3 | 0 | 10 | 10 | 0 | 0 | 51.0 | 44 | 24 | 24 | 28 | 39 | 4 | 8 |
| Matt Moore* | Tex | mr | 30 | 5.95 | 2 | 9 | 0 | 29 | 16 | 0 | 0 | 101.1 | 134 | 70 | 67 | 39 | 86 | 20 | 6 |
| Adam Morgan* | Det | mr | 29 | 1.65 | 6 | 0 | 2 | 51 | 0 | 0 | 0 | 60.0 | 42 | 11 | 11 | 20 | 76 | 4 | 4 |
| Reyes Moronta |   | mr | 26 | 2.68 | 2 | 3 | 12 | 64 | 0 | 0 | 0 | 77.1 | 45 | 26 | 23 | 38 | 97 | 4 | 4 |
| Gabriel Moya* |   | mr | 24 | 4.70 | 1 | 2 | 0 | 35 | 0 | 0 | 0 | 38.1 | 33 | 20 | 20 | 10 | 33 | 7 | 3 |
| Peter Moylan | Mtl | mr | 40 | 1.35 | 0 | 0 | 0 | 5 | 0 | 0 | 0 | 6.2 | 9 | 1 | 1 | 1 | 3 | 1 | 2 |
| Hector Neris | Det | mr | 30 | 5.40 | 4 | 7 | 2 | 48 | 0 | 0 | 0 | 51.2 | 55 | 31 | 31 | 23 | 73 | 14 | 2 |
| Pat Neshek | Min | mr | 38 | 2.59 | 2 | 3 | 4 | 18 | 0 | 0 | 0 | 24.1 | 17 | 10 | 7 | 5 | 19 | 1 | 1 |
| Juan Nicasio | Tex | mr | 32 | 5.40 | 0 | 1 | 0 | 21 | 0 | 0 | 0 | 35.0 | 42 | 23 | 21 | 9 | 47 | 3 | 0 |
| Bud Norris | Min | cl | 34 | 4.31 | 1 | 9 | 4 | 53 | 0 | 0 | 0 | 64.2 | 57 | 34 | 31 | 17 | 71 | 13 | 4 |
| James Norwood | ChW | mr | 25 | 5.06 | 0 | 1 | 2 | 8 | 0 | 0 | 0 | 10.2 | 14 | 9 | 6 | 7 | 8 | 1 | 1 |
| Vidal Nuno* | Min | mr | 31 | 2.80 | 3 | 1 | 6 | 26 | 0 | 0 | 0 | 35.1 | 30 | 12 | 11 | 10 | 27 | 5 | 2 |
| Darren O'Day | Sea | mr | 36 | 0.00 | 0 | 0 | 0 | 7 | 0 | 0 | 0 | 7.1 | 3 | 0 | 0 | 0 | 9 | 0 | 0 |
| Trevor Oaks | Oak | sp | 26 | 4.26 | 1 | 1 | 0 | 4 | 4 | 0 | 0 | 19.0 | 25 | 10 | 9 | 9 | 12 | 1 | 4 |
| Jake Odorizzi | Sea | sp | 29 | 5.26 | 8 | 12 | 0 | 32 | 32 | 0 | 0 | 174.2 | 187 | 104 | 102 | 68 | 177 | 27 | 7 |
| Seung Hwan Oh | Tor | mr | 36 | 4.69 | 6 | 7 | 0 | 58 | 0 | 0 | 0 | 71.0 | 74 | 43 | 37 | 34 | 77 | 12 | 2 |
| Shohei Ohtani | ChW | dh | 24 | 5.00 | 6 | 5 | 0 | 14 | 14 | 0 | 0 | 77.1 | 80 | 44 | 43 | 50 | 88 | 9 | 6 |
| Steven Okert* | Det | mr | 27 | 13.50 | 1 | 0 | 0 | 4 | 0 | 0 | 0 | 4.0 | 8 | 6 | 6 | 1 | 3 | 2 | 0 |
| Roberto Osuna | Tor | cl | 24 | 2.53 | 4 | 4 | 21 | 46 | 0 | 0 | 0 | 42.2 | 32 | 13 | 12 | 12 | 37 | 2 | 3 |
| Dan Otero | KCR | mr | 34 | 3.02 | 3 | 1 | 1 | 40 | 0 | 0 | 0 | 41.2 | 51 | 14 | 14 | 4 | 35 | 4 | 8 |
| Emilio Pagan | Was | mr | 28 | 9.50 | 2 | 0 | 1 | 43 | 0 | 0 | 0 | 59.2 | 89 | 71 | 63 | 30 | 62 | 15 | 1 |
| Thomas Pannone* | Oak | sp | 25 | 4.75 | 3 | 4 | 0 | 9 | 9 | 0 | 0 | 55.0 | 57 | 29 | 29 | 17 | 37 | 10 | 2 |
| Blake Parker | Min | mr | 34 | 4.09 | 5 | 2 | 1 | 43 | 0 | 0 | 0 | 70.1 | 70 | 36 | 32 | 18 | 68 | 15 | 10 |
| James Paxton* | Sea | sp | 30 | 3.57 | 10 | 6 | 0 | 30 | 30 | 1 | 0 | 184.0 | 158 | 74 | 73 | 55 | 228 | 19 | 15 |
| Brad Peacock | Bal | mr | 31 | 5.58 | 4 | 3 | 25 | 61 | 0 | 0 | 0 | 61.1 | 65 | 43 | 38 | 28 | 85 | 12 | 4 |
| Freddy Peralta | Min | sp | 23 | 3.30 | 6 | 7 | 0 | 18 | 18 | 0 | 0 | 103.2 | 72 | 41 | 38 | 52 | 145 | 12 | 9 |
| Luis Perdomo | Mtl | sp | 26 | 4.97 | 3 | 6 | 0 | 14 | 14 | 0 | 0 | 70.2 | 81 | 43 | 39 | 32 | 58 | 7 | 11 |
| Cionel Perez* | Det | mr | 23 | 1.35 | 0 | 0 | 1 | 15 | 0 | 0 | 0 | 13.1 | 4 | 4 | 2 | 9 | 15 | 2 | 0 |
| Yusmeiro Petit | LAA | mr | 34 | 3.75 | 7 | 6 | 5 | 61 | 0 | 0 | 0 | 93.2 | 88 | 39 | 39 | 14 | 67 | 12 | 5 |
| Nick Pivetta | Was | sp | 26 | 3.79 | 10 | 9 | 0 | 32 | 32 | 3 | 1 | 194.2 | 188 | 88 | 82 | 53 | 230 | 35 | 25 |
| Drew Pomeranz* | Sea | mr | 30 | 6.30 | 0 | 1 | 0 | 12 | 1 | 0 | 0 | 20.0 | 22 | 14 | 14 | 15 | 17 | 5 | 3 |
| Daniel Poncedeleon | NYY | mr | 27 | 2.79 | 3 | 2 | 0 | 8 | 8 | 0 | 0 | 48.1 | 42 | 18 | 15 | 14 | 41 | 3 | 3 |
| Ryan Pressly | Was | mr | 30 | 2.20 | 5 | 1 | 29 | 57 | 0 | 0 | 0 | 77.2 | 69 | 21 | 19 | 15 | 110 | 4 | 4 |
| Erasmo Ramirez | Tor | sp | 29 | 4.83 | 5 | 6 | 0 | 14 | 14 | 1 | 0 | 82.0 | 82 | 47 | 44 | 14 | 60 | 20 | 5 |
| Noe Ramirez | Tex | mr | 29 | 5.72 | 2 | 5 | 1 | 61 | 0 | 0 | 0 | 96.0 | 103 | 64 | 61 | 36 | 102 | 16 | 3 |
| Yefry Ramirez | KCR | sp | 25 | 3.08 | 2 | 0 | 2 | 23 | 0 | 0 | 0 | 52.2 | 44 | 21 | 18 | 22 | 45 | 4 | 3 |
| A.J. Ramos | Mtl | mr | 32 | 6.14 | 1 | 0 | 0 | 7 | 0 | 0 | 0 | 7.1 | 8 | 5 | 5 | 5 | 5 | 2 | 1 |
| Cody Reed* | Tex | mr | 26 | 4.80 | 1 | 5 | 0 | 11 | 11 | 0 | 0 | 54.1 | 70 | 31 | 29 | 29 | 60 | 3 | 9 |
| Garrett Richards |   | sp | 31 | 6.19 | 4 | 12 | 0 | 20 | 20 | 0 | 0 | 104.2 | 123 | 76 | 72 | 56 | 111 | 23 | 15 |
| Trevor Richards | Mtl | sp | 26 | 4.88 | 7 | 14 | 0 | 29 | 29 | 0 | 0 | 158.2 | 163 | 87 | 86 | 47 | 161 | 24 | 12 |
| Tanner Roark | Bal | sp | 32 | 4.15 | 10 | 9 | 0 | 30 | 30 | 1 | 0 | 180.0 | 178 | 89 | 83 | 52 | 159 | 18 | 20 |
| David Robertson | NYY | mr | 34 | 2.59 | 6 | 3 | 11 | 38 | 0 | 0 | 0 | 59.0 | 36 | 19 | 17 | 19 | 73 | 7 | 2 |
| Hansel Robles | Min | mr | 28 | 4.13 | 3 | 3 | 2 | 39 | 0 | 0 | 0 | 48.0 | 54 | 23 | 22 | 17 | 46 | 5 | 6 |
| Fernando Rodney | Bos | cl | 42 | 4.20 | 2 | 5 | 17 | 65 | 0 | 0 | 0 | 75.0 | 87 | 41 | 35 | 31 | 76 | 6 | 6 |
| Dereck Rodriguez | KCR | sp | 27 | 3.39 | 10 | 6 | 0 | 23 | 23 | 2 | 0 | 148.2 | 122 | 64 | 56 | 28 | 114 | 13 | 13 |
| Eduardo Rodriguez* | Bos | sp | 26 | 4.34 | 8 | 11 | 0 | 26 | 26 | 0 | 0 | 149.1 | 159 | 77 | 72 | 53 | 169 | 20 | 11 |
| Jefry Rodriguez | KCR | sp | 25 | 6.64 | 4 | 1 | 2 | 24 | 0 | 0 | 0 | 39.1 | 39 | 29 | 29 | 25 | 28 | 6 | 1 |
| Richard Rodriguez | Was | mr | 29 | 3.81 | 4 | 7 | 6 | 62 | 0 | 0 | 0 | 75.2 | 74 | 32 | 32 | 21 | 95 | 6 | 6 |
| Chaz Roe | NYY | mr | 32 | 5.67 | 4 | 7 | 4 | 50 | 0 | 0 | 0 | 54.0 | 51 | 36 | 34 | 24 | 54 | 12 | 4 |
| Taylor Rogers* | Sea | mr | 28 | 1.52 | 10 | 0 | 3 | 65 | 0 | 0 | 0 | 65.1 | 44 | 11 | 11 | 6 | 73 | 4 | 4 |
| Sergio Romo | Cle | mr | 36 | 4.00 | 6 | 2 | 0 | 66 | 0 | 0 | 0 | 69.2 | 79 | 35 | 31 | 28 | 70 | 13 | 10 |
| Randy Rosario* | Cle | mr | 25 | 4.28 | 3 | 3 | 1 | 53 | 0 | 0 | 0 | 40.0 | 52 | 20 | 19 | 21 | 32 | 2 | 10 |
| Chris Rusin* |   | mr | 32 | 5.40 | 0 | 1 | 0 | 16 | 0 | 0 | 0 | 18.1 | 14 | 11 | 11 | 7 | 12 | 4 | 1 |
| Connor Sadzeck | ChW | mr | 27 | 11.70 | 1 | 1 | 2 | 14 | 0 | 0 | 0 | 10.0 | 15 | 13 | 13 | 13 | 7 | 1 | 1 |
| Jeff Samardzija | Tor | sp | 34 | 5.49 | 0 | 6 | 0 | 14 | 14 | 0 | 0 | 62.1 | 67 | 40 | 38 | 40 | 36 | 8 | 5 |
| Aaron Sanchez | Min | sp | 26 | 4.32 | 1 | 4 | 0 | 9 | 9 | 0 | 0 | 50.0 | 44 | 24 | 24 | 22 | 40 | 5 | 6 |
| Anibal Sanchez | Min | sp | 35 | 4.62 | 10 | 10 | 0 | 28 | 28 | 0 | 0 | 157.2 | 148 | 85 | 81 | 43 | 142 | 24 | 7 |
| Edgar Santana | Oak | mr | 27 | 2.96 | 4 | 5 | 2 | 45 | 0 | 0 | 0 | 76.0 | 61 | 26 | 25 | 15 | 63 | 8 | 8 |
| Jaime Schultz | Min | mr | 28 | 4.68 | 1 | 0 | 2 | 13 | 0 | 0 | 0 | 25.0 | 21 | 13 | 13 | 13 | 36 | 3 | 1 |
| Tanner Scott* | KCR | mr | 24 | 3.07 | 4 | 0 | 2 | 37 | 0 | 0 | 0 | 41.0 | 24 | 15 | 14 | 29 | 62 | 5 | 2 |
| Luis Severino | NYY | sp | 25 | 4.22 | 12 | 14 | 0 | 32 | 32 | 1 | 1 | 207.0 | 203 | 107 | 97 | 61 | 242 | 30 | 13 |
| Justus Sheffield* | Det | mr | 23 | 9.00 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 1.0 | 0 | 1 | 1 | 1 | 0 | 0 | 0 |
| Jimmie Sherfy | Det | mr | 27 | 3.26 | 0 | 0 | 0 | 16 | 0 | 0 | 0 | 19.1 | 9 | 8 | 7 | 18 | 23 | 4 | 0 |
| James Shields | Bos | sp | 37 | 3.90 | 11 | 11 | 0 | 26 | 26 | 4 | 1 | 170.2 | 145 | 75 | 74 | 61 | 118 | 18 | 10 |
| Matt Shoemaker | LAA | sp | 32 | 5.40 | 2 | 4 | 0 | 10 | 10 | 0 | 0 | 55.0 | 68 | 38 | 33 | 15 | 60 | 8 | 5 |
| Chasen Shreve* | KCR | mr | 28 | 3.86 | 5 | 2 | 3 | 31 | 0 | 0 | 0 | 37.1 | 34 | 17 | 16 | 16 | 37 | 7 | 3 |
| Lucas Sims | Det | mr | 25 | 6.48 | 0 | 0 | 0 | 12 | 0 | 0 | 0 | 16.2 | 19 | 13 | 12 | 11 | 14 | 1 | 0 |
| Tony Sipp* | ChW | mr | 35 | 2.72 | 5 | 2 | 4 | 50 | 0 | 0 | 0 | 46.1 | 31 | 14 | 14 | 30 | 54 | 0 | 6 |
| Tyler Skaggs* | Tex | sp | 27 | 5.30 | 7 | 16 | 0 | 28 | 28 | 0 | 0 | 161.1 | 198 | 97 | 95 | 44 | 173 | 24 | 14 |
| Carson Smith | NYY | mr | 29 | 16.43 | 0 | 1 | 0 | 7 | 0 | 0 | 0 | 7.2 | 16 | 14 | 14 | 3 | 9 | 3 | 1 |
| Drew Smith | Sea | mr | 25 | 11.57 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 2.1 | 7 | 3 | 3 | 0 | 1 | 0 | 1 |
| Chad Sobotka | Tor | mr | 25 | 3.77 | 2 | 1 | 1 | 11 | 0 | 0 | 0 | 14.1 | 8 | 7 | 6 | 10 | 16 | 3 | 1 |
| Joakim Soria | Oak | mr | 35 | 2.18 | 8 | 4 | 2 | 54 | 0 | 0 | 0 | 70.1 | 46 | 21 | 17 | 21 | 85 | 2 | 2 |
| Ryne Stanek | Bos | mr | 27 | 4.04 | 6 | 2 | 3 | 54 | 0 | 0 | 0 | 78.0 | 55 | 38 | 35 | 15 | 108 | 10 | 3 |
| Drew Steckenrider | NYY | mr | 28 | 2.97 | 0 | 1 | 6 | 50 | 0 | 0 | 0 | 72.2 | 63 | 24 | 24 | 21 | 80 | 7 | 3 |
| Brock Stewart | Det | mr | 27 | 15.80 | 0 | 2 | 0 | 12 | 2 | 0 | 0 | 13.2 | 26 | 26 | 24 | 13 | 12 | 8 | 0 |
| Kohl Stewart | Tor | sp | 24 | 5.85 | 2 | 2 | 0 | 6 | 4 | 0 | 0 | 20.0 | 21 | 13 | 13 | 13 | 16 | 0 | 6 |
| Robert Stock | Mtl | mr | 29 | 3.60 | 0 | 8 | 13 | 32 | 0 | 0 | 0 | 45.0 | 48 | 23 | 18 | 17 | 52 | 1 | 6 |
| Dan Straily | Oak | sp | 30 | 4.04 | 11 | 8 | 0 | 26 | 26 | 3 | 1 | 164.2 | 137 | 77 | 74 | 57 | 121 | 34 | 15 |
| Daniel Stumpf* | Cle | mr | 28 | 6.00 | 0 | 1 | 0 | 21 | 0 | 0 | 0 | 12.0 | 17 | 10 | 8 | 8 | 13 | 2 | 0 |
| Andrew Suarez* | Bos | sp | 26 | 3.78 | 12 | 7 | 0 | 30 | 30 | 1 | 1 | 183.1 | 200 | 84 | 77 | 44 | 148 | 21 | 32 |
| Noah Syndergaard | Tor | sp | 26 | 3.41 | 13 | 7 | 0 | 29 | 29 | 2 | 1 | 205.2 | 201 | 83 | 78 | 39 | 181 | 18 | 12 |
| Jameson Taillon | Min | sp | 27 | 4.12 | 14 | 7 | 0 | 32 | 32 | 1 | 1 | 203.0 | 212 | 93 | 93 | 43 | 201 | 21 | 14 |
| Julio Teheran | Bal | sp | 28 | 4.23 | 9 | 10 | 0 | 30 | 30 | 0 | 0 | 170.1 | 149 | 91 | 80 | 79 | 178 | 32 | 9 |
| Jake Thompson | Tex | mr | 25 | 1.53 | 2 | 0 | 0 | 11 | 0 | 0 | 0 | 17.2 | 11 | 3 | 3 | 16 | 20 | 1 | 3 |
| Blake Treinen | KCR | cl | 31 | 1.21 | 3 | 0 | 33 | 44 | 0 | 0 | 0 | 44.2 | 29 | 6 | 6 | 9 | 55 | 0 | 3 |
| Lou Trivino | Cle | mr | 27 | 2.50 | 6 | 2 | 3 | 56 | 0 | 0 | 0 | 72.0 | 53 | 21 | 20 | 23 | 80 | 8 | 10 |
| Nick Tropeano | Was | sp | 28 | 4.77 | 4 | 4 | 0 | 18 | 18 | 0 | 0 | 100.0 | 83 | 56 | 53 | 37 | 88 | 21 | 7 |
| Sam Tuivailala | KCR | mr | 26 | 3.74 | 0 | 0 | 2 | 21 | 0 | 0 | 0 | 21.2 | 30 | 10 | 9 | 7 | 21 | 2 | 1 |
| Jose Urena | Det | sp | 27 | 3.66 | 13 | 10 | 0 | 31 | 31 | 0 | 0 | 194.0 | 178 | 86 | 79 | 48 | 148 | 27 | 22 |
| Felipe Vazquez* | Cle | cl | 27 | 1.99 | 6 | 2 | 39 | 56 | 0 | 0 | 0 | 63.1 | 49 | 14 | 14 | 13 | 76 | 5 | 4 |
| Pat Venditte* | Oak | mr | 34 | 1.46 | 0 | 0 | 0 | 10 | 0 | 0 | 0 | 12.1 | 7 | 7 | 2 | 2 | 8 | 1 | 4 |
| Justin Verlander | Cle | sp | 36 | 3.74 | 11 | 10 | 0 | 35 | 35 | 1 | 0 | 224.0 | 200 | 105 | 93 | 47 | 312 | 31 | 10 |
| Arodys Vizcaino |   | cl | 28 | 5.76 | 4 | 1 | 2 | 35 | 0 | 0 | 0 | 45.1 | 50 | 29 | 29 | 29 | 52 | 9 | 7 |
| Michael Wacha | Tex | sp | 27 | 4.97 | 5 | 6 | 0 | 19 | 19 | 0 | 0 | 96.0 | 91 | 57 | 53 | 51 | 79 | 7 | 4 |
| Adam Wainwright | Cle | sp | 37 | 5.06 | 1 | 5 | 0 | 9 | 9 | 0 | 0 | 37.1 | 43 | 30 | 21 | 21 | 29 | 3 | 4 |
| Taijuan Walker | Sea | sp | 26 | 5.14 | 2 | 1 | 0 | 7 | 7 | 0 | 0 | 35.0 | 38 | 22 | 20 | 19 | 26 | 2 | 2 |
| Adam Warren | Bal | mr | 31 | 4.83 | 0 | 4 | 1 | 41 | 0 | 0 | 0 | 54.0 | 63 | 32 | 29 | 21 | 51 | 3 | 1 |
| J.B. Wendelken | ChW | mr | 26 | 1.80 | 3 | 1 | 1 | 14 | 0 | 0 | 0 | 20.0 | 9 | 5 | 4 | 8 | 17 | 3 | 1 |
| Taylor Williams | LAA | mr | 27 | 4.58 | 1 | 2 | 1 | 40 | 0 | 0 | 0 | 55.0 | 52 | 32 | 28 | 28 | 56 | 4 | 4 |
| Trevor Williams | LAA | sp | 27 | 3.58 | 14 | 13 | 0 | 31 | 31 | 0 | 0 | 183.1 | 169 | 95 | 73 | 65 | 140 | 15 | 14 |
| Alex Wilson | ChW | mr | 32 | 2.43 | 6 | 4 | 10 | 56 | 0 | 0 | 0 | 74.0 | 58 | 21 | 20 | 16 | 47 | 6 | 8 |
| Justin Wilson* | Bal | mr | 31 | 4.40 | 2 | 5 | 0 | 48 | 0 | 0 | 0 | 57.1 | 53 | 28 | 28 | 38 | 68 | 6 | 6 |
| Trey Wingenter | Tor | mr | 25 | 6.86 | 0 | 1 | 0 | 19 | 0 | 0 | 0 | 19.2 | 22 | 15 | 15 | 18 | 27 | 7 | 2 |
| Daniel Winkler | ChW | mr | 29 | 3.24 | 7 | 2 | 5 | 66 | 0 | 0 | 0 | 72.1 | 59 | 26 | 26 | 27 | 82 | 4 | 1 |
| Nick Wittgren | Sea | mr | 28 | 2.65 | 2 | 1 | 3 | 24 | 0 | 0 | 0 | 34.0 | 17 | 10 | 10 | 11 | 38 | 1 | 3 |
| Alex Wood* | Tor | sp | 28 | 4.40 | 5 | 12 | 0 | 31 | 31 | 0 | 0 | 174.0 | 170 | 92 | 85 | 48 | 169 | 30 | 18 |
| Blake Wood |   | mr | 33 | 1.29 | 1 | 0 | 1 | 11 | 0 | 0 | 0 | 14.0 | 11 | 3 | 2 | 8 | 11 | 0 | 3 |
| Hunter Wood | Tor | mr | 25 | 5.37 | 2 | 2 | 0 | 33 | 0 | 0 | 0 | 67.0 | 81 | 41 | 40 | 20 | 67 | 13 | 5 |
| Brandon Woodruff | Cle | mr | 26 | 3.61 | 3 | 1 | 0 | 10 | 10 | 0 | 0 | 57.1 | 57 | 23 | 23 | 10 | 67 | 6 | 3 |
| Steven Wright | Tex | mr | 34 | 2.14 | 7 | 1 | 0 | 10 | 10 | 0 | 0 | 67.1 | 42 | 16 | 16 | 31 | 42 | 3 | 12 |
| Jimmy Yacabonis | KCR | sp | 27 | 2.67 | 3 | 1 | 1 | 17 | 0 | 0 | 0 | 30.1 | 15 | 9 | 9 | 17 | 19 | 2 | 2 |
| Ryan Yarbrough* | Mtl | mr | 27 | 5.02 | 4 | 10 | 2 | 48 | 8 | 0 | 0 | 148.2 | 158 | 87 | 83 | 41 | 121 | 21 | 12 |
| Daniel Zamora* | Tex | mr | 26 | 5.68 | 0 | 1 | 2 | 6 | 0 | 0 | 0 | 6.1 | 6 | 4 | 4 | 4 | 7 | 0 | 0 |
| Jordan Zimmermann | Bal | sp | 33 | 6.39 | 3 | 11 | 0 | 27 | 27 | 0 | 0 | 155.0 | 185 | 118 | 110 | 39 | 133 | 40 | 4 |
| Secondary |
| Name | Team | P | Age | SB | CS | IW | HBP | WP | BK | SH | SF | H/9 | BB/9 | R/9 | K/9 | HR/9 | K/BB | WHIP |
| Matt Albers | Det | mr | 36 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.2 | 3.5 | 11.7 | 5.9 | 2.3 | 1.7 | 1.30 |
| Scott Alexander* | Tex | mr | 29 | 2 | 1 | 2 | 4 | 0 | 0 | 2 | 0 | 8.9 | 2.3 | 11.8 | 7.5 | 1.2 | 3.2 | 1.25 |
| Cody Allen | LAA | cl | 30 | 4 | 0 | 0 | 1 | 3 | 0 | 0 | 2 | 6.8 | 4.4 | 11.3 | 10.8 | 1.8 | 2.5 | 1.24 |
| Dan Altavilla | Cle | mr | 26 | 0 | 0 | 0 | 3 | 3 | 0 | 0 | 0 | 5.0 | 5.4 | 11.6 | 8.3 | 1.2 | 1.5 | 1.15 |
| Jose Alvarez* | LAA | mr | 30 | 2 | 0 | 0 | 2 | 1 | 0 | 1 | 1 | 8.5 | 3.3 | 12.8 | 6.2 | 0.0 | 1.9 | 1.32 |
| Brett Anderson* | Tor | sp | 31 | 0 | 0 | 3 | 5 | 7 | 0 | 0 | 2 | 10.4 | 1.7 | 12.6 | 5.2 | 0.9 | 3.0 | 1.35 |
| Chase Anderson | Det | sp | 31 | 11 | 2 | 0 | 13 | 1 | 0 | 5 | 3 | 8.2 | 3.4 | 12.2 | 7.1 | 2.1 | 2.1 | 1.28 |
| Tanner Anderson | Cle | mr | 26 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 27.0 | 4.5 | 31.5 | 6.8 | 2.3 | 1.5 | 3.50 |
| Victor Arano | LAA | mr | 24 | 4 | 0 | 3 | 1 | 1 | 0 | 0 | 3 | 5.3 | 3.3 | 8.7 | 7.6 | 0.0 | 2.3 | 0.95 |
| Pedro Araujo | Tex | mr | 25 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 12.5 | 6.2 | 18.7 | 10.4 | 2.1 | 1.7 | 2.08 |
| Chris Archer | LAA | sp | 30 | 8 | 2 | 4 | 6 | 9 | 0 | 0 | 4 | 9.9 | 2.9 | 13.1 | 9.8 | 1.3 | 3.4 | 1.42 |
| Shawn Armstrong | NYY | mr | 28 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 6.3 | 1.3 | 8.2 | 7.5 | 0.6 | 6.0 | 0.84 |
| John Axford | ChW | mr | 36 | 4 | 0 | 1 | 2 | 10 | 0 | 1 | 1 | 6.2 | 3.3 | 9.8 | 9.4 | 0.4 | 2.8 | 1.06 |
| Pedro Baez | Sea | mr | 31 | 4 | 0 | 1 | 0 | 2 | 1 | 0 | 3 | 8.3 | 4.1 | 12.4 | 9.4 | 0.6 | 2.3 | 1.38 |
| Sandy Baez | ChW | mr | 25 | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 7.5 | 5.3 | 12.8 | 6.8 | 2.3 | 1.3 | 1.42 |
| Homer Bailey | KCR | sp | 33 | 2 | 1 | 2 | 7 | 0 | 2 | 0 | 5 | 12.2 | 2.7 | 15.6 | 6.0 | 1.7 | 2.2 | 1.65 |
| Danny Barnes | Tex | mr | 29 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 11.9 | 4.3 | 16.5 | 8.2 | 2.6 | 1.9 | 1.79 |
| Jacob Barnes | Tex | mr | 29 | 2 | 0 | 0 | 1 | 8 | 1 | 0 | 1 | 9.9 | 3.2 | 13.3 | 7.3 | 1.2 | 2.3 | 1.46 |
| Kyle Barraclough | Cle | mr | 29 | 6 | 0 | 0 | 6 | 1 | 1 | 0 | 2 | 7.6 | 4.9 | 14.5 | 10.2 | 2.3 | 2.1 | 1.39 |
| Anthony Bass | Oak | mr | 31 | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 11.9 | 1.3 | 13.2 | 5.3 | 1.3 | 4.0 | 1.46 |
| Chris Bassitt | ChW | sp | 30 | 4 | 0 | 0 | 5 | 2 | 0 | 0 | 1 | 11.3 | 4.7 | 16.7 | 7.9 | 1.8 | 1.7 | 1.78 |
| Trevor Bauer | Min | sp | 28 | 10 | 4 | 2 | 8 | 16 | 0 | 2 | 4 | 5.5 | 3.1 | 9.0 | 11.4 | 0.5 | 3.6 | 0.96 |
| Tyler Beede | NYY | sp | 26 | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 2 | 12.1 | 5.9 | 18.4 | 8.2 | 1.2 | 1.4 | 2.00 |
| Jalen Beeks* | Mtl | mr | 25 | 1 | 0 | 1 | 6 | 2 | 0 | 1 | 2 | 8.6 | 4.7 | 14.3 | 9.1 | 1.5 | 1.9 | 1.47 |
| Dellin Betances | Sea | mr | 31 | 1 | 2 | 0 | 5 | 2 | 1 | 2 | 1 | 5.4 | 3.2 | 9.2 | 15.6 | 0.8 | 5.0 | 0.95 |
| Chad Bettis | Bos | sp | 30 | 3 | 4 | 1 | 9 | 3 | 1 | 2 | 3 | 9.6 | 3.7 | 13.9 | 4.8 | 1.4 | 1.3 | 1.48 |
| Jesse Biddle* | KCR | mr | 27 | 0 | 0 | 1 | 2 | 0 | 0 | 0 | 0 | 7.9 | 3.7 | 12.0 | 11.0 | 1.2 | 3.0 | 1.29 |
| Ty Blach* | Bal | mr | 28 | 0 | 0 | 4 | 4 | 1 | 4 | 5 | 3 | 10.1 | 2.4 | 12.7 | 5.2 | 0.8 | 2.2 | 1.39 |
| Ray Black | Det | mr | 29 | 1 | 0 | 0 | 0 | 2 | 0 | 0 | 1 | 7.0 | 3.7 | 10.7 | 14.9 | 2.8 | 4.0 | 1.19 |
| Paul Blackburn | LAA | sp | 25 | 5 | 0 | 0 | 2 | 1 | 0 | 1 | 3 | 8.3 | 1.9 | 10.5 | 6.8 | 0.4 | 3.6 | 1.13 |
| Richard Bleier* | Bal | mr | 32 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 10.2 | 0.3 | 10.5 | 3.9 | 0.3 | 13.0 | 1.17 |
| Jerry Blevins* | Mtl | mr | 35 | 0 | 0 | 1 | 2 | 0 | 0 | 0 | 0 | 5.9 | 4.9 | 11.9 | 11.9 | 2.2 | 2.4 | 1.20 |
| Ryan Borucki* | Sea | sp | 25 | 4 | 0 | 1 | 1 | 4 | 0 | 0 | 0 | 9.3 | 3.5 | 12.9 | 5.5 | 0.7 | 1.6 | 1.42 |
| Matt Bowman | Mtl | mr | 28 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10.1 | 2.6 | 12.8 | 11.3 | 0.8 | 4.3 | 1.42 |
| Chasen Bradford | Bos | mr | 29 | 4 | 3 | 2 | 10 | 0 | 0 | 0 | 2 | 10.3 | 1.8 | 13.4 | 7.0 | 1.7 | 3.9 | 1.35 |
| Archie Bradley | Bal | mr | 26 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 7.2 | 2.4 | 9.8 | 8.4 | 1.0 | 3.5 | 1.07 |
| John Brebbia |   | mr | 29 | 1 | 0 | 4 | 0 | 2 | 0 | 0 | 3 | 6.0 | 2.4 | 8.4 | 9.5 | 0.7 | 4.0 | 0.93 |
| Parker Bridwell | Bos | mr | 27 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 31.8 | 6.4 | 38.1 | 1.6 | 7.9 | 0.3 | 4.24 |
| Zach Britton* | Tex | mr | 31 | 0 | 0 | 1 | 3 | 6 | 0 | 1 | 1 | 6.5 | 6.1 | 13.2 | 8.4 | 1.1 | 1.4 | 1.40 |
| Clay Buchholz |   | sp | 34 | 1 | 2 | 0 | 4 | 1 | 0 | 3 | 7 | 8.5 | 1.8 | 10.6 | 7.1 | 1.0 | 3.9 | 1.15 |
| Ryan Buchter* | Mtl | mr | 32 | 0 | 1 | 7 | 2 | 2 | 0 | 0 | 1 | 7.2 | 4.4 | 12.0 | 8.3 | 0.5 | 1.9 | 1.28 |
| Madison Bumgarner* | Mtl | sp | 29 | 5 | 1 | 6 | 8 | 8 | 0 | 0 | 1 | 8.4 | 2.7 | 11.5 | 7.1 | 0.9 | 2.6 | 1.24 |
| Aaron Bummer* | Sea | mr | 25 | 1 | 0 | 3 | 2 | 7 | 0 | 0 | 0 | 13.2 | 5.3 | 19.1 | 9.8 | 0.0 | 1.9 | 2.06 |
| Dylan Bundy | NYY | sp | 26 | 8 | 1 | 1 | 5 | 4 | 3 | 1 | 3 | 9.3 | 2.2 | 11.7 | 9.9 | 2.6 | 4.4 | 1.28 |
| Corbin Burnes | Was | mr | 24 | 0 | 0 | 1 | 4 | 3 | 2 | 1 | 1 | 7.1 | 1.8 | 9.7 | 8.5 | 1.6 | 4.8 | 0.99 |
| Eddie Butler | Min | mr | 28 | 0 | 1 | 0 | 2 | 2 | 0 | 0 | 0 | 9.6 | 2.6 | 12.7 | 4.0 | 1.9 | 1.5 | 1.36 |
| Ty Buttrey | Tor | mr | 26 | 1 | 0 | 4 | 0 | 0 | 1 | 1 | 0 | 11.9 | 3.1 | 15.1 | 10.4 | 0.0 | 3.3 | 1.67 |
| Trevor Cahill | Tex | sp | 31 | 7 | 2 | 0 | 7 | 10 | 0 | 0 | 4 | 9.2 | 4.5 | 14.2 | 8.9 | 1.1 | 2.0 | 1.53 |
| Santiago Casilla | ChW | mr | 38 | 5 | 0 | 0 | 4 | 7 | 1 | 1 | 4 | 5.7 | 5.5 | 12.2 | 5.5 | 0.0 | 1.0 | 1.25 |
| Jose Castillo* | Tex | mr | 23 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 3.9 | 2.4 | 6.4 | 12.2 | 0.6 | 5.2 | 0.69 |
| Jhoulys Chacin | Cle | sp | 31 | 4 | 0 | 8 | 10 | 8 | 0 | 1 | 8 | 8.6 | 4.6 | 13.6 | 7.0 | 1.1 | 1.5 | 1.46 |
| Tyler Chatwood | Det | sp | 29 | 2 | 1 | 7 | 12 | 10 | 0 | 3 | 1 | 7.8 | 8.7 | 17.5 | 6.6 | 1.0 | 0.8 | 1.84 |
| Jesse Chavez | Was | mr | 35 | 4 | 2 | 2 | 6 | 0 | 0 | 0 | 5 | 7.1 | 1.7 | 9.3 | 8.3 | 1.7 | 4.8 | 0.98 |
| Wei-Yin Chen* | Det | sp | 33 | 3 | 2 | 4 | 3 | 2 | 0 | 4 | 5 | 9.3 | 3.8 | 13.2 | 7.5 | 1.5 | 2.0 | 1.45 |
| Tony Cingrani* | Oak | mr | 29 | 2 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 7.8 | 2.3 | 10.1 | 12.8 | 0.9 | 5.6 | 1.12 |
| Tyler Clippard | Sea | mr | 34 | 5 | 1 | 2 | 6 | 8 | 0 | 1 | 5 | 7.2 | 3.1 | 11.1 | 11.7 | 1.7 | 3.7 | 1.15 |
| A.J. Cole | LAA | mr | 27 | 0 | 0 | 2 | 1 | 2 | 0 | 0 | 0 | 10.5 | 3.1 | 13.9 | 10.2 | 2.8 | 3.3 | 1.52 |
| Gerrit Cole | Oak | sp | 28 | 12 | 2 | 0 | 10 | 15 | 0 | 2 | 2 | 8.0 | 3.6 | 12.0 | 11.8 | 0.9 | 3.3 | 1.28 |
| Louis Coleman | Was | mr | 33 | 1 | 0 | 0 | 10 | 3 | 0 | 0 | 2 | 5.7 | 3.4 | 10.6 | 7.5 | 0.4 | 2.2 | 1.01 |
| Bartolo Colon | Mtl | sp | 46 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 2 | 11.3 | 1.1 | 12.6 | 4.8 | 2.7 | 4.3 | 1.38 |
| Adam Conley* | Bos | mr | 29 | 1 | 0 | 3 | 0 | 6 | 0 | 1 | 2 | 9.4 | 3.7 | 13.1 | 9.6 | 0.8 | 2.6 | 1.46 |
| Dylan Covey | Mtl | sp | 27 | 4 | 1 | 0 | 3 | 3 | 0 | 1 | 2 | 8.0 | 4.0 | 12.3 | 6.7 | 1.1 | 1.7 | 1.34 |
| Zach Davies | KCR | sp | 26 | 2 | 4 | 0 | 6 | 1 | 0 | 0 | 2 | 8.5 | 2.1 | 11.0 | 6.1 | 1.2 | 3.0 | 1.17 |
| Austin Davis* | KCR | mr | 26 | 0 | 0 | 1 | 1 | 3 | 0 | 0 | 0 | 6.8 | 4.2 | 11.8 | 8.4 | 0.8 | 2.0 | 1.22 |
| Jorge de la Rosa* | Bal | mr | 38 | 2 | 2 | 2 | 3 | 5 | 1 | 0 | 0 | 6.7 | 4.3 | 11.4 | 8.0 | 0.5 | 1.9 | 1.22 |
| Enyel De Los Santos | Det | mr | 23 | 0 | 0 | 0 | 1 | 5 | 1 | 1 | 1 | 10.4 | 4.3 | 15.1 | 7.6 | 1.1 | 1.8 | 1.64 |
| Chris Devenski | NYY | mr | 28 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 13.5 | 3.0 | 16.5 | 10.5 | 1.5 | 3.5 | 1.83 |
| Edwin Diaz | Oak | cl | 25 | 2 | 2 | 2 | 1 | 4 | 2 | 0 | 1 | 4.6 | 3.4 | 8.1 | 13.1 | 0.5 | 3.9 | 0.89 |
| Zach Eflin | Was | sp | 25 | 12 | 2 | 2 | 7 | 3 | 0 | 1 | 2 | 9.3 | 2.1 | 11.7 | 8.9 | 0.8 | 4.3 | 1.26 |
| Roenis Elias* | ChW | mr | 30 | 1 | 0 | 1 | 2 | 2 | 0 | 2 | 2 | 9.0 | 4.4 | 13.6 | 6.6 | 0.6 | 1.5 | 1.48 |
| Nathan Eovaldi | Det | sp | 29 | 10 | 0 | 0 | 2 | 4 | 0 | 1 | 1 | 9.1 | 2.0 | 11.2 | 7.0 | 1.4 | 3.5 | 1.23 |
| Robbie Erlin* | Tor | mr | 28 | 2 | 0 | 2 | 2 | 2 | 0 | 1 | 1 | 9.8 | 1.4 | 11.4 | 7.6 | 1.4 | 5.3 | 1.25 |
| Marco Estrada | Mtl | sp | 35 | 12 | 1 | 0 | 3 | 3 | 0 | 3 | 5 | 9.6 | 2.4 | 12.2 | 6.7 | 2.2 | 2.7 | 1.34 |
| Jeurys Familia | Tor | cl | 29 | 0 | 1 | 3 | 4 | 2 | 0 | 1 | 1 | 10.8 | 3.5 | 14.8 | 9.5 | 1.0 | 2.7 | 1.59 |
| Erick Fedde | Min | sp | 26 | 5 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 9.9 | 2.2 | 12.4 | 8.7 | 1.7 | 3.9 | 1.35 |
| Heath Fillmyer | ChW | sp | 25 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.0 | 1.0 | 6.0 | 4.0 | 1.0 | 4.0 | 0.67 |
| Brandon Finnegan* | NYY | sp | 26 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11.8 | 6.8 | 18.6 | 6.8 | 5.1 | 1.0 | 2.06 |
| Jack Flaherty | NYY | sp | 23 | 2 | 2 | 3 | 13 | 9 | 0 | 0 | 5 | 6.3 | 3.3 | 10.2 | 10.6 | 1.4 | 3.2 | 1.06 |
| Brian Flynn* | Tex | mr | 29 | 0 | 0 | 2 | 5 | 9 | 0 | 1 | 0 | 13.3 | 4.7 | 18.6 | 5.1 | 1.0 | 1.1 | 2.00 |
| Mike Foltynewicz | Bal | sp | 27 | 2 | 1 | 0 | 7 | 2 | 2 | 5 | 5 | 6.2 | 2.3 | 8.8 | 9.6 | 0.4 | 4.1 | 0.94 |
| Sam Freeman* | Oak | mr | 32 | 2 | 1 | 1 | 3 | 4 | 0 | 0 | 1 | 6.2 | 5.6 | 12.4 | 9.8 | 0.8 | 1.8 | 1.31 |
| Max Fried* | KCR | mr | 25 | 1 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 6.5 | 4.9 | 11.5 | 14.3 | 1.2 | 2.9 | 1.27 |
| Carson Fulmer | NYY | sp | 25 | 0 | 1 | 0 | 2 | 3 | 0 | 0 | 0 | 10.1 | 5.8 | 16.6 | 6.8 | 2.9 | 1.2 | 1.76 |
| Michael Fulmer | Det | sp | 26 | 4 | 2 | 0 | 8 | 2 | 0 | 2 | 5 | 7.8 | 2.8 | 11.0 | 7.7 | 0.9 | 2.7 | 1.18 |
| Yovani Gallardo | Bos | sp | 33 | 3 | 3 | 1 | 2 | 0 | 0 | 0 | 3 | 10.8 | 4.0 | 15.0 | 5.6 | 1.4 | 1.4 | 1.64 |
| John Gant | KCR | sp | 26 | 6 | 1 | 2 | 5 | 7 | 0 | 3 | 4 | 6.6 | 3.3 | 10.2 | 6.9 | 0.5 | 2.1 | 1.10 |
| Jaime Garcia* | Tex | mr | 32 | 3 | 4 | 1 | 5 | 8 | 0 | 3 | 2 | 10.3 | 5.4 | 16.2 | 8.0 | 2.2 | 1.5 | 1.74 |
| Jarlin Garcia* | Was | mr | 26 | 3 | 1 | 0 | 1 | 0 | 1 | 0 | 1 | 5.9 | 2.6 | 8.7 | 7.1 | 2.2 | 2.7 | 0.95 |
| Yimi Garcia | Det | mr | 28 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 15.4 | 0.0 | 15.4 | 9.6 | 5.8 | 99.0 | 1.71 |
| Sam Gaviglio | KCR | sp | 29 | 14 | 4 | 0 | 1 | 9 | 5 | 0 | 1 | 8.4 | 2.4 | 10.9 | 7.9 | 1.2 | 3.3 | 1.20 |
| Domingo German | Cle | sp | 26 | 4 | 4 | 2 | 5 | 9 | 0 | 1 | 5 | 10.7 | 3.3 | 14.4 | 8.2 | 1.9 | 2.5 | 1.55 |
| Sean Gilmartin* | Was | mr | 29 | 2 | 0 | 2 | 2 | 0 | 0 | 1 | 1 | 4.0 | 4.0 | 8.6 | 7.7 | 1.2 | 1.9 | 0.89 |
| Lucas Giolito | ChW | sp | 24 | 16 | 3 | 3 | 15 | 11 | 0 | 2 | 6 | 9.2 | 4.8 | 14.8 | 6.8 | 1.6 | 1.4 | 1.56 |
| Zack Godley | NYY | sp | 29 | 5 | 4 | 0 | 11 | 30 | 0 | 0 | 8 | 10.3 | 4.7 | 15.6 | 9.1 | 1.0 | 1.9 | 1.67 |
| Luiz Gohara* |   | mr | 22 | 3 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 10.2 | 3.3 | 13.8 | 5.8 | 1.1 | 1.8 | 1.50 |
| Marco Gonzales* | Sea | sp | 27 | 13 | 1 | 4 | 7 | 2 | 0 | 2 | 6 | 9.4 | 2.3 | 12.0 | 7.2 | 1.0 | 3.2 | 1.29 |
| Gio Gonzalez* | LAA | sp | 33 | 5 | 1 | 3 | 2 | 9 | 0 | 0 | 5 | 9.5 | 4.4 | 14.0 | 7.9 | 1.4 | 1.8 | 1.55 |
| Sonny Gray | KCR | sp | 29 | 2 | 1 | 0 | 9 | 11 | 0 | 2 | 2 | 8.0 | 2.9 | 11.5 | 7.6 | 0.6 | 2.6 | 1.21 |
| Chad Green | NYY | mr | 28 | 2 | 1 | 1 | 2 | 2 | 0 | 0 | 2 | 7.5 | 1.5 | 9.2 | 11.0 | 1.1 | 7.3 | 1.00 |
| Shane Greene | LAA | cl | 30 | 2 | 0 | 0 | 1 | 4 | 0 | 1 | 1 | 12.1 | 3.7 | 16.0 | 10.0 | 3.2 | 2.7 | 1.76 |
| Robert Gsellman | Cle | mr | 25 | 0 | 4 | 0 | 4 | 1 | 0 | 1 | 2 | 10.5 | 1.9 | 12.9 | 7.6 | 1.4 | 3.9 | 1.38 |
| Junior Guerra | Oak | sp | 34 | 6 | 0 | 0 | 4 | 10 | 0 | 2 | 2 | 10.2 | 4.0 | 14.4 | 8.9 | 1.2 | 2.2 | 1.57 |
| Josh Hader* | NYY | mr | 25 | 3 | 2 | 2 | 4 | 0 | 2 | 1 | 1 | 4.6 | 3.6 | 8.6 | 16.8 | 1.4 | 4.6 | 0.91 |
| Brad Hand* | Oak | cl | 29 | 0 | 0 | 2 | 7 | 2 | 0 | 0 | 0 | 6.5 | 2.5 | 9.8 | 13.1 | 1.0 | 5.2 | 1.00 |
| J.A. Happ* | Sea | sp | 36 | 10 | 1 | 1 | 10 | 8 | 0 | 0 | 4 | 7.7 | 2.7 | 10.8 | 9.9 | 1.8 | 3.7 | 1.15 |
| Will Harris | Det | mr | 34 | 3 | 0 | 0 | 1 | 4 | 0 | 0 | 1 | 5.7 | 3.5 | 9.4 | 10.6 | 0.6 | 3.0 | 1.02 |
| Jeremy Hellickson | Min | sp | 32 | 1 | 0 | 1 | 11 | 1 | 0 | 1 | 4 | 9.6 | 2.0 | 12.4 | 5.6 | 1.4 | 2.8 | 1.29 |
| Heath Hembree | Det | mr | 30 | 4 | 2 | 0 | 4 | 9 | 0 | 0 | 2 | 6.8 | 4.2 | 11.5 | 10.4 | 1.1 | 2.5 | 1.23 |
| Kyle Hendricks |   | sp | 29 | 4 | 3 | 2 | 20 | 0 | 0 | 1 | 3 | 8.2 | 1.3 | 10.3 | 6.6 | 1.2 | 5.1 | 1.05 |
| Elieser Hernandez | KCR | mr | 24 | 0 | 0 | 0 | 3 | 1 | 0 | 0 | 1 | 11.0 | 3.0 | 14.6 | 4.7 | 1.6 | 1.5 | 1.56 |
| Kelvin Herrera | Sea | cl | 29 | 1 | 0 | 0 | 2 | 1 | 1 | 1 | 0 | 8.2 | 1.3 | 9.9 | 5.1 | 0.2 | 4.0 | 1.05 |
| Trevor Hildenberger | Tor | mr | 28 | 0 | 0 | 1 | 3 | 1 | 0 | 0 | 3 | 10.1 | 2.3 | 12.7 | 7.8 | 1.5 | 3.5 | 1.37 |
| Rich Hill* | ChW | sp | 39 | 4 | 4 | 0 | 8 | 1 | 2 | 1 | 5 | 8.3 | 1.9 | 10.7 | 11.0 | 1.5 | 5.7 | 1.14 |
| Tim Hill* | Mtl | mr | 29 | 2 | 0 | 1 | 2 | 2 | 0 | 1 | 1 | 10.0 | 6.7 | 17.2 | 5.1 | 1.0 | 0.8 | 1.86 |
| Yoshihisa Hirano | Bal | mr | 35 | 2 | 0 | 0 | 4 | 9 | 1 | 0 | 1 | 7.9 | 2.1 | 10.6 | 7.5 | 1.1 | 3.5 | 1.11 |
| Derek Holland* | ChW | sp | 32 | 4 | 4 | 14 | 14 | 2 | 1 | 2 | 3 | 8.7 | 4.3 | 13.6 | 9.8 | 0.8 | 2.3 | 1.44 |
| Clay Holmes | LAA | mr | 26 | 2 | 0 | 1 | 1 | 4 | 0 | 0 | 0 | 6.9 | 5.1 | 12.4 | 5.5 | 1.8 | 1.1 | 1.34 |
| Dakota Hudson | KCR | mr | 24 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 3.9 | 3.9 | 7.7 | 7.7 | 0.0 | 2.0 | 0.86 |
| Daniel Hudson | Oak | mr | 32 | 0 | 0 | 0 | 1 | 6 | 0 | 0 | 1 | 6.3 | 2.3 | 8.7 | 9.1 | 0.9 | 4.0 | 0.95 |
| Tommy Hunter | ChW | mr | 32 | 3 | 1 | 0 | 4 | 1 | 0 | 0 | 2 | 9.5 | 1.8 | 11.7 | 6.0 | 0.8 | 3.4 | 1.25 |
| Edwin Jackson | Sea | sp | 35 | 3 | 1 | 0 | 2 | 9 | 0 | 1 | 5 | 10.7 | 3.9 | 14.7 | 6.1 | 1.7 | 1.6 | 1.62 |
| Luke Jackson | Bos | mr | 27 | 1 | 2 | 1 | 3 | 10 | 1 | 1 | 3 | 11.3 | 6.3 | 18.0 | 10.5 | 0.8 | 1.7 | 1.95 |
| Josh James | Mtl | sp | 26 | 2 | 1 | 3 | 5 | 1 | 0 | 0 | 0 | 5.8 | 3.6 | 10.7 | 11.9 | 1.5 | 3.3 | 1.05 |
| Dan Jennings* | NYY | mr | 32 | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 9.0 | 3.8 | 12.8 | 6.8 | 2.3 | 1.8 | 1.42 |
| Joe Jimenez | Cle | mr | 24 | 1 | 2 | 2 | 1 | 6 | 0 | 0 | 5 | 6.1 | 3.0 | 9.3 | 10.0 | 0.7 | 3.3 | 1.02 |
| Jim Johnson | Min | mr | 36 | 0 | 2 | 2 | 1 | 4 | 0 | 0 | 0 | 7.8 | 2.3 | 10.2 | 6.4 | 1.5 | 2.8 | 1.12 |
| Pierce Johnson | Sea | mr | 28 | 0 | 0 | 2 | 1 | 1 | 0 | 2 | 0 | 6.7 | 3.3 | 10.3 | 8.0 | 0.5 | 2.4 | 1.11 |
| Nate Jones | Oak | mr | 33 | 0 | 0 | 0 | 3 | 4 | 0 | 0 | 0 | 6.8 | 3.9 | 11.5 | 8.4 | 0.3 | 2.1 | 1.19 |
| Jake Junis | KCR | sp | 26 | 3 | 5 | 0 | 17 | 9 | 0 | 1 | 4 | 7.5 | 1.8 | 10.1 | 8.2 | 1.2 | 4.5 | 1.04 |
| Tommy Kahnle | Tex | mr | 29 | 0 | 1 | 0 | 1 | 3 | 0 | 0 | 1 | 8.0 | 5.3 | 13.7 | 9.3 | 0.9 | 1.8 | 1.48 |
| Brad Keller | Cle | sp | 23 | 7 | 1 | 4 | 2 | 10 | 0 | 2 | 2 | 8.9 | 3.0 | 12.1 | 6.0 | 0.6 | 2.0 | 1.33 |
| Shawn Kelley | NYY | mr | 35 | 2 | 1 | 1 | 2 | 2 | 0 | 2 | 1 | 6.8 | 1.5 | 8.6 | 8.6 | 1.0 | 5.8 | 0.92 |
| Casey Kelly | Was | mr | 29 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 8.3 | 1.2 | 9.8 | 5.9 | 1.7 | 4.8 | 1.06 |
| Ian Kennedy | Tor | sp | 34 | 1 | 2 | 1 | 3 | 6 | 0 | 3 | 4 | 10.1 | 2.6 | 12.9 | 7.8 | 2.4 | 3.0 | 1.41 |
| Dallas Keuchel* | LAA | sp | 31 | 2 | 4 | 2 | 7 | 14 | 0 | 2 | 6 | 11.2 | 2.4 | 14.0 | 6.4 | 0.7 | 2.6 | 1.52 |
| Brandon Kintzler | Sea | mr | 34 | 0 | 2 | 2 | 8 | 1 | 0 | 0 | 7 | 8.9 | 2.7 | 12.8 | 5.3 | 1.0 | 2.0 | 1.29 |
| Matt Koch | Mtl | sp | 28 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.4 | 0.0 | 7.4 | 4.9 | 0.0 | 99.0 | 0.82 |
| Wade LeBlanc* | Oak | sp | 34 | 1 | 2 | 3 | 8 | 1 | 0 | 1 | 2 | 8.6 | 2.5 | 11.5 | 8.2 | 1.1 | 3.2 | 1.23 |
| Jose Leclerc | Det | mr | 25 | 2 | 0 | 0 | 4 | 4 | 0 | 0 | 2 | 1.9 | 3.9 | 6.4 | 12.3 | 0.0 | 3.2 | 0.65 |
| Dominic Leone | Det | mr | 27 | 1 | 1 | 2 | 1 | 1 | 0 | 0 | 1 | 11.2 | 2.6 | 14.1 | 10.3 | 1.4 | 4.0 | 1.53 |
| Jon Lester* | ChW | sp | 35 | 13 | 2 | 1 | 9 | 4 | 0 | 3 | 6 | 9.6 | 3.4 | 13.4 | 7.8 | 0.9 | 2.3 | 1.45 |
| Artie Lewicki | Bos | mr | 27 | 3 | 0 | 1 | 2 | 0 | 0 | 0 | 1 | 12.0 | 3.3 | 16.0 | 9.7 | 1.7 | 2.9 | 1.70 |
| Adam Liberatore* | ChW | mr | 32 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.0 | 0.6 | 7.6 | 10.6 | 1.8 | 18.0 | 0.85 |
| Ben Lively | Mtl | sp | 27 | 1 | 0 | 2 | 3 | 1 | 0 | 0 | 1 | 12.4 | 4.9 | 18.6 | 8.9 | 1.3 | 1.8 | 1.92 |
| Jorge Lopez | Cle | mr | 26 | 1 | 0 | 0 | 0 | 8 | 0 | 1 | 3 | 10.9 | 4.8 | 15.7 | 7.7 | 1.0 | 1.6 | 1.74 |
| Pablo Lopez | Mtl | sp | 23 | 1 | 1 | 0 | 5 | 1 | 0 | 1 | 6 | 7.3 | 1.7 | 9.5 | 6.6 | 0.8 | 3.8 | 1.01 |
| Yoan Lopez | Cle | mr | 26 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11.1 | 6.4 | 17.5 | 11.1 | 0.0 | 1.8 | 1.94 |
| Aaron Loup* | Tor | mr | 31 | 0 | 0 | 2 | 1 | 0 | 0 | 0 | 1 | 10.2 | 4.8 | 15.6 | 10.8 | 0.6 | 2.3 | 1.67 |
| Seth Lugo | Bal | mr | 29 | 1 | 3 | 0 | 4 | 1 | 0 | 3 | 2 | 9.1 | 1.5 | 11.0 | 8.5 | 0.9 | 5.7 | 1.18 |
| Jordan Lyles | Was | mr | 28 | 2 | 1 | 0 | 2 | 5 | 0 | 0 | 1 | 9.6 | 1.9 | 11.8 | 9.6 | 2.1 | 5.1 | 1.28 |
| Lance Lynn | Bos | sp | 32 | 3 | 3 | 2 | 8 | 3 | 0 | 3 | 3 | 10.4 | 4.2 | 15.0 | 9.4 | 0.5 | 2.3 | 1.62 |
| Sean Manaea* | Tex | sp | 27 | 3 | 6 | 3 | 12 | 11 | 0 | 3 | 3 | 10.1 | 1.5 | 12.2 | 6.2 | 1.9 | 4.1 | 1.29 |
| Carlos Martinez | Min | sp | 27 | 2 | 2 | 0 | 13 | 5 | 0 | 1 | 1 | 6.6 | 3.7 | 11.3 | 8.0 | 0.6 | 2.2 | 1.14 |
| Phil Maton | KCR | mr | 26 | 2 | 1 | 0 | 2 | 3 | 0 | 1 | 1 | 10.5 | 1.9 | 13.0 | 11.1 | 1.3 | 5.9 | 1.38 |
| Trevor May | NYY | mr | 29 | 0 | 0 | 0 | 1 | 2 | 0 | 0 | 0 | 4.0 | 1.4 | 5.8 | 11.5 | 1.8 | 8.0 | 0.60 |
| Mike Mayers | Bos | mr | 27 | 0 | 0 | 1 | 2 | 3 | 0 | 0 | 3 | 12.1 | 3.7 | 16.1 | 9.3 | 2.1 | 2.5 | 1.75 |
| Tim Mayza* | Tex | mr | 27 | 0 | 0 | 0 | 1 | 0 | 0 | 2 | 1 | 9.4 | 3.1 | 12.8 | 10.6 | 0.5 | 3.4 | 1.39 |
| Zach McAllister | Tor | mr | 31 | 0 | 0 | 0 | 2 | 1 | 0 | 0 | 1 | 15.3 | 2.9 | 19.4 | 7.6 | 2.3 | 2.6 | 2.02 |
| Brandon McCarthy | Mtl | sp | 35 | 1 | 3 | 0 | 1 | 3 | 0 | 0 | 1 | 18.2 | 4.5 | 22.8 | 6.8 | 4.0 | 1.5 | 2.52 |
| Kevin McCarthy | LAA | mr | 27 | 1 | 0 | 2 | 3 | 0 | 0 | 0 | 3 | 10.0 | 1.5 | 11.8 | 6.4 | 1.6 | 4.4 | 1.27 |
| T.J. McFarland* |   | mr | 30 | 1 | 1 | 4 | 2 | 2 | 0 | 1 | 0 | 7.8 | 2.5 | 10.5 | 4.6 | 0.4 | 1.8 | 1.14 |
| Jake McGee* | Min | mr | 32 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 11.0 | 5.0 | 16.0 | 8.0 | 0.0 | 1.6 | 1.78 |
| Mark Melancon | Min | mr | 34 | 0 | 0 | 1 | 1 | 3 | 0 | 0 | 1 | 7.1 | 1.3 | 8.7 | 7.7 | 0.0 | 5.8 | 0.94 |
| Yohander Mendez* | Oak | sp | 24 | 0 | 2 | 0 | 2 | 1 | 0 | 4 | 4 | 8.3 | 5.4 | 14.1 | 5.6 | 1.0 | 1.0 | 1.53 |
| Daniel Mengden | Was | sp | 26 | 4 | 2 | 1 | 7 | 7 | 0 | 1 | 1 | 9.9 | 2.7 | 13.1 | 5.8 | 2.0 | 2.2 | 1.40 |
| Keynan Middleton | Cle | mr | 25 | 0 | 0 | 0 | 0 | 2 | 0 | 1 | 2 | 10.0 | 3.7 | 13.7 | 10.8 | 1.2 | 2.9 | 1.52 |
| Wade Miley* | Oak | sp | 32 | 2 | 3 | 0 | 6 | 2 | 0 | 1 | 2 | 9.2 | 2.8 | 12.5 | 5.4 | 0.7 | 1.9 | 1.34 |
| Andrew Miller* | Tor | mr | 34 | 1 | 0 | 7 | 10 | 0 | 0 | 0 | 0 | 9.0 | 5.1 | 16.5 | 11.2 | 0.5 | 2.2 | 1.57 |
| Justin Miller | Bal | mr | 32 | 3 | 1 | 0 | 3 | 0 | 0 | 0 | 1 | 6.0 | 2.4 | 8.8 | 9.7 | 1.7 | 4.1 | 0.92 |
| Shelby Miller | Tex | sp | 28 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 24.5 | 2.5 | 27.0 | 8.4 | 6.8 | 3.3 | 3.00 |
| Alec Mills | ChW | mr | 27 | 5 | 1 | 0 | 1 | 3 | 0 | 1 | 1 | 5.4 | 2.9 | 8.6 | 9.0 | 0.6 | 3.1 | 0.93 |
| Juan Minaya | Oak | mr | 28 | 6 | 1 | 0 | 2 | 6 | 0 | 0 | 1 | 5.3 | 3.8 | 9.4 | 10.5 | 0.7 | 2.8 | 1.01 |
| Mike Minor* | Was | sp | 31 | 8 | 1 | 2 | 11 | 3 | 1 | 1 | 5 | 8.7 | 2.4 | 11.7 | 8.0 | 1.5 | 3.3 | 1.24 |
| A.J. Minter* | LAA | mr | 25 | 6 | 1 | 2 | 1 | 6 | 0 | 1 | 2 | 10.8 | 4.0 | 15.0 | 9.7 | 1.1 | 2.4 | 1.65 |
| Ariel Miranda* | Was | sp | 30 | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 2 | 15.6 | 7.1 | 22.7 | 6.4 | 0.0 | 0.9 | 2.53 |
| Bryan Mitchell | Mtl | sp | 28 | 4 | 3 | 1 | 2 | 3 | 0 | 1 | 5 | 8.8 | 4.1 | 13.1 | 3.4 | 1.6 | 0.8 | 1.43 |
| Jordan Montgomery* | Bal | sp | 26 | 0 | 0 | 0 | 0 | 2 | 0 | 1 | 1 | 7.8 | 4.9 | 12.7 | 6.9 | 0.7 | 1.4 | 1.41 |
| Matt Moore* | Tex | mr | 30 | 0 | 1 | 1 | 4 | 6 | 0 | 0 | 3 | 11.9 | 3.5 | 15.7 | 7.6 | 1.8 | 2.2 | 1.71 |
| Adam Morgan* | Det | mr | 29 | 4 | 0 | 1 | 2 | 1 | 1 | 0 | 0 | 6.3 | 3.0 | 9.6 | 11.4 | 0.6 | 3.8 | 1.03 |
| Reyes Moronta |   | mr | 26 | 1 | 3 | 3 | 2 | 5 | 0 | 1 | 3 | 5.2 | 4.4 | 9.9 | 11.3 | 0.5 | 2.6 | 1.07 |
| Gabriel Moya* |   | mr | 24 | 2 | 0 | 0 | 3 | 2 | 0 | 0 | 1 | 7.7 | 2.3 | 10.8 | 7.7 | 1.6 | 3.3 | 1.12 |
| Peter Moylan | Mtl | mr | 40 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 12.1 | 1.3 | 13.5 | 4.0 | 1.3 | 3.0 | 1.50 |
| Hector Neris | Det | mr | 30 | 2 | 1 | 1 | 0 | 4 | 0 | 1 | 2 | 9.6 | 4.0 | 13.6 | 12.7 | 2.4 | 3.2 | 1.51 |
| Pat Neshek | Min | mr | 38 | 1 | 0 | 3 | 0 | 1 | 0 | 0 | 1 | 6.3 | 1.8 | 8.1 | 7.0 | 0.4 | 3.8 | 0.90 |
| Juan Nicasio | Tex | mr | 32 | 1 | 0 | 0 | 2 | 0 | 0 | 0 | 2 | 10.8 | 2.3 | 13.6 | 12.1 | 0.8 | 5.2 | 1.46 |
| Bud Norris | Min | cl | 34 | 3 | 0 | 0 | 11 | 9 | 0 | 1 | 4 | 7.9 | 2.4 | 11.8 | 9.9 | 1.8 | 4.2 | 1.14 |
| James Norwood | ChW | mr | 25 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 11.8 | 5.9 | 18.6 | 6.8 | 0.8 | 1.1 | 1.97 |
| Vidal Nuno* | Min | mr | 31 | 1 | 1 | 1 | 2 | 2 | 1 | 0 | 0 | 7.6 | 2.5 | 10.7 | 6.9 | 1.3 | 2.7 | 1.13 |
| Darren O'Day | Sea | mr | 36 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3.7 | 0.0 | 3.7 | 11.0 | 0.0 | 99.0 | 0.41 |
| Trevor Oaks | Oak | sp | 26 | 2 | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 11.8 | 4.3 | 16.1 | 5.7 | 0.5 | 1.3 | 1.79 |
| Jake Odorizzi | Sea | sp | 29 | 14 | 3 | 3 | 13 | 0 | 0 | 3 | 10 | 9.6 | 3.5 | 13.8 | 9.1 | 1.4 | 2.6 | 1.46 |
| Seung Hwan Oh | Tor | mr | 36 | 1 | 0 | 7 | 5 | 3 | 0 | 1 | 0 | 9.4 | 4.3 | 14.3 | 9.8 | 1.5 | 2.3 | 1.52 |
| Shohei Ohtani | ChW | dh | 24 | 2 | 1 | 0 | 4 | 6 | 0 | 3 | 0 | 9.3 | 5.8 | 15.6 | 10.2 | 1.0 | 1.8 | 1.68 |
| Steven Okert* | Det | mr | 27 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 18.0 | 2.3 | 20.3 | 6.8 | 4.5 | 3.0 | 2.25 |
| Roberto Osuna | Tor | cl | 24 | 0 | 0 | 8 | 7 | 4 | 0 | 0 | 3 | 6.8 | 2.5 | 10.8 | 7.8 | 0.4 | 3.1 | 1.03 |
| Dan Otero | KCR | mr | 34 | 0 | 0 | 3 | 3 | 0 | 1 | 0 | 1 | 11.0 | 0.9 | 12.5 | 7.6 | 0.9 | 8.8 | 1.32 |
| Emilio Pagan | Was | mr | 28 | 3 | 1 | 2 | 1 | 7 | 0 | 0 | 3 | 13.4 | 4.5 | 18.1 | 9.4 | 2.3 | 2.1 | 1.99 |
| Thomas Pannone* | Oak | sp | 25 | 1 | 0 | 1 | 2 | 2 | 0 | 2 | 0 | 9.3 | 2.8 | 12.4 | 6.1 | 1.6 | 2.2 | 1.35 |
| Blake Parker | Min | mr | 34 | 3 | 0 | 0 | 4 | 8 | 0 | 1 | 1 | 9.0 | 2.3 | 11.8 | 8.7 | 1.9 | 3.8 | 1.25 |
| James Paxton* | Sea | sp | 30 | 3 | 2 | 1 | 4 | 5 | 0 | 2 | 3 | 7.7 | 2.7 | 10.6 | 11.2 | 0.9 | 4.1 | 1.16 |
| Brad Peacock | Bal | mr | 31 | 0 | 1 | 5 | 3 | 1 | 0 | 1 | 2 | 9.5 | 4.1 | 14.1 | 12.5 | 1.8 | 3.0 | 1.52 |
| Freddy Peralta | Min | sp | 23 | 1 | 0 | 4 | 4 | 3 | 3 | 1 | 4 | 6.3 | 4.5 | 11.1 | 12.6 | 1.0 | 2.8 | 1.20 |
| Luis Perdomo | Mtl | sp | 26 | 2 | 1 | 4 | 5 | 3 | 0 | 0 | 0 | 10.3 | 4.1 | 15.0 | 7.4 | 0.9 | 1.8 | 1.60 |
| Cionel Perez* | Det | mr | 23 | 2 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 2.7 | 6.1 | 9.4 | 10.1 | 1.3 | 1.7 | 0.97 |
| Yusmeiro Petit | LAA | mr | 34 | 3 | 3 | 0 | 2 | 3 | 0 | 1 | 5 | 8.5 | 1.3 | 10.0 | 6.4 | 1.2 | 4.8 | 1.09 |
| Nick Pivetta | Was | sp | 26 | 12 | 3 | 0 | 6 | 4 | 0 | 3 | 6 | 8.7 | 2.5 | 11.4 | 10.6 | 1.6 | 4.3 | 1.24 |
| Drew Pomeranz* | Sea | mr | 30 | 0 | 0 | 0 | 1 | 2 | 0 | 0 | 1 | 9.9 | 6.8 | 17.1 | 7.6 | 2.3 | 1.1 | 1.85 |
| Daniel Poncedeleon | NYY | mr | 27 | 2 | 0 | 0 | 2 | 2 | 0 | 0 | 2 | 7.8 | 2.6 | 10.8 | 7.6 | 0.6 | 2.9 | 1.16 |
| Ryan Pressly | Was | mr | 30 | 3 | 0 | 0 | 4 | 11 | 0 | 0 | 1 | 8.0 | 1.7 | 10.2 | 12.7 | 0.5 | 7.3 | 1.08 |
| Erasmo Ramirez | Tor | sp | 29 | 1 | 1 | 0 | 7 | 1 | 0 | 0 | 2 | 9.0 | 1.5 | 11.3 | 6.6 | 2.2 | 4.3 | 1.17 |
| Noe Ramirez | Tex | mr | 29 | 2 | 0 | 4 | 3 | 3 | 0 | 0 | 3 | 9.7 | 3.4 | 13.3 | 9.6 | 1.5 | 2.8 | 1.45 |
| Yefry Ramirez | KCR | sp | 25 | 1 | 1 | 2 | 1 | 4 | 0 | 1 | 0 | 7.5 | 3.8 | 11.4 | 7.7 | 0.7 | 2.0 | 1.25 |
| A.J. Ramos | Mtl | mr | 32 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 9.8 | 6.1 | 17.2 | 6.1 | 2.5 | 1.0 | 1.77 |
| Cody Reed* | Tex | mr | 26 | 5 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 11.6 | 4.8 | 16.4 | 9.9 | 0.5 | 2.1 | 1.82 |
| Garrett Richards |   | sp | 31 | 3 | 2 | 0 | 5 | 16 | 0 | 2 | 3 | 10.6 | 4.8 | 15.8 | 9.5 | 2.0 | 2.0 | 1.71 |
| Trevor Richards | Mtl | sp | 26 | 9 | 5 | 2 | 5 | 7 | 1 | 2 | 6 | 9.2 | 2.7 | 12.2 | 9.1 | 1.4 | 3.4 | 1.32 |
| Tanner Roark | Bal | sp | 32 | 3 | 2 | 1 | 11 | 2 | 0 | 2 | 2 | 8.9 | 2.6 | 12.0 | 7.9 | 0.9 | 3.1 | 1.28 |
| David Robertson | NYY | mr | 34 | 1 | 0 | 1 | 0 | 0 | 0 | 2 | 1 | 5.5 | 2.9 | 8.4 | 11.1 | 1.1 | 3.8 | 0.93 |
| Hansel Robles | Min | mr | 28 | 1 | 1 | 2 | 0 | 0 | 2 | 0 | 1 | 10.1 | 3.2 | 13.3 | 8.6 | 0.9 | 2.7 | 1.48 |
| Fernando Rodney | Bos | cl | 42 | 5 | 0 | 0 | 2 | 9 | 0 | 0 | 5 | 10.4 | 3.7 | 14.4 | 9.1 | 0.7 | 2.5 | 1.57 |
| Dereck Rodriguez | KCR | sp | 27 | 3 | 3 | 0 | 6 | 0 | 0 | 0 | 4 | 7.4 | 1.7 | 9.4 | 6.9 | 0.8 | 4.1 | 1.01 |
| Eduardo Rodriguez* | Bos | sp | 26 | 3 | 4 | 0 | 6 | 3 | 0 | 2 | 1 | 9.6 | 3.2 | 13.1 | 10.2 | 1.2 | 3.2 | 1.42 |
| Jefry Rodriguez | KCR | sp | 25 | 4 | 1 | 4 | 2 | 1 | 0 | 0 | 0 | 8.9 | 5.7 | 15.1 | 6.4 | 1.4 | 1.1 | 1.63 |
| Richard Rodriguez | Was | mr | 29 | 1 | 0 | 0 | 4 | 11 | 0 | 0 | 0 | 8.8 | 2.5 | 11.8 | 11.3 | 0.7 | 4.5 | 1.26 |
| Chaz Roe | NYY | mr | 32 | 6 | 0 | 7 | 12 | 2 | 0 | 0 | 1 | 8.5 | 4.0 | 14.5 | 9.0 | 2.0 | 2.3 | 1.39 |
| Taylor Rogers* | Sea | mr | 28 | 2 | 0 | 0 | 4 | 0 | 0 | 1 | 0 | 6.1 | 0.8 | 7.4 | 10.1 | 0.6 | 12.2 | 0.77 |
| Sergio Romo | Cle | mr | 36 | 2 | 1 | 0 | 7 | 0 | 0 | 0 | 3 | 10.2 | 3.6 | 14.7 | 9.0 | 1.7 | 2.5 | 1.54 |
| Randy Rosario* | Cle | mr | 25 | 0 | 0 | 5 | 0 | 1 | 0 | 0 | 1 | 11.7 | 4.7 | 16.4 | 7.2 | 0.4 | 1.5 | 1.82 |
| Chris Rusin* |   | mr | 32 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 6.9 | 3.4 | 10.8 | 5.9 | 2.0 | 1.7 | 1.15 |
| Connor Sadzeck | ChW | mr | 27 | 0 | 0 | 0 | 0 | 1 | 2 | 1 | 0 | 13.5 | 11.7 | 25.2 | 6.3 | 0.9 | 0.5 | 2.80 |
| Jeff Samardzija | Tor | sp | 34 | 3 | 0 | 1 | 3 | 3 | 0 | 2 | 4 | 9.7 | 5.8 | 15.9 | 5.2 | 1.2 | 0.9 | 1.72 |
| Aaron Sanchez | Min | sp | 26 | 4 | 0 | 1 | 2 | 0 | 0 | 0 | 1 | 7.9 | 4.0 | 12.2 | 7.2 | 0.9 | 1.8 | 1.32 |
| Anibal Sanchez | Min | sp | 35 | 12 | 1 | 4 | 4 | 4 | 0 | 1 | 5 | 8.4 | 2.5 | 11.1 | 8.1 | 1.4 | 3.3 | 1.21 |
| Edgar Santana | Oak | mr | 27 | 2 | 0 | 2 | 3 | 4 | 0 | 0 | 6 | 7.2 | 1.8 | 9.4 | 7.5 | 0.9 | 4.2 | 1.00 |
| Jaime Schultz | Min | mr | 28 | 1 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 7.6 | 4.7 | 12.2 | 13.0 | 1.1 | 2.8 | 1.36 |
| Tanner Scott* | KCR | mr | 24 | 3 | 1 | 1 | 2 | 1 | 0 | 1 | 0 | 5.3 | 6.4 | 12.1 | 13.6 | 1.1 | 2.1 | 1.29 |
| Luis Severino | NYY | sp | 25 | 6 | 0 | 0 | 3 | 9 | 0 | 1 | 6 | 8.8 | 2.7 | 11.6 | 10.5 | 1.3 | 4.0 | 1.28 |
| Justus Sheffield* | Det | mr | 23 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.0 | 9.0 | 9.0 | 0.0 | 0.0 | 0.0 | 1.00 |
| Jimmie Sherfy | Det | mr | 27 | 4 | 0 | 1 | 3 | 1 | 0 | 0 | 1 | 4.2 | 8.4 | 14.0 | 10.7 | 1.9 | 1.3 | 1.40 |
| James Shields | Bos | sp | 37 | 14 | 3 | 0 | 10 | 3 | 1 | 1 | 3 | 7.6 | 3.2 | 11.4 | 6.2 | 0.9 | 1.9 | 1.21 |
| Matt Shoemaker | LAA | sp | 32 | 1 | 0 | 0 | 3 | 7 | 0 | 1 | 0 | 11.1 | 2.5 | 14.1 | 9.8 | 1.3 | 4.0 | 1.51 |
| Chasen Shreve* | KCR | mr | 28 | 0 | 0 | 3 | 1 | 0 | 0 | 0 | 0 | 8.2 | 3.9 | 12.3 | 8.9 | 1.7 | 2.3 | 1.34 |
| Lucas Sims | Det | mr | 25 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 10.3 | 5.9 | 16.7 | 7.6 | 0.5 | 1.3 | 1.80 |
| Tony Sipp* | ChW | mr | 35 | 1 | 2 | 2 | 2 | 3 | 0 | 0 | 4 | 6.0 | 5.8 | 12.2 | 10.5 | 0.0 | 1.8 | 1.32 |
| Tyler Skaggs* | Tex | sp | 27 | 1 | 1 | 1 | 4 | 2 | 0 | 2 | 3 | 11.0 | 2.5 | 13.7 | 9.7 | 1.3 | 3.9 | 1.50 |
| Carson Smith | NYY | mr | 29 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 18.8 | 3.5 | 22.3 | 10.6 | 3.5 | 3.0 | 2.48 |
| Drew Smith | Sea | mr | 25 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 27.0 | 0.0 | 27.0 | 3.9 | 0.0 | 99.0 | 3.00 |
| Chad Sobotka | Tor | mr | 25 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 5.0 | 6.3 | 11.3 | 10.0 | 1.9 | 1.6 | 1.26 |
| Joakim Soria | Oak | mr | 35 | 5 | 3 | 2 | 1 | 2 | 2 | 0 | 0 | 5.9 | 2.7 | 8.7 | 10.9 | 0.3 | 4.0 | 0.95 |
| Ryne Stanek | Bos | mr | 27 | 3 | 0 | 0 | 1 | 7 | 0 | 0 | 2 | 6.3 | 1.7 | 8.2 | 12.5 | 1.2 | 7.2 | 0.90 |
| Drew Steckenrider | NYY | mr | 28 | 0 | 1 | 0 | 1 | 0 | 0 | 1 | 2 | 7.8 | 2.6 | 10.5 | 9.9 | 0.9 | 3.8 | 1.16 |
| Brock Stewart | Det | mr | 27 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 2 | 17.1 | 8.6 | 25.7 | 7.9 | 5.3 | 0.9 | 2.85 |
| Kohl Stewart | Tor | sp | 24 | 1 | 0 | 0 | 2 | 4 | 0 | 1 | 0 | 9.4 | 5.8 | 16.2 | 7.2 | 0.0 | 1.2 | 1.70 |
| Robert Stock | Mtl | mr | 29 | 1 | 0 | 4 | 3 | 5 | 2 | 0 | 2 | 9.6 | 3.4 | 13.6 | 10.4 | 0.2 | 3.1 | 1.44 |
| Dan Straily | Oak | sp | 30 | 1 | 2 | 0 | 10 | 1 | 0 | 0 | 4 | 7.5 | 3.1 | 11.1 | 6.6 | 1.9 | 2.1 | 1.18 |
| Daniel Stumpf* | Cle | mr | 28 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 12.8 | 6.0 | 18.8 | 9.8 | 1.5 | 1.6 | 2.08 |
| Andrew Suarez* | Bos | sp | 26 | 4 | 2 | 5 | 9 | 8 | 0 | 1 | 4 | 9.8 | 2.2 | 12.4 | 7.3 | 1.0 | 3.4 | 1.33 |
| Noah Syndergaard | Tor | sp | 26 | 7 | 1 | 2 | 8 | 4 | 0 | 2 | 2 | 8.8 | 1.7 | 10.9 | 7.9 | 0.8 | 4.6 | 1.17 |
| Jameson Taillon | Min | sp | 27 | 3 | 2 | 2 | 11 | 3 | 0 | 0 | 5 | 9.4 | 1.9 | 11.8 | 8.9 | 0.9 | 4.7 | 1.26 |
| Julio Teheran | Bal | sp | 28 | 11 | 1 | 1 | 8 | 0 | 2 | 2 | 2 | 7.9 | 4.2 | 12.5 | 9.4 | 1.7 | 2.3 | 1.34 |
| Jake Thompson | Tex | mr | 25 | 2 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 5.6 | 8.2 | 14.3 | 10.2 | 0.5 | 1.3 | 1.53 |
| Blake Treinen | KCR | cl | 31 | 1 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 5.8 | 1.8 | 7.7 | 11.1 | 0.0 | 6.1 | 0.85 |
| Lou Trivino | Cle | mr | 27 | 4 | 2 | 3 | 5 | 6 | 0 | 1 | 1 | 6.6 | 2.9 | 10.1 | 10.0 | 1.0 | 3.5 | 1.06 |
| Nick Tropeano | Was | sp | 28 | 5 | 1 | 1 | 7 | 5 | 0 | 1 | 2 | 7.5 | 3.3 | 11.4 | 7.9 | 1.9 | 2.4 | 1.20 |
| Sam Tuivailala | KCR | mr | 26 | 0 | 1 | 1 | 1 | 4 | 0 | 0 | 1 | 12.5 | 2.9 | 15.8 | 8.7 | 0.8 | 3.0 | 1.71 |
| Jose Urena | Det | sp | 27 | 5 | 5 | 0 | 23 | 0 | 2 | 1 | 8 | 8.3 | 2.2 | 11.6 | 6.9 | 1.3 | 3.1 | 1.16 |
| Felipe Vazquez* | Cle | cl | 27 | 0 | 0 | 2 | 4 | 1 | 0 | 1 | 0 | 7.0 | 1.8 | 9.4 | 10.8 | 0.7 | 5.8 | 0.98 |
| Pat Venditte* | Oak | mr | 34 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 5.1 | 1.5 | 8.8 | 5.8 | 0.7 | 4.0 | 0.73 |
| Justin Verlander | Cle | sp | 36 | 7 | 3 | 2 | 9 | 3 | 4 | 2 | 3 | 8.0 | 1.9 | 10.3 | 12.5 | 1.2 | 6.6 | 1.10 |
| Arodys Vizcaino |   | cl | 28 | 0 | 1 | 5 | 1 | 4 | 0 | 2 | 1 | 9.9 | 5.8 | 15.9 | 10.3 | 1.8 | 1.8 | 1.74 |
| Michael Wacha | Tex | sp | 27 | 2 | 3 | 0 | 6 | 2 | 1 | 2 | 2 | 8.5 | 4.8 | 13.9 | 7.4 | 0.7 | 1.5 | 1.48 |
| Adam Wainwright | Cle | sp | 37 | 6 | 0 | 1 | 5 | 0 | 0 | 1 | 4 | 10.4 | 5.1 | 16.6 | 7.0 | 0.7 | 1.4 | 1.71 |
| Taijuan Walker | Sea | sp | 26 | 0 | 0 | 1 | 1 | 2 | 1 | 0 | 2 | 9.8 | 4.9 | 14.9 | 6.7 | 0.5 | 1.4 | 1.63 |
| Adam Warren | Bal | mr | 31 | 3 | 0 | 0 | 5 | 6 | 0 | 1 | 0 | 10.5 | 3.5 | 14.8 | 8.5 | 0.5 | 2.4 | 1.56 |
| J.B. Wendelken | ChW | mr | 26 | 3 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 4.0 | 3.6 | 7.6 | 7.6 | 1.3 | 2.1 | 0.85 |
| Taylor Williams | LAA | mr | 27 | 1 | 1 | 3 | 2 | 4 | 0 | 1 | 4 | 8.5 | 4.6 | 13.4 | 9.2 | 0.7 | 2.0 | 1.45 |
| Trevor Williams | LAA | sp | 27 | 7 | 3 | 0 | 6 | 3 | 0 | 2 | 4 | 8.3 | 3.2 | 11.8 | 6.9 | 0.7 | 2.2 | 1.28 |
| Alex Wilson | ChW | mr | 32 | 2 | 1 | 0 | 3 | 4 | 0 | 0 | 3 | 7.1 | 1.9 | 9.4 | 5.7 | 0.7 | 2.9 | 1.00 |
| Justin Wilson* | Bal | mr | 31 | 0 | 0 | 2 | 4 | 4 | 1 | 2 | 1 | 8.3 | 6.0 | 14.9 | 10.7 | 0.9 | 1.8 | 1.59 |
| Trey Wingenter | Tor | mr | 25 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 10.1 | 8.2 | 18.3 | 12.4 | 3.2 | 1.5 | 2.03 |
| Daniel Winkler | ChW | mr | 29 | 1 | 0 | 8 | 5 | 3 | 0 | 1 | 0 | 7.3 | 3.4 | 11.3 | 10.2 | 0.5 | 3.0 | 1.19 |
| Nick Wittgren | Sea | mr | 28 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 1 | 4.5 | 2.9 | 7.4 | 10.1 | 0.3 | 3.5 | 0.82 |
| Alex Wood* | Tor | sp | 28 | 2 | 1 | 3 | 12 | 4 | 1 | 3 | 4 | 8.8 | 2.5 | 11.9 | 8.7 | 1.6 | 3.5 | 1.25 |
| Blake Wood |   | mr | 33 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 7.1 | 5.1 | 12.2 | 7.1 | 0.0 | 1.4 | 1.36 |
| Hunter Wood | Tor | mr | 25 | 1 | 0 | 0 | 1 | 2 | 2 | 1 | 3 | 10.9 | 2.7 | 13.7 | 9.0 | 1.7 | 3.3 | 1.51 |
| Brandon Woodruff | Cle | mr | 26 | 1 | 4 | 0 | 5 | 0 | 0 | 0 | 1 | 8.9 | 1.6 | 11.3 | 10.5 | 0.9 | 6.7 | 1.17 |
| Steven Wright | Tex | mr | 34 | 1 | 0 | 0 | 6 | 0 | 0 | 1 | 1 | 5.6 | 4.1 | 10.6 | 5.6 | 0.4 | 1.4 | 1.08 |
| Jimmy Yacabonis | KCR | sp | 27 | 0 | 1 | 1 | 5 | 5 | 0 | 0 | 1 | 4.5 | 5.0 | 11.0 | 5.6 | 0.6 | 1.1 | 1.05 |
| Ryan Yarbrough* | Mtl | mr | 27 | 7 | 3 | 6 | 8 | 0 | 0 | 2 | 2 | 9.6 | 2.5 | 12.5 | 7.3 | 1.3 | 3.0 | 1.34 |
| Daniel Zamora* | Tex | mr | 26 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.5 | 5.7 | 14.2 | 9.9 | 0.0 | 1.8 | 1.58 |
| Jordan Zimmermann | Bal | sp | 33 | 4 | 3 | 1 | 3 | 3 | 0 | 3 | 7 | 10.7 | 2.3 | 13.2 | 7.7 | 2.3 | 3.4 | 1.45 |
| Analytical |
| Name | Team | P | Age | OPS | BIP | BABIP | TBW | TBW/BF | TBWH | TBWH/BF | RC | RC27 | RCERA | CERA |
| Matt Albers | Det | mr | 36 | .858 | 21 | .238 | 18 | .581 | 18 | .581 | 4.1 | 4.8 | 4.30 | 4.89 |
| Scott Alexander* | Tex | mr | 29 | .760 | 194 | .309 | 131 | .463 | 135 | .477 | 31.9 | 4.1 | 3.71 | 4.02 |
| Cody Allen | LAA | cl | 30 | .667 | 170 | .235 | 135 | .441 | 136 | .444 | 32.3 | 4.0 | 3.64 | 3.66 |
| Dan Altavilla | Cle | mr | 26 | .631 | 55 | .164 | 39 | .415 | 42 | .447 | 8.7 | 3.5 | 3.24 | 3.11 |
| Jose Alvarez* | LAA | mr | 30 | .649 | 61 | .295 | 30 | .361 | 32 | .386 | 7.9 | 3.6 | 3.38 | 3.31 |
| Brett Anderson* | Tor | sp | 31 | .747 | 343 | .303 | 194 | .447 | 199 | .459 | 52.3 | 4.6 | 4.29 | 4.18 |
| Chase Anderson | Det | sp | 31 | .781 | 508 | .238 | 383 | .498 | 396 | .515 | 101.4 | 5.0 | 4.61 | 4.62 |
| Tanner Anderson | Cle | mr | 26 | 1.231 | 22 | .500 | 21 | .750 | 21 | .750 | 9.8 | 18.8 | 19.76 | 18.53 |
| Victor Arano | LAA | mr | 24 | .473 | 129 | .225 | 55 | .289 | 56 | .295 | 9.7 | 1.8 | 1.58 | 1.42 |
| Pedro Araujo | Tex | mr | 25 | .941 | 14 | .357 | 14 | .609 | 14 | .609 | 4.3 | 7.7 | 8.00 | 8.24 |
| Chris Archer | LAA | sp | 30 | .804 | 440 | .345 | 346 | .502 | 352 | .511 | 98.5 | 5.6 | 5.06 | 4.72 |
| Shawn Armstrong | NYY | mr | 28 | .554 | 38 | .237 | 18 | .333 | 19 | .352 | 3.5 | 2.2 | 1.99 | 1.75 |
| John Axford | ChW | mr | 36 | .550 | 165 | .255 | 89 | .340 | 91 | .347 | 17.9 | 2.4 | 2.22 | 2.11 |
| Pedro Baez | Sea | mr | 31 | .670 | 156 | .308 | 102 | .416 | 102 | .416 | 26.4 | 4.2 | 3.77 | 3.58 |
| Sandy Baez | ChW | mr | 25 | .765 | 32 | .219 | 26 | .510 | 26 | .510 | 6.4 | 4.8 | 4.29 | 4.90 |
| Homer Bailey | KCR | sp | 33 | .928 | 312 | .340 | 241 | .570 | 248 | .586 | 78.5 | 7.7 | 7.02 | 6.69 |
| Danny Barnes | Tex | mr | 29 | 1.015 | 87 | .322 | 90 | .672 | 91 | .679 | 29.5 | 9.4 | 8.74 | 7.74 |
| Jacob Barnes | Tex | mr | 29 | .783 | 155 | .316 | 108 | .486 | 109 | .491 | 30.0 | 5.3 | 4.79 | 4.86 |
| Kyle Barraclough | Cle | mr | 29 | .868 | 64 | .250 | 66 | .537 | 72 | .585 | 20.7 | 6.9 | 6.13 | 5.87 |
| Anthony Bass | Oak | mr | 31 | .824 | 45 | .356 | 28 | .491 | 28 | .491 | 7.3 | 4.7 | 4.30 | 5.47 |
| Chris Bassitt | ChW | sp | 30 | .856 | 196 | .332 | 156 | .522 | 161 | .538 | 51.9 | 7.6 | 6.86 | 7.05 |
| Trevor Bauer | Min | sp | 28 | .509 | 479 | .251 | 268 | .316 | 276 | .326 | 53.0 | 2.2 | 1.99 | 1.79 |
| Tyler Beede | NYY | sp | 26 | .942 | 74 | .378 | 65 | .570 | 66 | .579 | 22.7 | 9.0 | 7.99 | 7.65 |
| Jalen Beeks* | Mtl | mr | 25 | .838 | 143 | .294 | 126 | .525 | 132 | .550 | 35.8 | 6.0 | 5.40 | 5.23 |
| Dellin Betances | Sea | mr | 31 | .538 | 128 | .289 | 97 | .337 | 102 | .354 | 20.2 | 2.5 | 2.29 | 1.98 |
| Chad Bettis | Bos | sp | 30 | .815 | 491 | .279 | 338 | .506 | 347 | .519 | 94.5 | 5.6 | 5.06 | 5.21 |
| Jesse Biddle* | KCR | mr | 27 | .727 | 103 | .320 | 84 | .459 | 86 | .470 | 19.4 | 3.9 | 3.54 | 3.95 |
| Ty Blach* | Bal | mr | 28 | .739 | 473 | .311 | 264 | .434 | 268 | .441 | 69.8 | 4.4 | 4.00 | 4.21 |
| Ray Black | Det | mr | 29 | .907 | 34 | .265 | 52 | .650 | 52 | .650 | 13.0 | 6.0 | 5.43 | 4.24 |
| Paul Blackburn | LAA | sp | 25 | .609 | 146 | .288 | 68 | .347 | 70 | .357 | 16.5 | 3.0 | 2.78 | 2.69 |
| Richard Bleier* | Bal | mr | 32 | .651 | 106 | .311 | 44 | .364 | 44 | .364 | 9.8 | 2.8 | 2.64 | 3.00 |
| Jerry Blevins* | Mtl | mr | 35 | .732 | 35 | .200 | 35 | .486 | 37 | .514 | 8.3 | 4.4 | 4.05 | 4.00 |
| Ryan Borucki* | Sea | sp | 25 | .727 | 211 | .289 | 127 | .452 | 128 | .456 | 33.8 | 4.7 | 4.28 | 4.04 |
| Matt Bowman | Mtl | mr | 28 | .691 | 63 | .397 | 41 | .402 | 41 | .402 | 10.9 | 4.1 | 3.67 | 4.31 |
| Chasen Bradford | Bos | mr | 29 | .811 | 215 | .312 | 146 | .477 | 156 | .510 | 46.0 | 6.0 | 5.35 | 5.30 |
| Archie Bradley | Bal | mr | 26 | .650 | 217 | .258 | 136 | .418 | 137 | .422 | 30.2 | 3.3 | 3.02 | 2.67 |
| John Brebbia |   | mr | 29 | .518 | 151 | .232 | 77 | .326 | 77 | .326 | 14.6 | 2.1 | 1.96 | 1.69 |
| Parker Bridwell | Bos | mr | 27 | 1.779 | 29 | .517 | 43 | 1.103 | 43 | 1.103 | 22.9 | 36.3 | 32.70 | 35.40 |
| Zach Britton* | Tex | mr | 31 | .679 | 118 | .237 | 88 | .433 | 91 | .448 | 20.8 | 4.0 | 3.58 | 4.11 |
| Clay Buchholz |   | sp | 34 | .685 | 416 | .284 | 239 | .414 | 243 | .421 | 56.5 | 3.5 | 3.22 | 3.24 |
| Ryan Buchter* | Mtl | mr | 32 | .670 | 108 | .269 | 71 | .425 | 73 | .437 | 16.8 | 3.9 | 3.49 | 2.84 |
| Madison Bumgarner* | Mtl | sp | 29 | .712 | 528 | .282 | 332 | .445 | 340 | .456 | 87.0 | 4.5 | 3.98 | 3.43 |
| Aaron Bummer* | Sea | mr | 25 | .814 | 110 | .455 | 77 | .456 | 79 | .467 | 25.1 | 6.7 | 5.99 | 6.94 |
| Dylan Bundy | NYY | sp | 26 | .820 | 482 | .282 | 422 | .538 | 427 | .545 | 114.1 | 5.5 | 5.06 | 4.89 |
| Corbin Burnes | Was | mr | 24 | .707 | 121 | .231 | 84 | .454 | 88 | .476 | 18.8 | 3.6 | 3.34 | 2.91 |
| Eddie Butler | Min | mr | 28 | .783 | 128 | .258 | 81 | .488 | 83 | .500 | 23.0 | 5.4 | 4.86 | 4.99 |
| Ty Buttrey | Tor | mr | 26 | .813 | 52 | .442 | 37 | .474 | 37 | .474 | 10.9 | 5.6 | 5.07 | 4.62 |
| Trevor Cahill | Tex | sp | 31 | .758 | 379 | .322 | 281 | .465 | 288 | .477 | 77.3 | 5.1 | 4.64 | 4.97 |
| Santiago Casilla | ChW | mr | 38 | .571 | 110 | .218 | 55 | .344 | 59 | .369 | 13.3 | 3.2 | 2.85 | 2.63 |
| Jose Castillo* | Tex | mr | 23 | .427 | 85 | .176 | 45 | .287 | 46 | .293 | 6.9 | 1.5 | 1.33 | 1.03 |
| Jhoulys Chacin | Cle | sp | 31 | .745 | 596 | .277 | 412 | .464 | 422 | .476 | 109.9 | 4.9 | 4.47 | 4.52 |
| Tyler Chatwood | Det | sp | 29 | .794 | 307 | .267 | 256 | .496 | 268 | .519 | 66.6 | 5.5 | 4.98 | 6.10 |
| Jesse Chavez | Was | mr | 35 | .652 | 294 | .231 | 184 | .410 | 190 | .423 | 39.8 | 3.1 | 2.82 | 2.93 |
| Wei-Yin Chen* | Det | sp | 33 | .800 | 466 | .292 | 351 | .507 | 354 | .512 | 97.5 | 5.6 | 5.03 | 4.81 |
| Tony Cingrani* | Oak | mr | 29 | .622 | 46 | .326 | 31 | .383 | 31 | .383 | 7.1 | 3.2 | 2.93 | 2.76 |
| Tyler Clippard | Sea | mr | 34 | .720 | 170 | .271 | 143 | .457 | 149 | .476 | 36.3 | 4.3 | 3.94 | 3.62 |
| A.J. Cole | LAA | mr | 27 | .946 | 85 | .318 | 90 | .629 | 91 | .636 | 27.4 | 7.8 | 7.01 | 6.39 |
| Gerrit Cole | Oak | sp | 28 | .679 | 492 | .331 | 365 | .418 | 375 | .429 | 91.3 | 4.0 | 3.58 | 3.62 |
| Louis Coleman | Was | mr | 33 | .570 | 158 | .228 | 81 | .331 | 91 | .371 | 16.1 | 2.3 | 2.13 | 2.43 |
| Bartolo Colon | Mtl | sp | 46 | .917 | 219 | .283 | 169 | .601 | 170 | .605 | 50.8 | 7.1 | 6.40 | 5.77 |
| Adam Conley* | Bos | mr | 29 | .777 | 133 | .338 | 101 | .490 | 101 | .490 | 26.6 | 5.0 | 4.61 | 4.12 |
| Dylan Covey | Mtl | sp | 27 | .687 | 265 | .260 | 165 | .427 | 168 | .435 | 39.5 | 3.8 | 3.57 | 3.93 |
| Zach Davies | KCR | sp | 26 | .722 | 327 | .269 | 200 | .447 | 206 | .461 | 48.0 | 3.9 | 3.56 | 3.61 |
| Austin Davis* | KCR | mr | 26 | .670 | 28 | .250 | 19 | .422 | 20 | .444 | 4.4 | 3.7 | 3.36 | 3.16 |
| Jorge de la Rosa* | Bal | mr | 38 | .604 | 141 | .255 | 82 | .374 | 85 | .388 | 17.2 | 2.9 | 2.64 | 2.86 |
| Enyel De Los Santos | Det | mr | 23 | .891 | 80 | .325 | 66 | .564 | 67 | .573 | 20.0 | 7.0 | 6.47 | 5.51 |
| Chris Devenski | NYY | mr | 28 | .795 | 20 | .400 | 14 | .467 | 14 | .467 | 4.8 | 6.8 | 6.45 | 6.93 |
| Edwin Diaz | Oak | cl | 25 | .449 | 164 | .226 | 94 | .293 | 95 | .296 | 16.0 | 1.7 | 1.57 | 1.43 |
| Zach Eflin | Was | sp | 25 | .721 | 519 | .328 | 333 | .439 | 340 | .449 | 90.9 | 4.6 | 4.12 | 3.61 |
| Roenis Elias* | ChW | mr | 30 | .797 | 186 | .306 | 133 | .498 | 135 | .506 | 35.8 | 5.3 | 4.72 | 4.31 |
| Nathan Eovaldi | Det | sp | 29 | .745 | 458 | .282 | 301 | .473 | 303 | .476 | 77.4 | 4.5 | 4.14 | 3.84 |
| Robbie Erlin* | Tor | mr | 28 | .737 | 303 | .307 | 191 | .453 | 193 | .457 | 51.5 | 4.6 | 4.17 | 4.04 |
| Marco Estrada | Mtl | sp | 35 | .860 | 438 | .269 | 350 | .564 | 353 | .568 | 101.7 | 6.4 | 5.75 | 4.96 |
| Jeurys Familia | Tor | cl | 29 | .800 | 217 | .364 | 160 | .480 | 164 | .492 | 48.5 | 6.0 | 5.44 | 5.35 |
| Erick Fedde | Min | sp | 26 | .839 | 102 | .324 | 83 | .539 | 84 | .545 | 23.7 | 5.9 | 5.27 | 4.86 |
| Heath Fillmyer | ChW | sp | 25 | .446 | 26 | .154 | 9 | .281 | 9 | .281 | 1.0 | 1.0 | 0.93 | 1.21 |
| Brandon Finnegan* | NYY | sp | 26 | 1.196 | 15 | .267 | 21 | .808 | 21 | .808 | 6.9 | 11.7 | 10.54 | 11.85 |
| Jack Flaherty | NYY | sp | 23 | .643 | 434 | .240 | 317 | .412 | 330 | .429 | 68.3 | 3.2 | 2.91 | 2.93 |
| Brian Flynn* | Tex | mr | 29 | .957 | 273 | .392 | 210 | .565 | 215 | .578 | 67.6 | 7.8 | 6.99 | 8.26 |
| Mike Foltynewicz | Bal | sp | 27 | .519 | 543 | .254 | 262 | .311 | 269 | .319 | 53.1 | 2.2 | 2.01 | 1.75 |
| Sam Freeman* | Oak | mr | 32 | .625 | 111 | .243 | 78 | .400 | 81 | .415 | 17.7 | 3.5 | 3.18 | 3.33 |
| Max Fried* | KCR | mr | 25 | .642 | 42 | .310 | 39 | .424 | 39 | .424 | 8.7 | 3.5 | 3.19 | 3.41 |
| Carson Fulmer | NYY | sp | 25 | .969 | 72 | .278 | 73 | .624 | 75 | .641 | 22.7 | 8.3 | 7.34 | 8.06 |
| Michael Fulmer | Det | sp | 26 | .674 | 501 | .275 | 305 | .415 | 313 | .426 | 72.4 | 3.6 | 3.27 | 3.19 |
| Yovani Gallardo | Bos | sp | 33 | .902 | 276 | .330 | 217 | .567 | 219 | .572 | 60.2 | 6.2 | 5.65 | 6.09 |
| John Gant | KCR | sp | 26 | .593 | 416 | .236 | 219 | .370 | 224 | .378 | 49.4 | 3.1 | 2.77 | 2.36 |
| Jaime Garcia* | Tex | mr | 32 | .953 | 259 | .317 | 255 | .606 | 260 | .618 | 78.5 | 7.8 | 7.01 | 7.22 |
| Jarlin Garcia* | Was | mr | 26 | .673 | 113 | .159 | 80 | .462 | 81 | .468 | 15.1 | 3.0 | 2.76 | 2.83 |
| Yimi Garcia | Det | mr | 28 | 1.182 | 14 | .357 | 18 | .818 | 18 | .818 | 6.7 | 13.0 | 11.69 | 10.85 |
| Sam Gaviglio | KCR | sp | 29 | .667 | 503 | .274 | 302 | .418 | 303 | .420 | 75.7 | 3.9 | 3.59 | 3.34 |
| Domingo German | Cle | sp | 26 | .897 | 313 | .319 | 268 | .570 | 273 | .581 | 82.9 | 7.2 | 6.56 | 5.96 |
| Sean Gilmartin* | Was | mr | 29 | .488 | 76 | .118 | 39 | .325 | 41 | .342 | 7.1 | 2.1 | 1.95 | 1.70 |
| Lucas Giolito | ChW | sp | 24 | .856 | 517 | .282 | 424 | .539 | 439 | .558 | 126.3 | 6.6 | 5.90 | 5.69 |
| Zack Godley | NYY | sp | 29 | .795 | 533 | .347 | 403 | .480 | 414 | .493 | 121.0 | 6.0 | 5.49 | 5.71 |
| Luiz Gohara* |   | mr | 22 | .788 | 109 | .303 | 72 | .490 | 73 | .497 | 20.7 | 5.6 | 5.13 | 4.86 |
| Marco Gonzales* | Sea | sp | 27 | .738 | 577 | .310 | 361 | .448 | 368 | .457 | 93.3 | 4.3 | 3.94 | 3.95 |
| Gio Gonzalez* | LAA | sp | 33 | .804 | 533 | .304 | 413 | .513 | 415 | .516 | 116.0 | 5.8 | 5.27 | 5.11 |
| Sonny Gray | KCR | sp | 29 | .637 | 433 | .279 | 236 | .380 | 245 | .395 | 59.9 | 3.7 | 3.32 | 3.11 |
| Chad Green | NYY | mr | 28 | .629 | 216 | .292 | 139 | .394 | 141 | .399 | 32.1 | 3.3 | 2.92 | 2.53 |
| Shane Greene | LAA | cl | 30 | .981 | 165 | .352 | 174 | .630 | 175 | .634 | 55.7 | 8.4 | 7.69 | 8.32 |
| Robert Gsellman | Cle | mr | 25 | .829 | 214 | .327 | 155 | .512 | 159 | .525 | 45.0 | 5.8 | 5.23 | 4.90 |
| Junior Guerra | Oak | sp | 34 | .794 | 420 | .338 | 317 | .490 | 321 | .496 | 92.8 | 5.8 | 5.28 | 5.32 |
| Josh Hader* | NYY | mr | 25 | .559 | 140 | .243 | 144 | .381 | 148 | .392 | 27.5 | 2.6 | 2.31 | 2.04 |
| Brad Hand* | Oak | cl | 29 | .629 | 173 | .295 | 131 | .395 | 138 | .416 | 28.1 | 3.0 | 2.76 | 2.53 |
| J.A. Happ* | Sea | sp | 36 | .719 | 469 | .260 | 359 | .463 | 369 | .476 | 89.2 | 4.3 | 3.88 | 3.68 |
| Will Harris | Det | mr | 34 | .520 | 107 | .243 | 60 | .328 | 61 | .333 | 11.8 | 2.3 | 2.08 | 2.02 |
| Jeremy Hellickson | Min | sp | 32 | .786 | 444 | .284 | 286 | .482 | 297 | .501 | 77.1 | 4.9 | 4.53 | 4.41 |
| Heath Hembree | Det | mr | 30 | .632 | 179 | .251 | 123 | .401 | 127 | .414 | 28.8 | 3.5 | 3.28 | 3.31 |
| Kyle Hendricks |   | sp | 29 | .672 | 662 | .263 | 364 | .401 | 384 | .423 | 87.7 | 3.5 | 3.17 | 3.16 |
| Elieser Hernandez | KCR | mr | 24 | .838 | 154 | .299 | 104 | .512 | 107 | .527 | 31.1 | 6.2 | 5.68 | 5.92 |
| Kelvin Herrera | Sea | cl | 29 | .592 | 131 | .290 | 53 | .323 | 55 | .335 | 11.0 | 2.3 | 2.09 | 2.49 |
| Trevor Hildenberger | Tor | mr | 28 | .811 | 205 | .317 | 149 | .505 | 152 | .515 | 42.3 | 5.6 | 5.03 | 4.71 |
| Rich Hill* | ChW | sp | 39 | .726 | 432 | .308 | 331 | .458 | 339 | .469 | 84.9 | 4.4 | 3.91 | 3.60 |
| Tim Hill* | Mtl | mr | 29 | .807 | 116 | .302 | 82 | .488 | 84 | .500 | 24.0 | 6.1 | 5.56 | 6.46 |
| Yoshihisa Hirano | Bal | mr | 35 | .707 | 177 | .288 | 113 | .433 | 117 | .448 | 23.5 | 3.1 | 2.82 | 3.35 |
| Derek Holland* | ChW | sp | 32 | .740 | 502 | .325 | 374 | .453 | 388 | .470 | 100.7 | 4.9 | 4.37 | 4.27 |
| Clay Holmes | LAA | mr | 26 | .762 | 68 | .206 | 52 | .505 | 53 | .515 | 12.0 | 4.4 | 3.95 | 4.41 |
| Dakota Hudson | KCR | mr | 24 | .339 | 31 | .161 | 10 | .217 | 10 | .217 | 1.2 | 0.9 | 0.86 | 1.05 |
| Daniel Hudson | Oak | mr | 32 | .541 | 133 | .233 | 69 | .338 | 70 | .343 | 14.5 | 2.5 | 2.27 | 2.01 |
| Tommy Hunter | ChW | mr | 32 | .751 | 247 | .300 | 149 | .460 | 153 | .472 | 40.6 | 4.7 | 4.27 | 3.70 |
| Edwin Jackson | Sea | sp | 35 | .871 | 370 | .303 | 286 | .553 | 288 | .557 | 87.5 | 7.0 | 6.33 | 5.92 |
| Luke Jackson | Bos | mr | 27 | .888 | 175 | .400 | 160 | .542 | 163 | .553 | 52.4 | 7.9 | 7.07 | 6.80 |
| Josh James | Mtl | sp | 26 | .633 | 78 | .231 | 61 | .399 | 66 | .431 | 14.1 | 3.4 | 3.09 | 3.01 |
| Dan Jennings* | NYY | mr | 32 | .899 | 34 | .265 | 31 | .608 | 31 | .608 | 8.8 | 6.8 | 5.95 | 5.18 |
| Joe Jimenez | Cle | mr | 24 | .596 | 181 | .249 | 114 | .385 | 115 | .389 | 22.6 | 2.7 | 2.45 | 2.11 |
| Jim Johnson | Min | mr | 36 | .681 | 184 | .250 | 112 | .431 | 113 | .435 | 23.3 | 3.2 | 2.86 | 3.35 |
| Pierce Johnson | Sea | mr | 28 | .586 | 97 | .247 | 52 | .361 | 53 | .368 | 11.4 | 2.9 | 2.64 | 2.34 |
| Nate Jones | Oak | mr | 33 | .558 | 85 | .271 | 43 | .323 | 46 | .346 | 9.3 | 2.6 | 2.35 | 2.80 |
| Jake Junis | KCR | sp | 26 | .652 | 522 | .257 | 308 | .395 | 325 | .417 | 74.6 | 3.5 | 3.15 | 3.00 |
| Tommy Kahnle | Tex | mr | 29 | .704 | 55 | .291 | 40 | .440 | 41 | .451 | 10.5 | 4.7 | 4.19 | 4.31 |
| Brad Keller | Cle | sp | 23 | .654 | 462 | .292 | 239 | .387 | 241 | .390 | 60.6 | 3.7 | 3.38 | 3.54 |
| Shawn Kelley | NYY | mr | 35 | .616 | 143 | .245 | 82 | .387 | 84 | .396 | 18.4 | 3.1 | 2.75 | 2.12 |
| Casey Kelly | Was | mr | 29 | .723 | 112 | .241 | 70 | .470 | 71 | .477 | 15.6 | 3.7 | 3.44 | 3.25 |
| Ian Kennedy | Tor | sp | 34 | .862 | 412 | .284 | 342 | .560 | 345 | .565 | 98.6 | 6.3 | 5.82 | 5.48 |
| Dallas Keuchel* | LAA | sp | 31 | .785 | 660 | .345 | 405 | .464 | 412 | .472 | 120.3 | 5.5 | 4.99 | 4.89 |
| Brandon Kintzler | Sea | mr | 34 | .744 | 190 | .279 | 111 | .429 | 119 | .459 | 30.2 | 4.5 | 4.03 | 4.25 |
| Matt Koch | Mtl | sp | 28 | .500 | 12 | .250 | 4 | .286 | 4 | .286 | 0.6 | 1.3 | 1.26 | 1.32 |
| Wade LeBlanc* | Oak | sp | 34 | .704 | 550 | .284 | 354 | .439 | 362 | .449 | 92.3 | 4.3 | 3.95 | 3.59 |
| Jose Leclerc | Det | mr | 25 | .287 | 127 | .118 | 51 | .199 | 55 | .215 | 5.9 | 0.8 | 0.68 | 0.67 |
| Dominic Leone | Det | mr | 27 | .800 | 89 | .382 | 67 | .479 | 68 | .486 | 19.6 | 5.6 | 5.08 | 5.50 |
| Jon Lester* | ChW | sp | 35 | .728 | 601 | .321 | 381 | .433 | 390 | .443 | 107.3 | 4.8 | 4.35 | 4.54 |
| Artie Lewicki | Bos | mr | 27 | .928 | 78 | .397 | 70 | .565 | 72 | .581 | 23.0 | 7.8 | 6.91 | 7.00 |
| Adam Liberatore* | ChW | mr | 32 | .593 | 36 | .250 | 22 | .379 | 22 | .379 | 4.0 | 2.3 | 2.13 | 2.24 |
| Ben Lively | Mtl | sp | 27 | .902 | 63 | .397 | 52 | .520 | 55 | .550 | 17.6 | 7.8 | 7.02 | 7.87 |
| Jorge Lopez | Cle | mr | 26 | .823 | 140 | .336 | 104 | .507 | 104 | .507 | 32.3 | 6.7 | 6.09 | 5.81 |
| Pablo Lopez | Mtl | sp | 23 | .632 | 310 | .245 | 164 | .390 | 169 | .401 | 38.6 | 3.3 | 2.99 | 2.39 |
| Yoan Lopez | Cle | mr | 26 | .810 | 17 | .412 | 14 | .500 | 14 | .500 | 4.9 | 7.9 | 7.08 | 5.72 |
| Aaron Loup* | Tor | mr | 31 | .813 | 40 | .400 | 33 | .485 | 34 | .500 | 8.8 | 5.2 | 4.78 | 5.26 |
| Seth Lugo | Bal | mr | 29 | .672 | 259 | .317 | 145 | .390 | 149 | .401 | 37.5 | 3.7 | 3.37 | 3.41 |
| Jordan Lyles | Was | mr | 28 | .793 | 184 | .304 | 146 | .507 | 148 | .514 | 40.6 | 5.4 | 4.89 | 4.69 |
| Lance Lynn | Bos | sp | 32 | .774 | 472 | .373 | 335 | .460 | 343 | .471 | 100.2 | 5.7 | 5.09 | 5.00 |
| Sean Manaea* | Tex | sp | 27 | .824 | 580 | .291 | 405 | .513 | 417 | .528 | 116.2 | 5.7 | 5.09 | 4.85 |
| Carlos Martinez | Min | sp | 27 | .622 | 282 | .255 | 164 | .371 | 177 | .400 | 36.5 | 3.0 | 2.74 | 2.96 |
| Phil Maton | KCR | mr | 26 | .779 | 89 | .382 | 66 | .458 | 68 | .472 | 19.4 | 5.2 | 4.71 | 4.91 |
| Trevor May | NYY | mr | 29 | .484 | 48 | .125 | 30 | .333 | 31 | .344 | 4.6 | 1.6 | 1.47 | 1.31 |
| Mike Mayers | Bos | mr | 27 | 1.010 | 153 | .373 | 156 | .647 | 158 | .656 | 53.7 | 9.7 | 8.48 | 7.38 |
| Tim Mayza* | Tex | mr | 27 | .677 | 105 | .352 | 65 | .394 | 66 | .400 | 16.6 | 3.8 | 3.61 | 3.80 |
| Zach McAllister | Tor | mr | 31 | 1.023 | 55 | .400 | 48 | .608 | 50 | .633 | 18.9 | 11.1 | 10.00 | 9.92 |
| Brandon McCarthy | Mtl | sp | 35 | 1.252 | 187 | .439 | 218 | .790 | 219 | .793 | 87.0 | 15.1 | 13.55 | 15.05 |
| Kevin McCarthy | LAA | mr | 27 | .765 | 233 | .296 | 147 | .468 | 150 | .478 | 39.8 | 4.8 | 4.36 | 4.35 |
| T.J. McFarland* |   | mr | 30 | .617 | 256 | .262 | 120 | .367 | 122 | .373 | 26.3 | 2.9 | 2.58 | 2.68 |
| Jake McGee* | Min | mr | 32 | .813 | 30 | .367 | 21 | .488 | 21 | .488 | 6.3 | 6.1 | 5.68 | 4.85 |
| Mark Melancon | Min | mr | 34 | .479 | 100 | .270 | 35 | .259 | 36 | .267 | 7.3 | 1.9 | 1.74 | 1.60 |
| Yohander Mendez* | Oak | sp | 24 | .769 | 162 | .265 | 111 | .472 | 113 | .481 | 28.2 | 4.7 | 4.31 | 4.74 |
| Daniel Mengden | Was | sp | 26 | .829 | 353 | .278 | 255 | .520 | 262 | .535 | 73.9 | 5.9 | 5.36 | 5.35 |
| Keynan Middleton | Cle | mr | 25 | .817 | 60 | .350 | 50 | .510 | 50 | .510 | 14.2 | 5.7 | 5.31 | 4.92 |
| Wade Miley* | Oak | sp | 32 | .738 | 361 | .296 | 213 | .445 | 219 | .457 | 57.5 | 4.6 | 4.12 | 4.00 |
| Andrew Miller* | Tor | mr | 34 | .797 | 99 | .354 | 82 | .461 | 92 | .517 | 25.5 | 6.2 | 5.58 | 4.98 |
| Justin Miller | Bal | mr | 32 | .642 | 134 | .201 | 96 | .427 | 99 | .440 | 19.9 | 3.1 | 2.81 | 2.54 |
| Shelby Miller | Tex | sp | 28 | 1.491 | 42 | .500 | 61 | .968 | 61 | .968 | 29.4 | 24.8 | 22.35 | 22.42 |
| Alec Mills | ChW | mr | 27 | .564 | 105 | .219 | 61 | .367 | 62 | .373 | 11.8 | 2.5 | 2.23 | 1.75 |
| Juan Minaya | Oak | mr | 28 | .566 | 124 | .226 | 81 | .373 | 83 | .382 | 17.6 | 2.9 | 2.61 | 2.01 |
| Mike Minor* | Was | sp | 31 | .786 | 526 | .285 | 392 | .500 | 403 | .514 | 106.5 | 5.2 | 4.63 | 4.08 |
| A.J. Minter* | LAA | mr | 25 | .797 | 168 | .375 | 127 | .479 | 128 | .483 | 39.8 | 6.3 | 5.53 | 5.61 |
| Ariel Miranda* | Was | sp | 30 | .920 | 50 | .440 | 36 | .522 | 36 | .522 | 13.8 | 9.8 | 8.81 | 9.38 |
| Bryan Mitchell | Mtl | sp | 28 | .801 | 224 | .246 | 149 | .505 | 151 | .512 | 37.9 | 4.9 | 4.47 | 4.86 |
| Jordan Montgomery* | Bal | sp | 26 | .653 | 148 | .270 | 89 | .406 | 89 | .406 | 20.3 | 3.5 | 3.22 | 3.77 |
| Matt Moore* | Tex | mr | 30 | .924 | 324 | .352 | 273 | .577 | 277 | .586 | 88.8 | 7.9 | 7.10 | 6.82 |
| Adam Morgan* | Det | mr | 29 | .526 | 141 | .270 | 78 | .321 | 80 | .329 | 16.2 | 2.4 | 2.18 | 2.14 |
| Reyes Moronta |   | mr | 26 | .522 | 174 | .236 | 106 | .337 | 108 | .343 | 19.9 | 2.3 | 2.08 | 1.98 |
| Gabriel Moya* |   | mr | 24 | .710 | 106 | .245 | 71 | .447 | 74 | .465 | 17.8 | 4.2 | 3.77 | 3.60 |
| Peter Moylan | Mtl | mr | 40 | .802 | 23 | .348 | 13 | .464 | 13 | .464 | 3.5 | 4.7 | 4.26 | 5.73 |
| Hector Neris | Det | mr | 30 | .909 | 119 | .345 | 138 | .603 | 138 | .603 | 40.4 | 7.1 | 6.33 | 5.85 |
| Pat Neshek | Min | mr | 38 | .524 | 70 | .229 | 31 | .326 | 31 | .326 | 6.1 | 2.2 | 2.03 | 1.45 |
| Juan Nicasio | Tex | mr | 32 | .831 | 96 | .406 | 80 | .510 | 82 | .522 | 25.5 | 6.6 | 5.89 | 4.68 |
| Bud Norris | Min | cl | 34 | .720 | 167 | .263 | 119 | .427 | 130 | .466 | 32.9 | 4.5 | 4.13 | 4.15 |
| James Norwood | ChW | mr | 25 | .847 | 36 | .361 | 26 | .491 | 27 | .509 | 8.7 | 7.3 | 6.58 | 7.15 |
| Vidal Nuno* | Min | mr | 31 | .668 | 102 | .245 | 61 | .418 | 63 | .432 | 14.5 | 3.7 | 3.33 | 3.24 |
| Darren O'Day | Sea | mr | 36 | .280 | 16 | .188 | 4 | .160 | 4 | .160 | 0.5 | 0.6 | 0.53 | 0.37 |
| Trevor Oaks | Oak | sp | 26 | .787 | 67 | .358 | 41 | .461 | 41 | .461 | 11.7 | 5.3 | 4.99 | 5.85 |
| Jake Odorizzi | Sea | sp | 29 | .837 | 498 | .321 | 408 | .521 | 421 | .538 | 123.3 | 6.3 | 5.72 | 5.06 |
| Seung Hwan Oh | Tor | mr | 36 | .794 | 197 | .315 | 161 | .495 | 166 | .511 | 46.6 | 5.9 | 5.31 | 5.16 |
| Shohei Ohtani | ChW | dh | 24 | .779 | 203 | .350 | 168 | .475 | 172 | .486 | 48.3 | 5.7 | 5.06 | 5.68 |
| Steven Okert* | Det | mr | 27 | 1.292 | 14 | .429 | 17 | .850 | 17 | .850 | 7.3 | 18.0 | 14.82 | 14.00 |
| Roberto Osuna | Tor | cl | 24 | .563 | 118 | .254 | 54 | .307 | 61 | .347 | 12.7 | 2.7 | 2.40 | 2.30 |
| Dan Otero | KCR | mr | 34 | .760 | 131 | .359 | 77 | .435 | 80 | .452 | 21.1 | 4.5 | 4.09 | 4.32 |
| Emilio Pagan | Was | mr | 28 | 1.047 | 191 | .387 | 201 | .672 | 202 | .676 | 71.7 | 10.7 | 9.73 | 8.66 |
| Thomas Pannone* | Oak | sp | 25 | .797 | 172 | .273 | 120 | .504 | 122 | .513 | 34.0 | 5.6 | 5.00 | 4.57 |
| Blake Parker | Min | mr | 34 | .799 | 189 | .291 | 149 | .507 | 153 | .520 | 38.9 | 4.9 | 4.48 | 4.53 |
| James Paxton* | Sea | sp | 30 | .654 | 447 | .311 | 306 | .406 | 310 | .412 | 71.9 | 3.5 | 3.16 | 3.04 |
| Brad Peacock | Bal | mr | 31 | .854 | 149 | .356 | 151 | .545 | 154 | .556 | 43.1 | 6.3 | 5.70 | 5.36 |
| Freddy Peralta | Min | sp | 23 | .671 | 216 | .278 | 189 | .441 | 193 | .450 | 42.6 | 3.7 | 3.33 | 3.04 |
| Luis Perdomo | Mtl | sp | 26 | .824 | 213 | .347 | 157 | .498 | 162 | .514 | 45.3 | 5.9 | 5.19 | 5.45 |
| Cionel Perez* | Det | mr | 23 | .482 | 28 | .071 | 19 | .345 | 20 | .364 | 3.6 | 2.4 | 2.19 | 2.01 |
| Yusmeiro Petit | LAA | mr | 34 | .693 | 282 | .270 | 162 | .430 | 164 | .435 | 39.9 | 3.8 | 3.45 | 3.06 |
| Nick Pivetta | Was | sp | 26 | .752 | 482 | .317 | 381 | .473 | 387 | .480 | 96.3 | 4.4 | 4.01 | 4.09 |
| Drew Pomeranz* | Sea | mr | 30 | .977 | 57 | .298 | 60 | .632 | 61 | .642 | 18.3 | 8.2 | 7.41 | 7.67 |
| Daniel Poncedeleon | NYY | mr | 27 | .613 | 142 | .275 | 74 | .366 | 76 | .376 | 18.0 | 3.3 | 3.02 | 2.82 |
| Ryan Pressly | Was | mr | 30 | .584 | 182 | .357 | 105 | .333 | 109 | .346 | 25.9 | 3.0 | 2.70 | 2.60 |
| Erasmo Ramirez | Tor | sp | 29 | .791 | 242 | .256 | 171 | .499 | 178 | .519 | 46.4 | 5.1 | 4.58 | 4.46 |
| Noe Ramirez | Tex | mr | 29 | .820 | 273 | .319 | 226 | .526 | 229 | .533 | 65.2 | 6.0 | 5.50 | 4.82 |
| Yefry Ramirez | KCR | sp | 25 | .663 | 148 | .270 | 92 | .418 | 93 | .423 | 21.9 | 3.8 | 3.37 | 3.12 |
| A.J. Ramos | Mtl | mr | 32 | .883 | 22 | .273 | 19 | .543 | 20 | .571 | 5.8 | 7.1 | 6.38 | 7.87 |
| Cody Reed* | Tex | mr | 26 | .787 | 160 | .419 | 117 | .464 | 117 | .464 | 34.7 | 5.7 | 5.17 | 6.06 |
| Garrett Richards |   | sp | 31 | .885 | 286 | .350 | 264 | .549 | 269 | .559 | 79.2 | 6.8 | 6.13 | 6.93 |
| Trevor Richards | Mtl | sp | 26 | .776 | 440 | .316 | 329 | .486 | 334 | .493 | 88.9 | 5.0 | 4.54 | 4.28 |
| Tanner Roark | Bal | sp | 32 | .714 | 527 | .304 | 331 | .432 | 342 | .446 | 85.3 | 4.2 | 3.84 | 3.80 |
| David Robertson | NYY | mr | 34 | .558 | 133 | .218 | 86 | .371 | 86 | .371 | 16.9 | 2.5 | 2.31 | 1.88 |
| Hansel Robles | Min | mr | 28 | .772 | 143 | .343 | 101 | .479 | 101 | .479 | 27.0 | 5.0 | 4.55 | 4.55 |
| Fernando Rodney | Bos | cl | 42 | .750 | 225 | .360 | 151 | .444 | 153 | .450 | 44.9 | 5.4 | 4.84 | 4.96 |
| Dereck Rodriguez | KCR | sp | 27 | .663 | 434 | .251 | 251 | .422 | 257 | .432 | 55.4 | 3.3 | 3.02 | 2.41 |
| Eduardo Rodriguez* | Bos | sp | 26 | .749 | 405 | .343 | 298 | .456 | 304 | .466 | 81.9 | 4.9 | 4.44 | 4.66 |
| Jefry Rodriguez | KCR | sp | 25 | .817 | 123 | .268 | 97 | .527 | 99 | .538 | 27.8 | 6.3 | 5.73 | 5.28 |
| Richard Rodriguez | Was | mr | 29 | .679 | 194 | .351 | 130 | .406 | 134 | .419 | 33.7 | 4.0 | 3.61 | 3.54 |
| Chaz Roe | NYY | mr | 32 | .815 | 146 | .267 | 122 | .492 | 134 | .540 | 36.5 | 6.0 | 5.48 | 5.43 |
| Taylor Rogers* | Sea | mr | 28 | .482 | 158 | .253 | 67 | .273 | 71 | .290 | 13.3 | 1.8 | 1.65 | 1.47 |
| Sergio Romo | Cle | mr | 36 | .832 | 193 | .342 | 155 | .498 | 162 | .521 | 45.9 | 6.0 | 5.34 | 6.05 |
| Randy Rosario* | Cle | mr | 25 | .804 | 129 | .388 | 87 | .473 | 87 | .473 | 24.2 | 5.4 | 4.90 | 5.86 |
| Chris Rusin* |   | mr | 32 | .716 | 52 | .192 | 36 | .474 | 37 | .487 | 8.3 | 4.0 | 3.67 | 3.69 |
| Connor Sadzeck | ChW | mr | 27 | 1.128 | 35 | .400 | 39 | .696 | 39 | .696 | 14.4 | 13.4 | 11.68 | 11.35 |
| Jeff Samardzija | Tor | sp | 34 | .779 | 209 | .282 | 140 | .473 | 143 | .483 | 41.0 | 5.8 | 5.33 | 5.77 |
| Aaron Sanchez | Min | sp | 26 | .691 | 141 | .277 | 90 | .429 | 92 | .438 | 22.6 | 4.1 | 3.66 | 3.77 |
| Anibal Sanchez | Min | sp | 35 | .717 | 452 | .274 | 302 | .454 | 306 | .460 | 78.6 | 4.4 | 4.04 | 3.59 |
| Edgar Santana | Oak | mr | 27 | .621 | 210 | .252 | 113 | .378 | 116 | .388 | 25.2 | 3.0 | 2.69 | 2.46 |
| Jaime Schultz | Min | mr | 28 | .718 | 57 | .316 | 52 | .477 | 52 | .477 | 13.0 | 4.6 | 4.21 | 3.71 |
| Tanner Scott* | KCR | mr | 24 | .659 | 77 | .247 | 78 | .446 | 80 | .457 | 17.5 | 3.8 | 3.46 | 3.29 |
| Luis Severino | NYY | sp | 25 | .717 | 547 | .316 | 397 | .450 | 400 | .453 | 103.5 | 4.4 | 4.05 | 3.86 |
| Justus Sheffield* | Det | mr | 23 | .250 | 3 | .000 | 1 | .250 | 1 | .250 | 0.1 | 0.6 | 0.53 | 0.94 |
| Jimmie Sherfy | Det | mr | 27 | .668 | 39 | .128 | 39 | .448 | 42 | .483 | 9.9 | 4.7 | 4.16 | 4.42 |
| James Shields | Bos | sp | 37 | .679 | 510 | .249 | 303 | .423 | 313 | .437 | 76.4 | 4.0 | 3.63 | 3.34 |
| Matt Shoemaker | LAA | sp | 32 | .834 | 163 | .368 | 127 | .510 | 130 | .522 | 38.3 | 6.2 | 5.64 | 5.41 |
| Chasen Shreve* | KCR | mr | 28 | .761 | 100 | .270 | 80 | .497 | 81 | .503 | 20.2 | 4.8 | 4.38 | 4.24 |
| Lucas Sims | Det | mr | 25 | .805 | 53 | .340 | 39 | .488 | 40 | .500 | 12.5 | 6.9 | 6.06 | 5.80 |
| Tony Sipp* | ChW | mr | 35 | .619 | 109 | .284 | 77 | .395 | 79 | .405 | 16.2 | 3.1 | 2.83 | 2.67 |
| Tyler Skaggs* | Tex | sp | 27 | .827 | 469 | .371 | 362 | .507 | 366 | .513 | 107.8 | 6.0 | 5.41 | 5.32 |
| Carson Smith | NYY | mr | 29 | 1.313 | 25 | .520 | 34 | .850 | 34 | .850 | 14.5 | 17.8 | 15.36 | 14.43 |
| Drew Smith | Sea | mr | 25 | 1.077 | 12 | .583 | 7 | .538 | 7 | .538 | 3.2 | 12.5 | 11.22 | 15.68 |
| Chad Sobotka | Tor | mr | 25 | .667 | 31 | .161 | 28 | .467 | 28 | .467 | 6.0 | 3.8 | 3.38 | 3.56 |
| Joakim Soria | Oak | mr | 35 | .518 | 171 | .257 | 92 | .329 | 93 | .332 | 17.7 | 2.2 | 2.04 | 1.57 |
| Ryne Stanek | Bos | mr | 27 | .583 | 172 | .262 | 116 | .379 | 117 | .382 | 23.9 | 2.7 | 2.49 | 1.98 |
| Drew Steckenrider | NYY | mr | 28 | .609 | 189 | .296 | 109 | .366 | 110 | .369 | 25.9 | 3.2 | 2.89 | 2.97 |
| Brock Stewart | Det | mr | 27 | 1.315 | 48 | .375 | 68 | .840 | 68 | .840 | 28.6 | 18.4 | 16.96 | 17.15 |
| Kohl Stewart | Tor | sp | 24 | .693 | 60 | .350 | 35 | .385 | 37 | .407 | 8.9 | 3.9 | 3.60 | 5.11 |
| Robert Stock | Mtl | mr | 29 | .681 | 126 | .373 | 77 | .387 | 80 | .402 | 20.5 | 4.0 | 3.69 | 3.88 |
| Dan Straily | Oak | sp | 30 | .752 | 460 | .224 | 334 | .490 | 344 | .504 | 81.4 | 4.4 | 4.01 | 3.91 |
| Daniel Stumpf* | Cle | mr | 28 | .976 | 38 | .395 | 38 | .623 | 38 | .623 | 12.7 | 9.3 | 8.59 | 7.98 |
| Andrew Suarez* | Bos | sp | 26 | .771 | 552 | .324 | 362 | .468 | 371 | .479 | 94.8 | 4.6 | 4.19 | 4.28 |
| Noah Syndergaard | Tor | sp | 26 | .665 | 612 | .299 | 342 | .399 | 350 | .408 | 87.8 | 3.8 | 3.46 | 3.15 |
| Jameson Taillon | Min | sp | 27 | .711 | 583 | .328 | 364 | .424 | 375 | .437 | 98.6 | 4.4 | 3.93 | 3.80 |
| Julio Teheran | Bal | sp | 28 | .751 | 447 | .262 | 362 | .487 | 370 | .497 | 95.1 | 5.0 | 4.52 | 4.35 |
| Jake Thompson | Tex | mr | 25 | .630 | 39 | .256 | 32 | .416 | 33 | .429 | 6.9 | 3.6 | 3.16 | 3.83 |
| Blake Treinen | KCR | cl | 31 | .437 | 105 | .276 | 43 | .254 | 43 | .254 | 7.6 | 1.5 | 1.38 | 1.27 |
| Lou Trivino | Cle | mr | 27 | .608 | 170 | .265 | 106 | .371 | 111 | .388 | 22.3 | 2.8 | 2.51 | 2.72 |
| Nick Tropeano | Was | sp | 28 | .773 | 264 | .235 | 210 | .504 | 217 | .520 | 53.7 | 4.9 | 4.35 | 4.05 |
| Sam Tuivailala | KCR | mr | 26 | .842 | 69 | .406 | 49 | .490 | 50 | .500 | 16.0 | 6.7 | 5.97 | 6.12 |
| Jose Urena | Det | sp | 27 | .711 | 569 | .265 | 346 | .425 | 369 | .453 | 88.2 | 4.0 | 3.68 | 3.76 |
| Felipe Vazquez* | Cle | cl | 27 | .564 | 155 | .284 | 84 | .332 | 88 | .348 | 18.5 | 2.6 | 2.36 | 2.23 |
| Pat Venditte* | Oak | mr | 34 | .541 | 33 | .182 | 14 | .298 | 17 | .362 | 2.3 | 1.6 | 1.49 | 1.87 |
| Justin Verlander | Cle | sp | 36 | .665 | 529 | .319 | 384 | .414 | 393 | .423 | 93.6 | 3.7 | 3.38 | 3.09 |
| Arodys Vizcaino |   | cl | 28 | .909 | 118 | .347 | 121 | .579 | 122 | .584 | 34.5 | 6.8 | 6.16 | 6.42 |
| Michael Wacha | Tex | sp | 27 | .713 | 289 | .291 | 188 | .435 | 194 | .449 | 50.6 | 4.7 | 4.27 | 4.28 |
| Adam Wainwright | Cle | sp | 37 | .813 | 121 | .331 | 84 | .469 | 89 | .497 | 27.3 | 6.5 | 5.93 | 5.89 |
| Taijuan Walker | Sea | sp | 26 | .687 | 114 | .316 | 65 | .401 | 66 | .407 | 18.0 | 4.6 | 4.16 | 4.78 |
| Adam Warren | Bal | mr | 31 | .766 | 170 | .353 | 112 | .448 | 117 | .468 | 35.1 | 5.9 | 5.27 | 4.91 |
| J.B. Wendelken | ChW | mr | 26 | .488 | 48 | .125 | 26 | .342 | 26 | .342 | 4.3 | 1.9 | 1.73 | 1.65 |
| Taylor Williams | LAA | mr | 27 | .685 | 156 | .308 | 102 | .415 | 104 | .423 | 26.3 | 4.2 | 3.88 | 3.97 |
| Trevor Williams | LAA | sp | 27 | .685 | 559 | .275 | 333 | .424 | 339 | .432 | 83.3 | 4.0 | 3.68 | 3.42 |
| Alex Wilson | ChW | mr | 32 | .590 | 213 | .244 | 100 | .351 | 103 | .361 | 21.8 | 2.7 | 2.39 | 2.40 |
| Justin Wilson* | Bal | mr | 31 | .776 | 143 | .329 | 125 | .483 | 129 | .498 | 34.0 | 5.4 | 4.80 | 4.98 |
| Trey Wingenter | Tor | mr | 25 | .981 | 44 | .341 | 62 | .646 | 62 | .646 | 19.3 | 9.0 | 7.94 | 9.31 |
| Daniel Winkler | ChW | mr | 29 | .640 | 189 | .291 | 121 | .394 | 126 | .410 | 29.7 | 3.7 | 3.32 | 2.73 |
| Nick Wittgren | Sea | mr | 28 | .417 | 78 | .205 | 34 | .266 | 34 | .266 | 5.2 | 1.4 | 1.23 | 1.20 |
| Alex Wood* | Tor | sp | 28 | .739 | 486 | .288 | 339 | .455 | 351 | .471 | 87.9 | 4.4 | 4.09 | 4.15 |
| Blake Wood |   | mr | 33 | .619 | 38 | .289 | 22 | .386 | 22 | .386 | 4.2 | 2.6 | 2.43 | 3.03 |
| Hunter Wood | Tor | mr | 25 | .845 | 196 | .347 | 156 | .525 | 157 | .529 | 47.0 | 6.4 | 5.69 | 5.62 |
| Brandon Woodruff | Cle | mr | 26 | .697 | 152 | .336 | 99 | .412 | 104 | .433 | 25.4 | 3.9 | 3.59 | 3.52 |
| Steven Wright | Tex | mr | 34 | .562 | 186 | .210 | 92 | .343 | 98 | .366 | 18.0 | 2.4 | 2.17 | 2.39 |
| Jimmy Yacabonis | KCR | sp | 27 | .522 | 84 | .155 | 41 | .323 | 46 | .362 | 8.0 | 2.3 | 2.14 | 2.33 |
| Ryan Yarbrough* | Mtl | mr | 27 | .790 | 449 | .305 | 314 | .491 | 322 | .503 | 87.0 | 5.2 | 4.74 | 4.37 |
| Daniel Zamora* | Tex | mr | 26 | .690 | 17 | .353 | 12 | .429 | 12 | .429 | 3.2 | 4.8 | 4.13 | 3.98 |
| Jordan Zimmermann | Bal | sp | 33 | .850 | 484 | .300 | 378 | .541 | 381 | .545 | 112.3 | 6.3 | 5.87 | 5.61 |
| Start |
| Name | Team | P | Age | GS | CG | CG% | SHO | QS | QS% | RS | RS/G | RL | RLS | RL% | NP/G | STR% |
| Matt Albers | Det | mr | 36 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 1 | 1 | 1.000 | 22.2 | .586 |
| Scott Alexander* | Tex | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 19 | 4 | .211 | 19.4 | .637 |
| Cody Allen | LAA | cl | 30 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 14 | 5 | .357 | 22.6 | .602 |
| Dan Altavilla | Cle | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 2 | 0 | .000 | 26.3 | .596 |
| Jose Alvarez* | LAA | mr | 30 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 9 | 3 | .333 | 17.8 | .594 |
| Brett Anderson* | Tor | sp | 31 | 20 | 0 | .000 | 0 | 8 | .400 | 93 | 4.7 | 21 | 6 | .286 | 72.0 | .665 |
| Chase Anderson | Det | sp | 31 | 30 | 0 | .000 | 0 | 12 | .400 | 109 | 3.6 | 24 | 6 | .250 | 96.1 | .614 |
| Tanner Anderson | Cle | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 6 | 4 | .667 | 13.3 | .587 |
| Victor Arano | LAA | mr | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 5 | 4 | .800 | 19.4 | .640 |
| Pedro Araujo | Tex | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 3 | 1 | .333 | 19.4 | .588 |
| Chris Archer | LAA | sp | 30 | 30 | 0 | .000 | 0 | 13 | .433 | 146 | 4.9 | 20 | 9 | .450 | 88.0 | .637 |
| Shawn Armstrong | NYY | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 19.1 | .721 |
| John Axford | ChW | mr | 36 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 20 | 4 | .200 | 19.0 | .617 |
| Pedro Baez | Sea | mr | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 26 | 4 | .154 | 17.6 | .616 |
| Sandy Baez | ChW | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 4 | 0 | .000 | 23.8 | .584 |
| Homer Bailey | KCR | sp | 33 | 16 | 1 | .063 | 0 | 6 | .375 | 91 | 5.7 | 11 | 2 | .182 | 96.4 | .625 |
| Danny Barnes | Tex | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 11 | 7 | .636 | 21.7 | .607 |
| Jacob Barnes | Tex | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 15 | 3 | .200 | 19.3 | .623 |
| Kyle Barraclough | Cle | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 20 | 11 | .550 | 18.6 | .589 |
| Anthony Bass | Oak | mr | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 2 | 0 | .000 | 23.0 | .685 |
| Chris Bassitt | ChW | sp | 30 | 11 | 0 | .000 | 0 | 5 | .455 | 54 | 4.9 | 14 | 3 | .214 | 102.4 | .601 |
| Trevor Bauer | Min | sp | 28 | 29 | 6 | .207 | 3 | 23 | .793 | 139 | 4.8 | 14 | 5 | .357 | 116.3 | .624 |
| Tyler Beede | NYY | sp | 26 | 6 | 0 | .000 | 0 | 1 | .167 | 30 | 5.0 | 4 | 1 | .250 | 73.2 | .574 |
| Jalen Beeks* | Mtl | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 12 | 3 | .250 | 24.9 | .602 |
| Dellin Betances | Sea | mr | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 11 | 5 | .455 | 18.4 | .625 |
| Chad Bettis | Bos | sp | 30 | 26 | 1 | .038 | 1 | 8 | .308 | 110 | 4.2 | 26 | 8 | .308 | 91.9 | .603 |
| Jesse Biddle* | KCR | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 16 | 3 | .188 | 22.3 | .622 |
| Ty Blach* | Bal | mr | 28 | 24 | 1 | .042 | 0 | 10 | .417 | 123 | 5.1 | 27 | 11 | .407 | 91.8 | .644 |
| Ray Black | Det | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 11 | 6 | .545 | 20.4 | .616 |
| Paul Blackburn | LAA | sp | 25 | 7 | 0 | .000 | 0 | 5 | .714 | 26 | 3.7 | 3 | 0 | .000 | 98.6 | .671 |
| Richard Bleier* | Bal | mr | 32 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 7 | 2 | .286 | 13.6 | .730 |
| Jerry Blevins* | Mtl | mr | 35 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 5 | 2 | .400 | 21.3 | .574 |
| Ryan Borucki* | Sea | sp | 25 | 11 | 0 | .000 | 0 | 5 | .455 | 66 | 6.0 | 8 | 0 | .000 | 95.5 | .598 |
| Matt Bowman | Mtl | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 3 | 1 | .333 | 31.4 | .652 |
| Chasen Bradford | Bos | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 23 | 9 | .391 | 22.0 | .647 |
| Archie Bradley | Bal | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 4 | 1 | .250 | 20.3 | .636 |
| John Brebbia |   | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 20 | 9 | .450 | 22.9 | .645 |
| Parker Bridwell | Bos | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 4 | 2 | .500 | 21.0 | .627 |
| Zach Britton* | Tex | mr | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 5 | 2 | .400 | 21.4 | .557 |
| Clay Buchholz |   | sp | 34 | 21 | 3 | .143 | 1 | 13 | .619 | 82 | 3.9 | 9 | 1 | .111 | 100.2 | .658 |
| Ryan Buchter* | Mtl | mr | 32 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 13 | 3 | .231 | 21.0 | .606 |
| Madison Bumgarner* | Mtl | sp | 29 | 25 | 7 | .280 | 3 | 12 | .480 | 106 | 4.2 | 14 | 8 | .571 | 111.4 | .631 |
| Aaron Bummer* | Sea | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 27 | 6 | .222 | 15.7 | .617 |
| Dylan Bundy | NYY | sp | 26 | 31 | 1 | .032 | 0 | 13 | .419 | 150 | 4.8 | 17 | 4 | .235 | 97.4 | .644 |
| Corbin Burnes | Was | mr | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 9 | 1 | .111 | 16.4 | .673 |
| Eddie Butler | Min | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 4 | 0 | .000 | 34.6 | .614 |
| Ty Buttrey | Tor | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 8 | 4 | .500 | 24.5 | .613 |
| Trevor Cahill | Tex | sp | 31 | 24 | 0 | .000 | 0 | 9 | .375 | 94 | 3.9 | 17 | 5 | .294 | 96.5 | .597 |
| Santiago Casilla | ChW | mr | 38 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 10 | 7 | .700 | 19.7 | .544 |
| Jose Castillo* | Tex | mr | 23 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 3 | 0 | .000 | 21.9 | .644 |
| Jhoulys Chacin | Cle | sp | 31 | 35 | 0 | .000 | 0 | 20 | .571 | 162 | 4.6 | 31 | 12 | .387 | 95.9 | .604 |
| Tyler Chatwood | Det | sp | 29 | 11 | 0 | .000 | 0 | 2 | .182 | 36 | 3.3 | 29 | 9 | .310 | 51.3 | .524 |
| Jesse Chavez | Was | mr | 35 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 20 | 9 | .450 | 24.5 | .661 |
| Wei-Yin Chen* | Det | sp | 33 | 30 | 0 | .000 | 0 | 11 | .367 | 123 | 4.1 | 26 | 8 | .308 | 89.6 | .636 |
| Tony Cingrani* | Oak | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 6 | 4 | .667 | 17.4 | .735 |
| Tyler Clippard | Sea | mr | 34 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 28 | 7 | .250 | 18.7 | .605 |
| A.J. Cole | LAA | mr | 27 | 5 | 0 | .000 | 0 | 0 | .000 | 14 | 2.8 | 6 | 1 | .167 | 72.0 | .613 |
| Gerrit Cole | Oak | sp | 28 | 32 | 2 | .063 | 1 | 18 | .563 | 158 | 4.9 | 29 | 6 | .207 | 107.9 | .631 |
| Louis Coleman | Was | mr | 33 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 19 | 6 | .316 | 20.6 | .613 |
| Bartolo Colon | Mtl | sp | 46 | 6 | 0 | .000 | 0 | 3 | .500 | 17 | 2.8 | 7 | 1 | .143 | 33.4 | .676 |
| Adam Conley* | Bos | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 19 | 4 | .211 | 21.7 | .639 |
| Dylan Covey | Mtl | sp | 27 | 16 | 1 | .063 | 0 | 8 | .500 | 71 | 4.4 | 11 | 3 | .273 | 88.4 | .604 |
| Zach Davies | KCR | sp | 26 | 17 | 3 | .176 | 1 | 12 | .706 | 74 | 4.4 | 7 | 3 | .429 | 94.1 | .654 |
| Austin Davis* | KCR | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 6 | 2 | .333 | 24.6 | .622 |
| Jorge de la Rosa* | Bal | mr | 38 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 19 | 5 | .263 | 22.8 | .577 |
| Enyel De Los Santos | Det | mr | 23 | 5 | 0 | .000 | 0 | 1 | .200 | 18 | 3.6 | 6 | 3 | .500 | 91.6 | .594 |
| Chris Devenski | NYY | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 2 | 0 | .000 | 27.0 | .722 |
| Edwin Diaz | Oak | cl | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 5 | 1 | .200 | 20.1 | .628 |
| Zach Eflin | Was | sp | 25 | 28 | 2 | .071 | 1 | 17 | .607 | 132 | 4.7 | 17 | 5 | .294 | 97.3 | .663 |
| Roenis Elias* | ChW | mr | 30 | 10 | 0 | .000 | 0 | 4 | .400 | 43 | 4.3 | 9 | 2 | .222 | 69.6 | .608 |
| Nathan Eovaldi | Det | sp | 29 | 25 | 0 | .000 | 0 | 11 | .440 | 95 | 3.8 | 14 | 4 | .286 | 90.6 | .675 |
| Robbie Erlin* | Tor | mr | 28 | 15 | 0 | .000 | 0 | 8 | .533 | 86 | 5.7 | 18 | 5 | .278 | 76.1 | .691 |
| Marco Estrada | Mtl | sp | 35 | 28 | 0 | .000 | 0 | 9 | .321 | 120 | 4.3 | 12 | 2 | .167 | 83.9 | .624 |
| Jeurys Familia | Tor | cl | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 27 | 13 | .481 | 19.1 | .608 |
| Erick Fedde | Min | sp | 26 | 7 | 0 | .000 | 0 | 2 | .286 | 28 | 4.0 | 4 | 2 | .500 | 87.4 | .629 |
| Heath Fillmyer | ChW | sp | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 1 | 0 | .000 | 15.0 | .638 |
| Brandon Finnegan* | NYY | sp | 26 | 3 | 0 | .000 | 0 | 0 | .000 | 5 | 1.7 | 2 | 1 | .500 | 35.0 | .571 |
| Jack Flaherty | NYY | sp | 23 | 30 | 1 | .033 | 0 | 17 | .567 | 121 | 4.0 | 21 | 1 | .048 | 105.0 | .626 |
| Brian Flynn* | Tex | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 34 | 12 | .353 | 30.3 | .587 |
| Mike Foltynewicz | Bal | sp | 27 | 31 | 2 | .065 | 1 | 25 | .806 | 122 | 3.9 | 16 | 4 | .250 | 104.6 | .640 |
| Sam Freeman* | Oak | mr | 32 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 13 | 2 | .154 | 24.2 | .603 |
| Max Fried* | KCR | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 8 | 0 | .000 | 18.3 | .588 |
| Carson Fulmer | NYY | sp | 25 | 6 | 0 | .000 | 0 | 0 | .000 | 13 | 2.2 | 4 | 1 | .250 | 78.7 | .578 |
| Michael Fulmer | Det | sp | 26 | 28 | 3 | .107 | 3 | 14 | .500 | 126 | 4.5 | 23 | 8 | .348 | 97.5 | .628 |
| Yovani Gallardo | Bos | sp | 33 | 16 | 0 | .000 | 0 | 5 | .313 | 72 | 4.5 | 17 | 3 | .176 | 89.8 | .595 |
| John Gant | KCR | sp | 26 | 23 | 0 | .000 | 0 | 16 | .696 | 96 | 4.2 | 9 | 3 | .333 | 98.8 | .607 |
| Jaime Garcia* | Tex | mr | 32 | 20 | 0 | .000 | 0 | 5 | .250 | 66 | 3.3 | 18 | 10 | .556 | 81.7 | .592 |
| Jarlin Garcia* | Was | mr | 26 | 6 | 0 | .000 | 0 | 4 | .667 | 22 | 3.7 | 4 | 1 | .250 | 84.0 | .626 |
| Yimi Garcia | Det | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 17.5 | .714 |
| Sam Gaviglio | KCR | sp | 29 | 27 | 0 | .000 | 0 | 15 | .556 | 112 | 4.1 | 15 | 7 | .467 | 99.7 | .641 |
| Domingo German | Cle | sp | 26 | 19 | 0 | .000 | 0 | 5 | .263 | 86 | 4.5 | 14 | 4 | .286 | 71.0 | .617 |
| Sean Gilmartin* | Was | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 21 | 3 | .143 | 12.8 | .595 |
| Lucas Giolito | ChW | sp | 24 | 31 | 1 | .032 | 0 | 11 | .355 | 174 | 5.6 | 31 | 10 | .323 | 97.7 | .580 |
| Zack Godley | NYY | sp | 29 | 32 | 0 | .000 | 0 | 13 | .406 | 139 | 4.3 | 35 | 9 | .257 | 103.3 | .596 |
| Luiz Gohara* |   | mr | 22 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 9 | 4 | .444 | 32.9 | .600 |
| Marco Gonzales* | Sea | sp | 27 | 30 | 2 | .067 | 0 | 16 | .533 | 136 | 4.5 | 14 | 3 | .214 | 95.2 | .652 |
| Gio Gonzalez* | LAA | sp | 33 | 32 | 0 | .000 | 0 | 12 | .375 | 159 | 5.0 | 31 | 15 | .484 | 97.0 | .604 |
| Sonny Gray | KCR | sp | 29 | 26 | 0 | .000 | 0 | 13 | .500 | 132 | 5.1 | 18 | 6 | .333 | 91.5 | .614 |
| Chad Green | NYY | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 11 | 5 | .455 | 29.0 | .678 |
| Shane Greene | LAA | cl | 30 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 14 | 4 | .286 | 21.2 | .617 |
| Robert Gsellman | Cle | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 18 | 4 | .222 | 21.6 | .649 |
| Junior Guerra | Oak | sp | 34 | 30 | 0 | .000 | 0 | 6 | .200 | 117 | 3.9 | 22 | 8 | .364 | 87.6 | .608 |
| Josh Hader* | NYY | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 7 | 3 | .429 | 30.1 | .626 |
| Brad Hand* | Oak | cl | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 28 | 10 | .357 | 23.3 | .636 |
| J.A. Happ* | Sea | sp | 36 | 31 | 0 | .000 | 0 | 13 | .419 | 178 | 5.7 | 17 | 6 | .353 | 94.4 | .646 |
| Will Harris | Det | mr | 34 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 14 | 0 | .000 | 17.5 | .647 |
| Jeremy Hellickson | Min | sp | 32 | 23 | 0 | .000 | 0 | 11 | .478 | 100 | 4.3 | 14 | 5 | .357 | 89.3 | .657 |
| Heath Hembree | Det | mr | 30 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 11 | 1 | .091 | 24.3 | .602 |
| Kyle Hendricks |   | sp | 29 | 33 | 4 | .121 | 2 | 22 | .667 | 147 | 4.5 | 21 | 7 | .333 | 99.8 | .671 |
| Elieser Hernandez | KCR | mr | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 12 | 5 | .417 | 27.2 | .627 |
| Kelvin Herrera | Sea | cl | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 11 | 1 | .091 | 15.3 | .688 |
| Trevor Hildenberger | Tor | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 31 | 9 | .290 | 22.4 | .639 |
| Rich Hill* | ChW | sp | 39 | 28 | 1 | .036 | 1 | 11 | .393 | 166 | 5.9 | 18 | 3 | .167 | 102.8 | .637 |
| Tim Hill* | Mtl | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 28 | 11 | .393 | 15.8 | .565 |
| Yoshihisa Hirano | Bal | mr | 35 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 10 | 5 | .500 | 18.8 | .641 |
| Derek Holland* | ChW | sp | 32 | 30 | 0 | .000 | 0 | 13 | .433 | 147 | 4.9 | 32 | 7 | .219 | 84.3 | .613 |
| Clay Holmes | LAA | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 2 | 0 | .000 | 31.5 | .538 |
| Dakota Hudson | KCR | mr | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 2 | 1 | .500 | 27.7 | .590 |
| Daniel Hudson | Oak | mr | 32 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 11 | 2 | .182 | 33.2 | .638 |
| Tommy Hunter | ChW | mr | 32 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 26 | 15 | .577 | 20.2 | .664 |
| Edwin Jackson | Sea | sp | 35 | 20 | 0 | .000 | 0 | 7 | .350 | 94 | 4.7 | 15 | 6 | .400 | 95.3 | .612 |
| Luke Jackson | Bos | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 39 | 20 | .513 | 25.6 | .588 |
| Josh James | Mtl | sp | 26 | 7 | 0 | .000 | 0 | 3 | .429 | 21 | 3.0 | 5 | 1 | .200 | 86.4 | .617 |
| Dan Jennings* | NYY | mr | 32 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 3 | 0 | .000 | 17.1 | .638 |
| Joe Jimenez | Cle | mr | 24 | 1 | 0 | .000 | 0 | 0 | .000 | 6 | 6.0 | 24 | 8 | .333 | 18.0 | .640 |
| Jim Johnson | Min | mr | 36 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 11 | 2 | .182 | 20.3 | .628 |
| Pierce Johnson | Sea | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 6 | 0 | .000 | 30.8 | .609 |
| Nate Jones | Oak | mr | 33 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 10 | 5 | .500 | 23.4 | .604 |
| Jake Junis | KCR | sp | 26 | 30 | 3 | .100 | 1 | 18 | .600 | 122 | 4.1 | 10 | 3 | .300 | 98.5 | .650 |
| Tommy Kahnle | Tex | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 5 | 0 | .000 | 25.1 | .574 |
| Brad Keller | Cle | sp | 23 | 24 | 0 | .000 | 0 | 12 | .500 | 170 | 7.1 | 22 | 6 | .273 | 94.8 | .618 |
| Shawn Kelley | NYY | mr | 35 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 7 | 3 | .429 | 17.8 | .682 |
| Casey Kelly | Was | mr | 29 | 6 | 0 | .000 | 0 | 3 | .500 | 36 | 6.0 | 4 | 2 | .500 | 90.2 | .710 |
| Ian Kennedy | Tor | sp | 34 | 26 | 0 | .000 | 0 | 6 | .231 | 117 | 4.5 | 18 | 7 | .389 | 87.2 | .633 |
| Dallas Keuchel* | LAA | sp | 31 | 34 | 0 | .000 | 0 | 17 | .500 | 164 | 4.8 | 21 | 9 | .429 | 90.1 | .647 |
| Brandon Kintzler | Sea | mr | 34 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 19 | 5 | .263 | 18.2 | .660 |
| Matt Koch | Mtl | sp | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 19.0 | .789 |
| Wade LeBlanc* | Oak | sp | 34 | 31 | 0 | .000 | 0 | 16 | .516 | 151 | 4.9 | 24 | 8 | .333 | 96.4 | .635 |
| Jose Leclerc | Det | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 19.8 | .591 |
| Dominic Leone | Det | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 9 | 4 | .444 | 22.5 | .683 |
| Jon Lester* | ChW | sp | 35 | 32 | 1 | .031 | 0 | 15 | .469 | 190 | 5.9 | 29 | 9 | .310 | 104.2 | .626 |
| Artie Lewicki | Bos | mr | 27 | 4 | 0 | .000 | 0 | 1 | .250 | 8 | 2.0 | 5 | 1 | .200 | 43.0 | .617 |
| Adam Liberatore* | ChW | mr | 32 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 3 | 2 | .667 | 16.8 | .716 |
| Ben Lively | Mtl | sp | 27 | 1 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 8 | 3 | .375 | 33.1 | .622 |
| Jorge Lopez | Cle | mr | 26 | 6 | 0 | .000 | 0 | 2 | .333 | 40 | 6.7 | 12 | 4 | .333 | 65.2 | .591 |
| Pablo Lopez | Mtl | sp | 23 | 14 | 3 | .214 | 2 | 10 | .714 | 64 | 4.6 | 3 | 2 | .667 | 102.2 | .657 |
| Yoan Lopez | Cle | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 6 | 1 | .167 | 11.6 | .567 |
| Aaron Loup* | Tor | mr | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 9 | 3 | .333 | 17.3 | .594 |
| Seth Lugo | Bal | mr | 29 | 10 | 1 | .100 | 0 | 7 | .700 | 72 | 7.2 | 12 | 2 | .167 | 59.7 | .672 |
| Jordan Lyles | Was | mr | 28 | 12 | 0 | .000 | 0 | 7 | .583 | 50 | 4.2 | 3 | 1 | .333 | 91.8 | .651 |
| Lance Lynn | Bos | sp | 32 | 28 | 0 | .000 | 0 | 9 | .321 | 124 | 4.4 | 22 | 7 | .318 | 102.4 | .613 |
| Sean Manaea* | Tex | sp | 27 | 30 | 1 | .033 | 0 | 14 | .467 | 104 | 3.5 | 17 | 7 | .412 | 91.3 | .662 |
| Carlos Martinez | Min | sp | 27 | 17 | 1 | .059 | 1 | 11 | .647 | 98 | 5.8 | 8 | 1 | .125 | 96.4 | .603 |
| Phil Maton | KCR | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 6 | 2 | .333 | 18.3 | .638 |
| Trevor May | NYY | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 1 | 0 | .000 | 20.1 | .674 |
| Mike Mayers | Bos | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 28 | 9 | .321 | 25.8 | .606 |
| Tim Mayza* | Tex | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 12 | 0 | .000 | 22.1 | .636 |
| Zach McAllister | Tor | mr | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 13 | 6 | .462 | 21.1 | .635 |
| Brandon McCarthy | Mtl | sp | 35 | 14 | 0 | .000 | 0 | 1 | .071 | 43 | 3.1 | 17 | 5 | .294 | 71.6 | .625 |
| Kevin McCarthy | LAA | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 9 | 1 | .111 | 21.2 | .661 |
| T.J. McFarland* |   | mr | 30 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 20 | 2 | .100 | 19.8 | .644 |
| Jake McGee* | Min | mr | 32 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 6 | 2 | .333 | 19.9 | .620 |
| Mark Melancon | Min | mr | 34 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 3 | 1 | .333 | 20.5 | .655 |
| Yohander Mendez* | Oak | sp | 24 | 10 | 0 | .000 | 0 | 4 | .400 | 47 | 4.7 | 5 | 3 | .600 | 86.9 | .572 |
| Daniel Mengden | Was | sp | 26 | 18 | 2 | .111 | 0 | 7 | .389 | 64 | 3.6 | 12 | 5 | .417 | 94.7 | .636 |
| Keynan Middleton | Cle | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 4 | 4 | 1.000 | 25.0 | .634 |
| Wade Miley* | Oak | sp | 32 | 20 | 0 | .000 | 0 | 9 | .450 | 74 | 3.7 | 17 | 1 | .059 | 90.3 | .628 |
| Andrew Miller* | Tor | mr | 34 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 25 | 7 | .280 | 17.8 | .572 |
| Justin Miller | Bal | mr | 32 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 13 | 9 | .692 | 28.1 | .629 |
| Shelby Miller | Tex | sp | 28 | 4 | 0 | .000 | 0 | 0 | .000 | 15 | 3.8 | 2 | 0 | .000 | 55.5 | .662 |
| Alec Mills | ChW | mr | 27 | 6 | 0 | .000 | 0 | 5 | .833 | 28 | 4.7 | 6 | 0 | .000 | 109.2 | .638 |
| Juan Minaya | Oak | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 7 | 1 | .143 | 28.5 | .597 |
| Mike Minor* | Was | sp | 31 | 30 | 2 | .067 | 0 | 16 | .533 | 119 | 4.0 | 17 | 8 | .471 | 94.8 | .653 |
| A.J. Minter* | LAA | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 19 | 2 | .105 | 19.1 | .617 |
| Ariel Miranda* | Was | sp | 30 | 4 | 0 | .000 | 0 | 0 | .000 | 24 | 6.0 | 5 | 3 | .600 | 64.5 | .597 |
| Bryan Mitchell | Mtl | sp | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 10 | 3 | .300 | 34.7 | .577 |
| Jordan Montgomery* | Bal | sp | 26 | 10 | 0 | .000 | 0 | 3 | .300 | 54 | 5.4 | 8 | 4 | .500 | 85.1 | .604 |
| Matt Moore* | Tex | mr | 30 | 16 | 0 | .000 | 0 | 4 | .250 | 55 | 3.4 | 21 | 5 | .238 | 59.9 | .620 |
| Adam Morgan* | Det | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 15 | 4 | .267 | 19.1 | .640 |
| Reyes Moronta |   | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 15 | 4 | .267 | 20.6 | .605 |
| Gabriel Moya* |   | mr | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 11 | 5 | .455 | 16.8 | .611 |
| Peter Moylan | Mtl | mr | 40 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 2 | 0 | .000 | 20.6 | .670 |
| Hector Neris | Det | mr | 30 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 11 | 3 | .273 | 20.2 | .617 |
| Pat Neshek | Min | mr | 38 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 2 | 0 | .000 | 18.3 | .673 |
| Juan Nicasio | Tex | mr | 32 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 4 | 1 | .250 | 26.2 | .690 |
| Bud Norris | Min | cl | 34 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 17 | 3 | .176 | 20.3 | .629 |
| James Norwood | ChW | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 6 | 4 | .667 | 24.6 | .604 |
| Vidal Nuno* | Min | mr | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 10 | 2 | .200 | 20.6 | .679 |
| Darren O'Day | Sea | mr | 36 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 3 | 0 | .000 | 14.0 | .735 |
| Trevor Oaks | Oak | sp | 26 | 4 | 0 | .000 | 0 | 1 | .250 | 10 | 2.5 | 8 | 0 | .000 | 79.8 | .596 |
| Jake Odorizzi | Sea | sp | 29 | 32 | 0 | .000 | 0 | 13 | .406 | 151 | 4.7 | 22 | 2 | .091 | 94.9 | .605 |
| Seung Hwan Oh | Tor | mr | 36 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 24 | 6 | .250 | 21.4 | .630 |
| Shohei Ohtani | ChW | dh | 24 | 14 | 0 | .000 | 0 | 4 | .286 | 75 | 5.4 | 18 | 3 | .167 | 100.2 | .577 |
| Steven Okert* | Det | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 3 | 2 | .667 | 17.0 | .676 |
| Roberto Osuna | Tor | cl | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 5 | 1 | .200 | 13.6 | .637 |
| Dan Otero | KCR | mr | 34 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 16 | 7 | .438 | 13.6 | .746 |
| Emilio Pagan | Was | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 25 | 11 | .440 | 26.2 | .619 |
| Thomas Pannone* | Oak | sp | 25 | 9 | 0 | .000 | 0 | 4 | .444 | 22 | 2.4 | 0 | 0 | .000 | 94.3 | .623 |
| Blake Parker | Min | mr | 34 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 20 | 5 | .250 | 25.9 | .654 |
| James Paxton* | Sea | sp | 30 | 30 | 1 | .033 | 0 | 17 | .567 | 143 | 4.8 | 18 | 8 | .444 | 97.0 | .653 |
| Brad Peacock | Bal | mr | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 8 | 2 | .250 | 17.8 | .620 |
| Freddy Peralta | Min | sp | 23 | 18 | 0 | .000 | 0 | 10 | .556 | 65 | 3.6 | 3 | 1 | .333 | 97.7 | .598 |
| Luis Perdomo | Mtl | sp | 26 | 14 | 0 | .000 | 0 | 2 | .143 | 46 | 3.3 | 15 | 7 | .467 | 89.7 | .621 |
| Cionel Perez* | Det | mr | 23 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 6 | 0 | .000 | 15.2 | .557 |
| Yusmeiro Petit | LAA | mr | 34 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 8 | 2 | .250 | 21.6 | .667 |
| Nick Pivetta | Was | sp | 26 | 32 | 3 | .094 | 1 | 15 | .469 | 166 | 5.2 | 23 | 5 | .217 | 98.1 | .643 |
| Drew Pomeranz* | Sea | mr | 30 | 1 | 0 | .000 | 0 | 0 | .000 | 5 | 5.0 | 2 | 1 | .500 | 32.1 | .551 |
| Daniel Poncedeleon | NYY | mr | 27 | 8 | 0 | .000 | 0 | 3 | .375 | 38 | 4.8 | 6 | 2 | .333 | 94.3 | .638 |
| Ryan Pressly | Was | mr | 30 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 7 | 0 | .000 | 21.7 | .657 |
| Erasmo Ramirez | Tor | sp | 29 | 14 | 1 | .071 | 0 | 6 | .429 | 72 | 5.1 | 13 | 5 | .385 | 90.1 | .642 |
| Noe Ramirez | Tex | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 38 | 14 | .368 | 27.4 | .615 |
| Yefry Ramirez | KCR | sp | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 6 | 3 | .500 | 37.2 | .616 |
| A.J. Ramos | Mtl | mr | 32 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 8 | 1 | .125 | 20.1 | .567 |
| Cody Reed* | Tex | mr | 26 | 11 | 0 | .000 | 0 | 2 | .182 | 40 | 3.6 | 11 | 2 | .182 | 89.4 | .623 |
| Garrett Richards |   | sp | 31 | 20 | 0 | .000 | 0 | 6 | .300 | 88 | 4.4 | 19 | 3 | .158 | 96.2 | .582 |
| Trevor Richards | Mtl | sp | 26 | 29 | 0 | .000 | 0 | 14 | .483 | 98 | 3.4 | 11 | 2 | .182 | 90.7 | .631 |
| Tanner Roark | Bal | sp | 32 | 30 | 1 | .033 | 0 | 16 | .533 | 146 | 4.9 | 15 | 3 | .200 | 93.7 | .633 |
| David Robertson | NYY | mr | 34 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 5 | 3 | .600 | 23.8 | .629 |
| Hansel Robles | Min | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 17 | 4 | .235 | 20.2 | .626 |
| Fernando Rodney | Bos | cl | 42 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 31 | 11 | .355 | 20.2 | .611 |
| Dereck Rodriguez | KCR | sp | 27 | 23 | 2 | .087 | 0 | 14 | .609 | 112 | 4.9 | 13 | 5 | .385 | 95.9 | .634 |
| Eduardo Rodriguez* | Bos | sp | 26 | 26 | 0 | .000 | 0 | 15 | .577 | 116 | 4.5 | 15 | 5 | .333 | 97.6 | .622 |
| Jefry Rodriguez | KCR | sp | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 13 | 3 | .231 | 29.4 | .572 |
| Richard Rodriguez | Was | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 27 | 10 | .370 | 20.0 | .649 |
| Chaz Roe | NYY | mr | 32 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 22 | 6 | .273 | 18.7 | .600 |
| Taylor Rogers* | Sea | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 16 | 1 | .063 | 14.2 | .678 |
| Sergio Romo | Cle | mr | 36 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 27 | 6 | .222 | 18.2 | .614 |
| Randy Rosario* | Cle | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 36 | 9 | .250 | 13.3 | .596 |
| Chris Rusin* |   | mr | 32 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 4 | 2 | .500 | 19.1 | .616 |
| Connor Sadzeck | ChW | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 8 | 3 | .375 | 16.3 | .487 |
| Jeff Samardzija | Tor | sp | 34 | 14 | 0 | .000 | 0 | 4 | .286 | 46 | 3.3 | 16 | 8 | .500 | 77.9 | .565 |
| Aaron Sanchez | Min | sp | 26 | 9 | 0 | .000 | 0 | 5 | .556 | 22 | 2.4 | 7 | 2 | .286 | 85.3 | .618 |
| Anibal Sanchez | Min | sp | 35 | 28 | 0 | .000 | 0 | 11 | .393 | 134 | 4.8 | 22 | 6 | .273 | 92.1 | .639 |
| Edgar Santana | Oak | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 6 | 1 | .167 | 23.7 | .648 |
| Jaime Schultz | Min | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 2 | 2 | 1.000 | 34.3 | .583 |
| Tanner Scott* | KCR | mr | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 21 | 1 | .048 | 20.8 | .585 |
| Luis Severino | NYY | sp | 25 | 32 | 1 | .031 | 1 | 18 | .563 | 137 | 4.3 | 26 | 8 | .308 | 108.0 | .649 |
| Justus Sheffield* | Det | mr | 23 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 2 | 1 | .500 | 5.5 | .364 |
| Jimmie Sherfy | Det | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 6 | 1 | .167 | 22.3 | .553 |
| James Shields | Bos | sp | 37 | 26 | 4 | .154 | 1 | 14 | .538 | 107 | 4.1 | 19 | 7 | .368 | 102.9 | .622 |
| Matt Shoemaker | LAA | sp | 32 | 10 | 0 | .000 | 0 | 4 | .400 | 41 | 4.1 | 5 | 3 | .600 | 88.0 | .658 |
| Chasen Shreve* | KCR | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 13 | 3 | .231 | 21.5 | .612 |
| Lucas Sims | Det | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 4 | 0 | .000 | 26.9 | .604 |
| Tony Sipp* | ChW | mr | 35 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 35 | 6 | .171 | 16.8 | .586 |
| Tyler Skaggs* | Tex | sp | 27 | 28 | 0 | .000 | 0 | 10 | .357 | 103 | 3.7 | 22 | 4 | .182 | 93.6 | .645 |
| Carson Smith | NYY | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 2 | 2 | 1.000 | 21.0 | .592 |
| Drew Smith | Sea | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 23.0 | .609 |
| Chad Sobotka | Tor | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 6 | 2 | .333 | 21.5 | .597 |
| Joakim Soria | Oak | mr | 35 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 18 | 3 | .167 | 20.6 | .642 |
| Ryne Stanek | Bos | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 12 | 9 | .750 | 22.1 | .668 |
| Drew Steckenrider | NYY | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 16 | 3 | .188 | 23.0 | .633 |
| Brock Stewart | Det | mr | 27 | 2 | 0 | .000 | 0 | 0 | .000 | 7 | 3.5 | 5 | 1 | .200 | 24.3 | .608 |
| Kohl Stewart | Tor | sp | 24 | 4 | 0 | .000 | 0 | 1 | .250 | 20 | 5.0 | 5 | 2 | .400 | 56.5 | .578 |
| Robert Stock | Mtl | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 5 | 2 | .400 | 23.2 | .629 |
| Dan Straily | Oak | sp | 30 | 26 | 3 | .115 | 1 | 14 | .538 | 110 | 4.2 | 17 | 7 | .412 | 97.5 | .620 |
| Daniel Stumpf* | Cle | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 14 | 4 | .286 | 12.2 | .566 |
| Andrew Suarez* | Bos | sp | 26 | 30 | 1 | .033 | 1 | 16 | .533 | 126 | 4.2 | 19 | 2 | .105 | 97.7 | .636 |
| Noah Syndergaard | Tor | sp | 26 | 29 | 2 | .069 | 1 | 16 | .552 | 125 | 4.3 | 23 | 8 | .348 | 107.4 | .663 |
| Jameson Taillon | Min | sp | 27 | 32 | 1 | .031 | 1 | 18 | .563 | 165 | 5.2 | 21 | 8 | .381 | 99.7 | .664 |
| Julio Teheran | Bal | sp | 28 | 30 | 0 | .000 | 0 | 13 | .433 | 148 | 4.9 | 15 | 3 | .200 | 96.4 | .606 |
| Jake Thompson | Tex | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 1 | 0 | .000 | 31.6 | .557 |
| Blake Treinen | KCR | cl | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 1 | 1 | 1.000 | 15.0 | .659 |
| Lou Trivino | Cle | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 12 | 3 | .250 | 20.5 | .626 |
| Nick Tropeano | Was | sp | 28 | 18 | 0 | .000 | 0 | 9 | .500 | 74 | 4.1 | 10 | 5 | .500 | 88.8 | .604 |
| Sam Tuivailala | KCR | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 12 | 2 | .167 | 16.8 | .635 |
| Jose Urena | Det | sp | 27 | 31 | 0 | .000 | 0 | 18 | .581 | 129 | 4.2 | 19 | 7 | .368 | 94.6 | .645 |
| Felipe Vazquez* | Cle | cl | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 17.4 | .655 |
| Pat Venditte* | Oak | mr | 34 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 3 | 1 | .333 | 19.8 | .641 |
| Justin Verlander | Cle | sp | 36 | 35 | 1 | .029 | 0 | 22 | .629 | 189 | 5.4 | 21 | 7 | .333 | 102.2 | .677 |
| Arodys Vizcaino |   | cl | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 20 | 7 | .350 | 22.7 | .587 |
| Michael Wacha | Tex | sp | 27 | 19 | 0 | .000 | 0 | 6 | .316 | 80 | 4.2 | 10 | 3 | .300 | 89.9 | .585 |
| Adam Wainwright | Cle | sp | 37 | 9 | 0 | .000 | 0 | 2 | .222 | 31 | 3.4 | 10 | 6 | .600 | 78.7 | .607 |
| Taijuan Walker | Sea | sp | 26 | 7 | 0 | .000 | 0 | 2 | .286 | 38 | 5.4 | 8 | 2 | .250 | 88.4 | .591 |
| Adam Warren | Bal | mr | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 20 | 7 | .350 | 24.0 | .611 |
| J.B. Wendelken | ChW | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 20.7 | .641 |
| Taylor Williams | LAA | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 8 | 4 | .500 | 23.2 | .610 |
| Trevor Williams | LAA | sp | 27 | 31 | 0 | .000 | 0 | 19 | .613 | 142 | 4.6 | 32 | 10 | .313 | 98.4 | .627 |
| Alex Wilson | ChW | mr | 32 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 16 | 2 | .125 | 18.3 | .650 |
| Justin Wilson* | Bal | mr | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 18 | 6 | .333 | 22.3 | .570 |
| Trey Wingenter | Tor | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 14 | 2 | .143 | 20.6 | .551 |
| Daniel Winkler | ChW | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 28 | 8 | .286 | 17.8 | .625 |
| Nick Wittgren | Sea | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 9 | 4 | .444 | 20.1 | .638 |
| Alex Wood* | Tor | sp | 28 | 31 | 0 | .000 | 0 | 15 | .484 | 124 | 4.0 | 27 | 14 | .519 | 88.9 | .645 |
| Blake Wood |   | mr | 33 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 5 | 1 | .200 | 19.0 | .584 |
| Hunter Wood | Tor | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 17 | 4 | .235 | 33.5 | .630 |
| Brandon Woodruff | Cle | mr | 26 | 10 | 0 | .000 | 0 | 3 | .300 | 52 | 5.2 | 4 | 1 | .250 | 88.4 | .669 |
| Steven Wright | Tex | mr | 34 | 10 | 0 | .000 | 0 | 8 | .800 | 54 | 5.4 | 3 | 0 | .000 | 106.3 | .581 |
| Jimmy Yacabonis | KCR | sp | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 2 | 1 | .500 | 28.6 | .567 |
| Ryan Yarbrough* | Mtl | mr | 27 | 8 | 0 | .000 | 0 | 4 | .500 | 33 | 4.1 | 24 | 15 | .625 | 49.5 | .633 |
| Daniel Zamora* | Tex | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 5 | 3 | .600 | 16.8 | .634 |
| Jordan Zimmermann | Bal | sp | 33 | 27 | 0 | .000 | 0 | 8 | .296 | 135 | 5.0 | 13 | 3 | .231 | 91.6 | .659 |
| Relief |
| Name | Team | P | Age | SVO | S | SV% | BS | BS% | HLD | IR | IRS | IR% | G | GR | GF | NP/G | STR% |
| Matt Albers | Det | mr | 36 | 0 | 0 | .000 | 0 | .000 | 0 | 2 | 0 | .000 | 5 | 5 | 2 | 22.2 | .586 |
| Scott Alexander* | Tex | mr | 29 | 14 | 8 | .571 | 5 | .357 | 7 | 31 | 5 | .161 | 55 | 55 | 22 | 19.4 | .637 |
| Cody Allen | LAA | cl | 30 | 7 | 4 | .571 | 2 | .286 | 7 | 31 | 11 | .355 | 56 | 56 | 23 | 22.6 | .602 |
| Dan Altavilla | Cle | mr | 26 | 1 | 1 | 1.000 | 0 | .000 | 1 | 4 | 0 | .000 | 15 | 15 | 8 | 26.3 | .596 |
| Jose Alvarez* | LAA | mr | 30 | 6 | 4 | .667 | 1 | .167 | 6 | 14 | 4 | .286 | 17 | 17 | 6 | 17.8 | .594 |
| Brett Anderson* | Tor | sp | 31 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 21 | 1 | 1 | 72.0 | .665 |
| Chase Anderson | Det | sp | 31 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 30 | 0 | 0 | 96.1 | .614 |
| Tanner Anderson | Cle | mr | 26 | 0 | 0 | .000 | 0 | .000 | 1 | 3 | 1 | .333 | 6 | 6 | 2 | 13.3 | .587 |
| Victor Arano | LAA | mr | 24 | 2 | 1 | .500 | 1 | .500 | 5 | 31 | 6 | .194 | 36 | 36 | 15 | 19.4 | .640 |
| Pedro Araujo | Tex | mr | 25 | 2 | 2 | 1.000 | 0 | .000 | 0 | 4 | 0 | .000 | 5 | 5 | 3 | 19.4 | .588 |
| Chris Archer | LAA | sp | 30 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 30 | 0 | 0 | 88.0 | .637 |
| Shawn Armstrong | NYY | mr | 28 | 0 | 0 | .000 | 0 | .000 | 1 | 8 | 2 | .250 | 9 | 9 | 3 | 19.1 | .721 |
| John Axford | ChW | mr | 36 | 6 | 2 | .333 | 3 | .500 | 8 | 29 | 6 | .207 | 52 | 52 | 19 | 19.0 | .617 |
| Pedro Baez | Sea | mr | 31 | 10 | 5 | .500 | 3 | .300 | 14 | 35 | 8 | .229 | 54 | 54 | 11 | 17.6 | .616 |
| Sandy Baez | ChW | mr | 25 | 1 | 1 | 1.000 | 0 | .000 | 2 | 12 | 4 | .333 | 8 | 8 | 2 | 23.8 | .584 |
| Homer Bailey | KCR | sp | 33 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 16 | 0 | 0 | 96.4 | .625 |
| Danny Barnes | Tex | mr | 29 | 0 | 0 | .000 | 0 | .000 | 4 | 18 | 9 | .500 | 24 | 24 | 2 | 21.7 | .607 |
| Jacob Barnes | Tex | mr | 29 | 10 | 6 | .600 | 3 | .300 | 4 | 29 | 11 | .379 | 44 | 44 | 20 | 19.3 | .623 |
| Kyle Barraclough | Cle | mr | 29 | 1 | 0 | .000 | 1 | 1.000 | 1 | 14 | 5 | .357 | 27 | 27 | 7 | 18.6 | .589 |
| Anthony Bass | Oak | mr | 31 | 0 | 0 | .000 | 0 | .000 | 0 | 5 | 1 | .200 | 8 | 8 | 3 | 23.0 | .685 |
| Chris Bassitt | ChW | sp | 30 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 11 | 0 | 0 | 102.4 | .601 |
| Trevor Bauer | Min | sp | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 29 | 0 | 0 | 116.3 | .624 |
| Tyler Beede | NYY | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 6 | 0 | 0 | 73.2 | .574 |
| Jalen Beeks* | Mtl | mr | 25 | 1 | 1 | 1.000 | 0 | .000 | 3 | 28 | 10 | .357 | 38 | 38 | 23 | 24.9 | .602 |
| Dellin Betances | Sea | mr | 31 | 43 | 34 | .791 | 9 | .209 | 3 | 23 | 5 | .217 | 64 | 64 | 54 | 18.4 | .625 |
| Chad Bettis | Bos | sp | 30 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 27 | 1 | 1 | 91.9 | .603 |
| Jesse Biddle* | KCR | mr | 27 | 2 | 1 | .500 | 1 | .500 | 15 | 24 | 8 | .333 | 33 | 33 | 9 | 22.3 | .622 |
| Ty Blach* | Bal | mr | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 24 | 0 | 0 | 91.8 | .644 |
| Ray Black | Det | mr | 29 | 1 | 0 | .000 | 0 | .000 | 1 | 16 | 4 | .250 | 17 | 17 | 5 | 20.4 | .616 |
| Paul Blackburn | LAA | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 7 | 0 | 0 | 98.6 | .671 |
| Richard Bleier* | Bal | mr | 32 | 2 | 1 | .500 | 1 | .500 | 5 | 23 | 7 | .304 | 28 | 28 | 12 | 13.6 | .730 |
| Jerry Blevins* | Mtl | mr | 35 | 2 | 1 | .500 | 1 | .500 | 2 | 9 | 2 | .222 | 15 | 15 | 5 | 21.3 | .574 |
| Ryan Borucki* | Sea | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 11 | 0 | 0 | 95.5 | .598 |
| Matt Bowman | Mtl | mr | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 14 | 5 | .357 | 13 | 13 | 5 | 31.4 | .652 |
| Chasen Bradford | Bos | mr | 29 | 4 | 2 | .500 | 2 | .500 | 4 | 41 | 18 | .439 | 48 | 48 | 18 | 22.0 | .647 |
| Archie Bradley | Bal | mr | 26 | 14 | 11 | .786 | 3 | .214 | 8 | 31 | 8 | .258 | 59 | 59 | 40 | 20.3 | .636 |
| John Brebbia |   | mr | 29 | 2 | 1 | .500 | 1 | .500 | 9 | 29 | 12 | .414 | 40 | 40 | 11 | 22.9 | .645 |
| Parker Bridwell | Bos | mr | 27 | 1 | 0 | .000 | 1 | 1.000 | 0 | 10 | 8 | .800 | 6 | 6 | 3 | 21.0 | .627 |
| Zach Britton* | Tex | mr | 31 | 6 | 4 | .667 | 2 | .333 | 1 | 26 | 7 | .269 | 39 | 39 | 27 | 21.4 | .557 |
| Clay Buchholz |   | sp | 34 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 21 | 0 | 0 | 100.2 | .658 |
| Ryan Buchter* | Mtl | mr | 32 | 6 | 2 | .333 | 2 | .333 | 7 | 10 | 6 | .600 | 31 | 31 | 10 | 21.0 | .606 |
| Madison Bumgarner* | Mtl | sp | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 25 | 0 | 0 | 111.4 | .631 |
| Aaron Bummer* | Sea | mr | 25 | 4 | 1 | .250 | 2 | .500 | 6 | 32 | 11 | .344 | 41 | 41 | 13 | 15.7 | .617 |
| Dylan Bundy | NYY | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 31 | 0 | 0 | 97.4 | .644 |
| Corbin Burnes | Was | mr | 24 | 13 | 11 | .846 | 2 | .154 | 7 | 31 | 8 | .258 | 41 | 41 | 21 | 16.4 | .673 |
| Eddie Butler | Min | mr | 28 | 1 | 1 | 1.000 | 0 | .000 | 1 | 10 | 2 | .200 | 17 | 17 | 9 | 34.6 | .614 |
| Ty Buttrey | Tor | mr | 26 | 4 | 2 | .500 | 2 | .500 | 4 | 10 | 5 | .500 | 13 | 13 | 3 | 24.5 | .613 |
| Trevor Cahill | Tex | sp | 31 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 24 | 0 | 0 | 96.5 | .597 |
| Santiago Casilla | ChW | mr | 38 | 8 | 6 | .750 | 1 | .125 | 3 | 35 | 10 | .286 | 32 | 32 | 20 | 19.7 | .544 |
| Jose Castillo* | Tex | mr | 23 | 3 | 2 | .667 | 1 | .333 | 8 | 20 | 2 | .100 | 31 | 31 | 15 | 21.9 | .644 |
| Jhoulys Chacin | Cle | sp | 31 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 35 | 0 | 0 | 95.9 | .604 |
| Tyler Chatwood | Det | sp | 29 | 0 | 0 | .000 | 0 | .000 | 1 | 19 | 5 | .263 | 41 | 30 | 14 | 51.3 | .524 |
| Jesse Chavez | Was | mr | 35 | 6 | 2 | .333 | 4 | .667 | 13 | 40 | 16 | .400 | 66 | 66 | 24 | 24.5 | .661 |
| Wei-Yin Chen* | Det | sp | 33 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 30 | 0 | 0 | 89.6 | .636 |
| Tony Cingrani* | Oak | mr | 29 | 1 | 1 | 1.000 | 0 | .000 | 2 | 7 | 2 | .286 | 16 | 16 | 6 | 17.4 | .735 |
| Tyler Clippard | Sea | mr | 34 | 8 | 1 | .125 | 7 | .875 | 14 | 46 | 13 | .283 | 67 | 67 | 11 | 18.7 | .605 |
| A.J. Cole | LAA | mr | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 2 | 1 | .500 | 8 | 3 | 0 | 72.0 | .613 |
| Gerrit Cole | Oak | sp | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 32 | 0 | 0 | 107.9 | .631 |
| Louis Coleman | Was | mr | 33 | 2 | 1 | .500 | 0 | .000 | 5 | 29 | 13 | .448 | 43 | 43 | 16 | 20.6 | .613 |
| Bartolo Colon | Mtl | sp | 46 | 4 | 3 | .750 | 1 | .250 | 1 | 17 | 9 | .529 | 28 | 22 | 11 | 33.4 | .676 |
| Adam Conley* | Bos | mr | 29 | 3 | 0 | .000 | 2 | .667 | 9 | 36 | 16 | .444 | 36 | 36 | 7 | 21.7 | .639 |
| Dylan Covey | Mtl | sp | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 16 | 0 | 0 | 88.4 | .604 |
| Zach Davies | KCR | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 17 | 0 | 0 | 94.1 | .654 |
| Austin Davis* | KCR | mr | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 3 | 1 | .333 | 7 | 7 | 2 | 24.6 | .622 |
| Jorge de la Rosa* | Bal | mr | 38 | 4 | 1 | .250 | 0 | .000 | 7 | 28 | 8 | .286 | 38 | 38 | 10 | 22.8 | .577 |
| Enyel De Los Santos | Det | mr | 23 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 5 | 0 | 0 | 91.6 | .594 |
| Chris Devenski | NYY | mr | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 3 | 2 | .667 | 4 | 4 | 1 | 27.0 | .722 |
| Edwin Diaz | Oak | cl | 25 | 51 | 44 | .863 | 7 | .137 | 1 | 38 | 10 | .263 | 66 | 66 | 59 | 20.1 | .628 |
| Zach Eflin | Was | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 28 | 0 | 0 | 97.3 | .663 |
| Roenis Elias* | ChW | mr | 30 | 0 | 0 | .000 | 0 | .000 | 0 | 3 | 0 | .000 | 14 | 4 | 2 | 69.6 | .608 |
| Nathan Eovaldi | Det | sp | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 25 | 0 | 0 | 90.6 | .675 |
| Robbie Erlin* | Tor | mr | 28 | 2 | 2 | 1.000 | 0 | .000 | 0 | 2 | 1 | .500 | 20 | 5 | 3 | 76.1 | .691 |
| Marco Estrada | Mtl | sp | 35 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 28 | 0 | 0 | 83.9 | .624 |
| Jeurys Familia | Tor | cl | 29 | 16 | 9 | .563 | 4 | .250 | 10 | 56 | 17 | .304 | 65 | 65 | 33 | 19.1 | .608 |
| Erick Fedde | Min | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 7 | 0 | 0 | 87.4 | .629 |
| Heath Fillmyer | ChW | sp | 25 | 0 | 0 | .000 | 0 | .000 | 3 | 6 | 0 | .000 | 7 | 7 | 3 | 15.0 | .638 |
| Brandon Finnegan* | NYY | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 3 | 0 | 0 | 35.0 | .571 |
| Jack Flaherty | NYY | sp | 23 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 30 | 0 | 0 | 105.0 | .626 |
| Brian Flynn* | Tex | mr | 29 | 2 | 0 | .000 | 1 | .500 | 3 | 41 | 17 | .415 | 47 | 47 | 14 | 30.3 | .587 |
| Mike Foltynewicz | Bal | sp | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 31 | 0 | 0 | 104.6 | .640 |
| Sam Freeman* | Oak | mr | 32 | 2 | 1 | .500 | 1 | .500 | 4 | 26 | 3 | .115 | 33 | 33 | 15 | 24.2 | .603 |
| Max Fried* | KCR | mr | 25 | 13 | 12 | .923 | 1 | .077 | 5 | 19 | 4 | .211 | 22 | 22 | 14 | 18.3 | .588 |
| Carson Fulmer | NYY | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 6 | 0 | 0 | 78.7 | .578 |
| Michael Fulmer | Det | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 28 | 0 | 0 | 97.5 | .628 |
| Yovani Gallardo | Bos | sp | 33 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 16 | 0 | 0 | 89.8 | .595 |
| John Gant | KCR | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 23 | 0 | 0 | 98.8 | .607 |
| Jaime Garcia* | Tex | mr | 32 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 20 | 0 | 0 | 81.7 | .592 |
| Jarlin Garcia* | Was | mr | 26 | 1 | 1 | 1.000 | 0 | .000 | 0 | 1 | 1 | 1.000 | 8 | 2 | 1 | 84.0 | .626 |
| Yimi Garcia | Det | mr | 28 | 1 | 0 | .000 | 1 | 1.000 | 0 | 0 | 0 | .000 | 4 | 4 | 1 | 17.5 | .714 |
| Sam Gaviglio | KCR | sp | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 27 | 0 | 0 | 99.7 | .641 |
| Domingo German | Cle | sp | 26 | 0 | 0 | .000 | 0 | .000 | 1 | 3 | 2 | .667 | 25 | 6 | 1 | 71.0 | .617 |
| Sean Gilmartin* | Was | mr | 29 | 4 | 0 | .000 | 1 | .250 | 6 | 22 | 2 | .091 | 34 | 34 | 6 | 12.8 | .595 |
| Lucas Giolito | ChW | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 31 | 0 | 0 | 97.7 | .580 |
| Zack Godley | NYY | sp | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 32 | 0 | 0 | 103.3 | .596 |
| Luiz Gohara* |   | mr | 22 | 1 | 0 | .000 | 1 | 1.000 | 2 | 15 | 2 | .133 | 17 | 17 | 9 | 32.9 | .600 |
| Marco Gonzales* | Sea | sp | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 30 | 0 | 0 | 95.2 | .652 |
| Gio Gonzalez* | LAA | sp | 33 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 32 | 0 | 0 | 97.0 | .604 |
| Sonny Gray | KCR | sp | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 26 | 0 | 0 | 91.5 | .614 |
| Chad Green | NYY | mr | 28 | 4 | 3 | .750 | 0 | .000 | 1 | 32 | 12 | .375 | 45 | 45 | 19 | 29.0 | .678 |
| Shane Greene | LAA | cl | 30 | 4 | 2 | .500 | 2 | .500 | 6 | 22 | 8 | .364 | 50 | 50 | 21 | 21.2 | .617 |
| Robert Gsellman | Cle | mr | 25 | 1 | 0 | .000 | 1 | 1.000 | 5 | 35 | 17 | .486 | 53 | 53 | 13 | 21.6 | .649 |
| Junior Guerra | Oak | sp | 34 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 30 | 0 | 0 | 87.6 | .608 |
| Josh Hader* | NYY | mr | 25 | 7 | 4 | .571 | 3 | .429 | 8 | 39 | 5 | .128 | 56 | 56 | 25 | 30.1 | .626 |
| Brad Hand* | Oak | cl | 29 | 7 | 4 | .571 | 3 | .429 | 23 | 40 | 9 | .225 | 59 | 59 | 17 | 23.3 | .636 |
| J.A. Happ* | Sea | sp | 36 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 31 | 0 | 0 | 94.4 | .646 |
| Will Harris | Det | mr | 34 | 1 | 0 | .000 | 1 | 1.000 | 16 | 23 | 8 | .348 | 40 | 40 | 7 | 17.5 | .647 |
| Jeremy Hellickson | Min | sp | 32 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 23 | 0 | 0 | 89.3 | .657 |
| Heath Hembree | Det | mr | 30 | 3 | 0 | .000 | 3 | 1.000 | 5 | 27 | 8 | .296 | 50 | 50 | 15 | 24.3 | .602 |
| Kyle Hendricks |   | sp | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 33 | 0 | 0 | 99.8 | .671 |
| Elieser Hernandez | KCR | mr | 24 | 2 | 0 | .000 | 2 | 1.000 | 4 | 14 | 2 | .143 | 26 | 26 | 10 | 27.2 | .627 |
| Kelvin Herrera | Sea | cl | 29 | 1 | 0 | .000 | 1 | 1.000 | 8 | 17 | 3 | .176 | 37 | 37 | 11 | 15.3 | .688 |
| Trevor Hildenberger | Tor | mr | 28 | 5 | 1 | .200 | 4 | .800 | 5 | 40 | 11 | .275 | 50 | 50 | 10 | 22.4 | .639 |
| Rich Hill* | ChW | sp | 39 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 28 | 0 | 0 | 102.8 | .637 |
| Tim Hill* | Mtl | mr | 29 | 6 | 1 | .167 | 3 | .500 | 9 | 14 | 2 | .143 | 41 | 41 | 6 | 15.8 | .565 |
| Yoshihisa Hirano | Bal | mr | 35 | 4 | 2 | .500 | 2 | .500 | 14 | 26 | 10 | .385 | 51 | 51 | 14 | 18.8 | .641 |
| Derek Holland* | ChW | sp | 32 | 1 | 1 | 1.000 | 0 | .000 | 3 | 5 | 1 | .200 | 39 | 9 | 3 | 84.3 | .613 |
| Clay Holmes | LAA | mr | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 6 | 3 | .500 | 13 | 13 | 8 | 31.5 | .538 |
| Dakota Hudson | KCR | mr | 24 | 2 | 2 | 1.000 | 0 | .000 | 0 | 4 | 0 | .000 | 6 | 6 | 4 | 27.7 | .590 |
| Daniel Hudson | Oak | mr | 32 | 2 | 1 | .500 | 1 | .500 | 5 | 12 | 3 | .250 | 25 | 25 | 5 | 33.2 | .638 |
| Tommy Hunter | ChW | mr | 32 | 4 | 2 | .500 | 2 | .500 | 11 | 36 | 13 | .361 | 58 | 58 | 24 | 20.2 | .664 |
| Edwin Jackson | Sea | sp | 35 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 20 | 0 | 0 | 95.3 | .612 |
| Luke Jackson | Bos | mr | 27 | 4 | 1 | .250 | 3 | .750 | 2 | 38 | 11 | .289 | 46 | 46 | 11 | 25.6 | .588 |
| Josh James | Mtl | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 7 | 0 | 0 | 86.4 | .617 |
| Dan Jennings* | NYY | mr | 32 | 0 | 0 | .000 | 0 | .000 | 2 | 3 | 0 | .000 | 11 | 11 | 4 | 17.1 | .638 |
| Joe Jimenez | Cle | mr | 24 | 9 | 2 | .222 | 7 | .778 | 16 | 56 | 16 | .286 | 63 | 62 | 16 | 18.0 | .640 |
| Jim Johnson | Min | mr | 36 | 8 | 5 | .625 | 2 | .250 | 5 | 38 | 12 | .316 | 46 | 46 | 29 | 20.3 | .628 |
| Pierce Johnson | Sea | mr | 28 | 0 | 0 | .000 | 0 | .000 | 4 | 13 | 1 | .077 | 18 | 18 | 5 | 30.8 | .609 |
| Nate Jones | Oak | mr | 33 | 2 | 2 | 1.000 | 0 | .000 | 5 | 13 | 6 | .462 | 23 | 23 | 10 | 23.4 | .604 |
| Jake Junis | KCR | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 30 | 0 | 0 | 98.5 | .650 |
| Tommy Kahnle | Tex | mr | 29 | 2 | 0 | .000 | 0 | .000 | 4 | 14 | 6 | .429 | 15 | 15 | 6 | 25.1 | .574 |
| Brad Keller | Cle | sp | 23 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 24 | 0 | 0 | 94.8 | .618 |
| Shawn Kelley | NYY | mr | 35 | 4 | 3 | .750 | 1 | .250 | 5 | 31 | 7 | .226 | 44 | 44 | 20 | 17.8 | .682 |
| Casey Kelly | Was | mr | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 6 | 0 | 0 | 90.2 | .710 |
| Ian Kennedy | Tor | sp | 34 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 26 | 0 | 0 | 87.2 | .633 |
| Dallas Keuchel* | LAA | sp | 31 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 34 | 0 | 0 | 90.1 | .647 |
| Brandon Kintzler | Sea | mr | 34 | 3 | 1 | .333 | 0 | .000 | 11 | 39 | 9 | .231 | 50 | 50 | 17 | 18.2 | .660 |
| Matt Koch | Mtl | sp | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 1 | 0 | .000 | 2 | 2 | 2 | 19.0 | .789 |
| Wade LeBlanc* | Oak | sp | 34 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 31 | 0 | 0 | 96.4 | .635 |
| Jose Leclerc | Det | mr | 25 | 32 | 30 | .938 | 2 | .063 | 2 | 34 | 3 | .088 | 54 | 54 | 48 | 19.8 | .591 |
| Dominic Leone | Det | mr | 27 | 2 | 2 | 1.000 | 0 | .000 | 2 | 8 | 3 | .375 | 23 | 23 | 9 | 22.5 | .683 |
| Jon Lester* | ChW | sp | 35 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 32 | 0 | 0 | 104.2 | .626 |
| Artie Lewicki | Bos | mr | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 9 | 3 | .333 | 11 | 7 | 6 | 43.0 | .617 |
| Adam Liberatore* | ChW | mr | 32 | 3 | 2 | .667 | 0 | .000 | 1 | 9 | 3 | .333 | 12 | 12 | 5 | 16.8 | .716 |
| Ben Lively | Mtl | sp | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 11 | 4 | .364 | 12 | 11 | 5 | 33.1 | .622 |
| Jorge Lopez | Cle | mr | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 6 | 3 | .500 | 12 | 6 | 1 | 65.2 | .591 |
| Pablo Lopez | Mtl | sp | 23 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 14 | 0 | 0 | 102.2 | .657 |
| Yoan Lopez | Cle | mr | 26 | 0 | 0 | .000 | 0 | .000 | 1 | 5 | 1 | .200 | 9 | 9 | 2 | 11.6 | .567 |
| Aaron Loup* | Tor | mr | 31 | 0 | 0 | .000 | 0 | .000 | 3 | 15 | 6 | .400 | 16 | 16 | 2 | 17.3 | .594 |
| Seth Lugo | Bal | mr | 29 | 1 | 1 | 1.000 | 0 | .000 | 1 | 12 | 2 | .167 | 23 | 13 | 7 | 59.7 | .672 |
| Jordan Lyles | Was | mr | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 12 | 0 | 0 | 91.8 | .651 |
| Lance Lynn | Bos | sp | 32 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 28 | 0 | 0 | 102.4 | .613 |
| Sean Manaea* | Tex | sp | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 30 | 0 | 0 | 91.3 | .662 |
| Carlos Martinez | Min | sp | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 17 | 0 | 0 | 96.4 | .603 |
| Phil Maton | KCR | mr | 26 | 4 | 1 | .250 | 2 | .500 | 6 | 22 | 7 | .318 | 29 | 29 | 11 | 18.3 | .638 |
| Trevor May | NYY | mr | 29 | 2 | 2 | 1.000 | 0 | .000 | 3 | 9 | 2 | .222 | 17 | 17 | 9 | 20.1 | .674 |
| Mike Mayers | Bos | mr | 27 | 2 | 1 | .500 | 0 | .000 | 3 | 32 | 13 | .406 | 38 | 38 | 9 | 25.8 | .606 |
| Tim Mayza* | Tex | mr | 27 | 6 | 4 | .667 | 2 | .333 | 1 | 22 | 6 | .273 | 27 | 27 | 17 | 22.1 | .636 |
| Zach McAllister | Tor | mr | 31 | 2 | 0 | .000 | 1 | .500 | 0 | 12 | 6 | .500 | 14 | 14 | 3 | 21.1 | .635 |
| Brandon McCarthy | Mtl | sp | 35 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 14 | 0 | 0 | 71.6 | .625 |
| Kevin McCarthy | LAA | mr | 27 | 0 | 0 | .000 | 0 | .000 | 4 | 32 | 10 | .313 | 51 | 51 | 16 | 21.2 | .661 |
| T.J. McFarland* |   | mr | 30 | 14 | 10 | .714 | 1 | .071 | 6 | 33 | 5 | .152 | 58 | 58 | 28 | 19.8 | .644 |
| Jake McGee* | Min | mr | 32 | 4 | 3 | .750 | 1 | .250 | 2 | 7 | 1 | .143 | 9 | 9 | 4 | 19.9 | .620 |
| Mark Melancon | Min | mr | 34 | 16 | 16 | 1.000 | 0 | .000 | 0 | 9 | 2 | .222 | 24 | 24 | 20 | 20.5 | .655 |
| Yohander Mendez* | Oak | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 10 | 0 | 0 | 86.9 | .572 |
| Daniel Mengden | Was | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 18 | 0 | 0 | 94.7 | .636 |
| Keynan Middleton | Cle | mr | 25 | 1 | 1 | 1.000 | 0 | .000 | 0 | 4 | 2 | .500 | 14 | 14 | 5 | 25.0 | .634 |
| Wade Miley* | Oak | sp | 32 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 20 | 0 | 0 | 90.3 | .628 |
| Andrew Miller* | Tor | mr | 34 | 10 | 5 | .500 | 2 | .200 | 6 | 43 | 17 | .395 | 38 | 38 | 12 | 17.8 | .572 |
| Justin Miller | Bal | mr | 32 | 0 | 0 | .000 | 0 | .000 | 0 | 10 | 2 | .200 | 30 | 30 | 6 | 28.1 | .629 |
| Shelby Miller | Tex | sp | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 4 | 0 | 0 | 55.5 | .662 |
| Alec Mills | ChW | mr | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 6 | 0 | 0 | 109.2 | .638 |
| Juan Minaya | Oak | mr | 28 | 2 | 2 | 1.000 | 0 | .000 | 5 | 12 | 4 | .333 | 31 | 31 | 9 | 28.5 | .597 |
| Mike Minor* | Was | sp | 31 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 30 | 0 | 0 | 94.8 | .653 |
| A.J. Minter* | LAA | mr | 25 | 26 | 18 | .692 | 5 | .192 | 6 | 19 | 4 | .211 | 54 | 54 | 37 | 19.1 | .617 |
| Ariel Miranda* | Was | sp | 30 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 4 | 0 | 0 | 64.5 | .597 |
| Bryan Mitchell | Mtl | sp | 28 | 1 | 1 | 1.000 | 0 | .000 | 0 | 27 | 11 | .407 | 31 | 31 | 11 | 34.7 | .577 |
| Jordan Montgomery* | Bal | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 10 | 0 | 0 | 85.1 | .604 |
| Matt Moore* | Tex | mr | 30 | 0 | 0 | .000 | 0 | .000 | 2 | 9 | 3 | .333 | 29 | 13 | 5 | 59.9 | .620 |
| Adam Morgan* | Det | mr | 29 | 3 | 2 | .667 | 1 | .333 | 11 | 37 | 11 | .297 | 51 | 51 | 9 | 19.1 | .640 |
| Reyes Moronta |   | mr | 26 | 14 | 12 | .857 | 2 | .143 | 11 | 48 | 5 | .104 | 64 | 64 | 33 | 20.6 | .605 |
| Gabriel Moya* |   | mr | 24 | 0 | 0 | .000 | 0 | .000 | 3 | 24 | 7 | .292 | 35 | 35 | 12 | 16.8 | .611 |
| Peter Moylan | Mtl | mr | 40 | 0 | 0 | .000 | 0 | .000 | 0 | 3 | 2 | .667 | 5 | 5 | 3 | 20.6 | .670 |
| Hector Neris | Det | mr | 30 | 5 | 2 | .400 | 3 | .600 | 8 | 31 | 10 | .323 | 48 | 48 | 16 | 20.2 | .617 |
| Pat Neshek | Min | mr | 38 | 6 | 4 | .667 | 2 | .333 | 2 | 17 | 5 | .294 | 18 | 18 | 8 | 18.3 | .673 |
| Juan Nicasio | Tex | mr | 32 | 0 | 0 | .000 | 0 | .000 | 0 | 19 | 9 | .474 | 21 | 21 | 9 | 26.2 | .690 |
| Bud Norris | Min | cl | 34 | 10 | 4 | .400 | 6 | .600 | 13 | 25 | 8 | .320 | 53 | 53 | 21 | 20.3 | .629 |
| James Norwood | ChW | mr | 25 | 3 | 2 | .667 | 1 | .333 | 1 | 5 | 0 | .000 | 8 | 8 | 4 | 24.6 | .604 |
| Vidal Nuno* | Min | mr | 31 | 9 | 6 | .667 | 2 | .222 | 2 | 15 | 2 | .133 | 26 | 26 | 16 | 20.6 | .679 |
| Darren O'Day | Sea | mr | 36 | 0 | 0 | .000 | 0 | .000 | 4 | 0 | 0 | .000 | 7 | 7 | 1 | 14.0 | .735 |
| Trevor Oaks | Oak | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 4 | 0 | 0 | 79.8 | .596 |
| Jake Odorizzi | Sea | sp | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 32 | 0 | 0 | 94.9 | .605 |
| Seung Hwan Oh | Tor | mr | 36 | 4 | 0 | .000 | 4 | 1.000 | 14 | 44 | 16 | .364 | 58 | 58 | 15 | 21.4 | .630 |
| Shohei Ohtani | ChW | dh | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 14 | 0 | 0 | 100.2 | .577 |
| Steven Okert* | Det | mr | 27 | 1 | 0 | .000 | 1 | 1.000 | 0 | 3 | 2 | .667 | 4 | 4 | 0 | 17.0 | .676 |
| Roberto Osuna | Tor | cl | 24 | 26 | 21 | .808 | 5 | .192 | 1 | 35 | 11 | .314 | 46 | 46 | 44 | 13.6 | .637 |
| Dan Otero | KCR | mr | 34 | 3 | 1 | .333 | 1 | .333 | 15 | 15 | 9 | .600 | 40 | 40 | 12 | 13.6 | .746 |
| Emilio Pagan | Was | mr | 28 | 3 | 1 | .333 | 1 | .333 | 5 | 20 | 7 | .350 | 43 | 43 | 15 | 26.2 | .619 |
| Thomas Pannone* | Oak | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 9 | 0 | 0 | 94.3 | .623 |
| Blake Parker | Min | mr | 34 | 2 | 1 | .500 | 1 | .500 | 4 | 35 | 13 | .371 | 43 | 43 | 13 | 25.9 | .654 |
| James Paxton* | Sea | sp | 30 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 30 | 0 | 0 | 97.0 | .653 |
| Brad Peacock | Bal | mr | 31 | 33 | 25 | .758 | 8 | .242 | 4 | 30 | 9 | .300 | 61 | 61 | 42 | 17.8 | .620 |
| Freddy Peralta | Min | sp | 23 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 18 | 0 | 0 | 97.7 | .598 |
| Luis Perdomo | Mtl | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 14 | 0 | 0 | 89.7 | .621 |
| Cionel Perez* | Det | mr | 23 | 1 | 1 | 1.000 | 0 | .000 | 4 | 14 | 3 | .214 | 15 | 15 | 5 | 15.2 | .557 |
| Yusmeiro Petit | LAA | mr | 34 | 15 | 5 | .333 | 8 | .533 | 11 | 33 | 17 | .515 | 61 | 61 | 19 | 21.6 | .667 |
| Nick Pivetta | Was | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 32 | 0 | 0 | 98.1 | .643 |
| Drew Pomeranz* | Sea | mr | 30 | 0 | 0 | .000 | 0 | .000 | 0 | 6 | 3 | .500 | 12 | 11 | 6 | 32.1 | .551 |
| Daniel Poncedeleon | NYY | mr | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 8 | 0 | 0 | 94.3 | .638 |
| Ryan Pressly | Was | mr | 30 | 35 | 29 | .829 | 6 | .171 | 1 | 47 | 17 | .362 | 57 | 57 | 41 | 21.7 | .657 |
| Erasmo Ramirez | Tor | sp | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 14 | 0 | 0 | 90.1 | .642 |
| Noe Ramirez | Tex | mr | 29 | 4 | 1 | .250 | 2 | .500 | 5 | 34 | 8 | .235 | 61 | 61 | 15 | 27.4 | .615 |
| Yefry Ramirez | KCR | sp | 25 | 2 | 2 | 1.000 | 0 | .000 | 1 | 13 | 6 | .462 | 23 | 23 | 13 | 37.2 | .616 |
| A.J. Ramos | Mtl | mr | 32 | 1 | 0 | .000 | 0 | .000 | 0 | 6 | 2 | .333 | 7 | 7 | 1 | 20.1 | .567 |
| Cody Reed* | Tex | mr | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 11 | 0 | 0 | 89.4 | .623 |
| Garrett Richards |   | sp | 31 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 20 | 0 | 0 | 96.2 | .582 |
| Trevor Richards | Mtl | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 29 | 0 | 0 | 90.7 | .631 |
| Tanner Roark | Bal | sp | 32 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 30 | 0 | 0 | 93.7 | .633 |
| David Robertson | NYY | mr | 34 | 13 | 11 | .846 | 2 | .154 | 1 | 20 | 4 | .200 | 38 | 38 | 25 | 23.8 | .629 |
| Hansel Robles | Min | mr | 28 | 3 | 2 | .667 | 0 | .000 | 12 | 27 | 8 | .296 | 39 | 39 | 19 | 20.2 | .626 |
| Fernando Rodney | Bos | cl | 42 | 23 | 17 | .739 | 4 | .174 | 4 | 46 | 20 | .435 | 65 | 65 | 39 | 20.2 | .611 |
| Dereck Rodriguez | KCR | sp | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 23 | 0 | 0 | 95.9 | .634 |
| Eduardo Rodriguez* | Bos | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 26 | 0 | 0 | 97.6 | .622 |
| Jefry Rodriguez | KCR | sp | 25 | 2 | 2 | 1.000 | 0 | .000 | 5 | 15 | 3 | .200 | 24 | 24 | 5 | 29.4 | .572 |
| Richard Rodriguez | Was | mr | 29 | 13 | 6 | .462 | 3 | .231 | 16 | 37 | 13 | .351 | 62 | 62 | 24 | 20.0 | .649 |
| Chaz Roe | NYY | mr | 32 | 8 | 4 | .500 | 3 | .375 | 3 | 23 | 8 | .348 | 50 | 50 | 24 | 18.7 | .600 |
| Taylor Rogers* | Sea | mr | 28 | 6 | 3 | .500 | 1 | .167 | 18 | 34 | 6 | .176 | 65 | 65 | 18 | 14.2 | .678 |
| Sergio Romo | Cle | mr | 36 | 5 | 0 | .000 | 5 | 1.000 | 7 | 35 | 19 | .543 | 66 | 66 | 17 | 18.2 | .614 |
| Randy Rosario* | Cle | mr | 25 | 9 | 1 | .111 | 3 | .333 | 11 | 42 | 11 | .262 | 53 | 53 | 9 | 13.3 | .596 |
| Chris Rusin* |   | mr | 32 | 2 | 0 | .000 | 2 | 1.000 | 4 | 11 | 5 | .455 | 16 | 16 | 4 | 19.1 | .616 |
| Connor Sadzeck | ChW | mr | 27 | 3 | 2 | .667 | 1 | .333 | 1 | 11 | 6 | .545 | 14 | 14 | 7 | 16.3 | .487 |
| Jeff Samardzija | Tor | sp | 34 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 14 | 0 | 0 | 77.9 | .565 |
| Aaron Sanchez | Min | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 9 | 0 | 0 | 85.3 | .618 |
| Anibal Sanchez | Min | sp | 35 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 28 | 0 | 0 | 92.1 | .639 |
| Edgar Santana | Oak | mr | 27 | 4 | 2 | .500 | 2 | .500 | 9 | 32 | 14 | .438 | 45 | 45 | 17 | 23.7 | .648 |
| Jaime Schultz | Min | mr | 28 | 2 | 2 | 1.000 | 0 | .000 | 0 | 6 | 1 | .167 | 13 | 13 | 8 | 34.3 | .583 |
| Tanner Scott* | KCR | mr | 24 | 4 | 2 | .500 | 2 | .500 | 12 | 21 | 7 | .333 | 37 | 37 | 5 | 20.8 | .585 |
| Luis Severino | NYY | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 32 | 0 | 0 | 108.0 | .649 |
| Justus Sheffield* | Det | mr | 23 | 0 | 0 | .000 | 0 | .000 | 2 | 1 | 0 | .000 | 2 | 2 | 0 | 5.5 | .364 |
| Jimmie Sherfy | Det | mr | 27 | 0 | 0 | .000 | 0 | .000 | 5 | 5 | 1 | .200 | 16 | 16 | 3 | 22.3 | .553 |
| James Shields | Bos | sp | 37 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 26 | 0 | 0 | 102.9 | .622 |
| Matt Shoemaker | LAA | sp | 32 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 10 | 0 | 0 | 88.0 | .658 |
| Chasen Shreve* | KCR | mr | 28 | 3 | 3 | 1.000 | 0 | .000 | 10 | 16 | 7 | .438 | 31 | 31 | 11 | 21.5 | .612 |
| Lucas Sims | Det | mr | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 6 | 4 | .667 | 12 | 12 | 8 | 26.9 | .604 |
| Tony Sipp* | ChW | mr | 35 | 6 | 4 | .667 | 1 | .167 | 15 | 32 | 10 | .313 | 50 | 50 | 14 | 16.8 | .586 |
| Tyler Skaggs* | Tex | sp | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 28 | 0 | 0 | 93.6 | .645 |
| Carson Smith | NYY | mr | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 1 | 1 | 1.000 | 7 | 7 | 3 | 21.0 | .592 |
| Drew Smith | Sea | mr | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 2 | 2 | 2 | 23.0 | .609 |
| Chad Sobotka | Tor | mr | 25 | 2 | 1 | .500 | 1 | .500 | 2 | 8 | 3 | .375 | 11 | 11 | 7 | 21.5 | .597 |
| Joakim Soria | Oak | mr | 35 | 3 | 2 | .667 | 1 | .333 | 21 | 41 | 10 | .244 | 54 | 54 | 10 | 20.6 | .642 |
| Ryne Stanek | Bos | mr | 27 | 4 | 3 | .750 | 1 | .250 | 7 | 39 | 10 | .256 | 54 | 54 | 24 | 22.1 | .668 |
| Drew Steckenrider | NYY | mr | 28 | 9 | 6 | .667 | 2 | .222 | 6 | 32 | 11 | .344 | 50 | 50 | 23 | 23.0 | .633 |
| Brock Stewart | Det | mr | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 4 | 4 | 1.000 | 12 | 10 | 6 | 24.3 | .608 |
| Kohl Stewart | Tor | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 2 | 0 | .000 | 6 | 2 | 2 | 56.5 | .578 |
| Robert Stock | Mtl | mr | 29 | 16 | 13 | .813 | 3 | .188 | 2 | 29 | 7 | .241 | 32 | 32 | 27 | 23.2 | .629 |
| Dan Straily | Oak | sp | 30 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 26 | 0 | 0 | 97.5 | .620 |
| Daniel Stumpf* | Cle | mr | 28 | 0 | 0 | .000 | 0 | .000 | 2 | 14 | 4 | .286 | 21 | 21 | 0 | 12.2 | .566 |
| Andrew Suarez* | Bos | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 30 | 0 | 0 | 97.7 | .636 |
| Noah Syndergaard | Tor | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 29 | 0 | 0 | 107.4 | .663 |
| Jameson Taillon | Min | sp | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 32 | 0 | 0 | 99.7 | .664 |
| Julio Teheran | Bal | sp | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 30 | 0 | 0 | 96.4 | .606 |
| Jake Thompson | Tex | mr | 25 | 1 | 0 | .000 | 0 | .000 | 2 | 7 | 0 | .000 | 11 | 11 | 3 | 31.6 | .557 |
| Blake Treinen | KCR | cl | 31 | 37 | 33 | .892 | 4 | .108 | 0 | 33 | 4 | .121 | 44 | 44 | 40 | 15.0 | .659 |
| Lou Trivino | Cle | mr | 27 | 7 | 3 | .429 | 4 | .571 | 11 | 44 | 13 | .295 | 56 | 56 | 22 | 20.5 | .626 |
| Nick Tropeano | Was | sp | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 18 | 0 | 0 | 88.8 | .604 |
| Sam Tuivailala | KCR | mr | 26 | 5 | 2 | .400 | 1 | .200 | 3 | 9 | 3 | .333 | 21 | 21 | 9 | 16.8 | .635 |
| Jose Urena | Det | sp | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 31 | 0 | 0 | 94.6 | .645 |
| Felipe Vazquez* | Cle | cl | 27 | 43 | 39 | .907 | 4 | .093 | 0 | 25 | 4 | .160 | 56 | 56 | 53 | 17.4 | .655 |
| Pat Venditte* | Oak | mr | 34 | 0 | 0 | .000 | 0 | .000 | 2 | 4 | 0 | .000 | 10 | 10 | 4 | 19.8 | .641 |
| Justin Verlander | Cle | sp | 36 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 35 | 0 | 0 | 102.2 | .677 |
| Arodys Vizcaino |   | cl | 28 | 5 | 2 | .400 | 3 | .600 | 6 | 20 | 6 | .300 | 35 | 35 | 8 | 22.7 | .587 |
| Michael Wacha | Tex | sp | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 19 | 0 | 0 | 89.9 | .585 |
| Adam Wainwright | Cle | sp | 37 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 9 | 0 | 0 | 78.7 | .607 |
| Taijuan Walker | Sea | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 7 | 0 | 0 | 88.4 | .591 |
| Adam Warren | Bal | mr | 31 | 2 | 1 | .500 | 1 | .500 | 8 | 27 | 12 | .444 | 41 | 41 | 8 | 24.0 | .611 |
| J.B. Wendelken | ChW | mr | 26 | 3 | 1 | .333 | 2 | .667 | 1 | 17 | 3 | .176 | 14 | 14 | 7 | 20.7 | .641 |
| Taylor Williams | LAA | mr | 27 | 2 | 1 | .500 | 1 | .500 | 6 | 20 | 8 | .400 | 40 | 40 | 16 | 23.2 | .610 |
| Trevor Williams | LAA | sp | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 31 | 0 | 0 | 98.4 | .627 |
| Alex Wilson | ChW | mr | 32 | 15 | 10 | .667 | 5 | .333 | 9 | 53 | 16 | .302 | 56 | 56 | 27 | 18.3 | .650 |
| Justin Wilson* | Bal | mr | 31 | 0 | 0 | .000 | 0 | .000 | 8 | 18 | 9 | .500 | 48 | 48 | 17 | 22.3 | .570 |
| Trey Wingenter | Tor | mr | 25 | 2 | 0 | .000 | 2 | 1.000 | 1 | 19 | 8 | .421 | 19 | 19 | 7 | 20.6 | .551 |
| Daniel Winkler | ChW | mr | 29 | 8 | 5 | .625 | 3 | .375 | 15 | 50 | 11 | .220 | 66 | 66 | 19 | 17.8 | .625 |
| Nick Wittgren | Sea | mr | 28 | 3 | 3 | 1.000 | 0 | .000 | 5 | 15 | 2 | .133 | 24 | 24 | 10 | 20.1 | .638 |
| Alex Wood* | Tor | sp | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 31 | 0 | 0 | 88.9 | .645 |
| Blake Wood |   | mr | 33 | 1 | 1 | 1.000 | 0 | .000 | 2 | 8 | 3 | .375 | 11 | 11 | 2 | 19.0 | .584 |
| Hunter Wood | Tor | mr | 25 | 0 | 0 | .000 | 0 | .000 | 1 | 31 | 11 | .355 | 33 | 33 | 5 | 33.5 | .630 |
| Brandon Woodruff | Cle | mr | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 10 | 0 | 0 | 88.4 | .669 |
| Steven Wright | Tex | mr | 34 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 10 | 0 | 0 | 106.3 | .581 |
| Jimmy Yacabonis | KCR | sp | 27 | 1 | 1 | 1.000 | 0 | .000 | 2 | 9 | 2 | .222 | 17 | 17 | 8 | 28.6 | .567 |
| Ryan Yarbrough* | Mtl | mr | 27 | 3 | 2 | .667 | 1 | .333 | 1 | 32 | 11 | .344 | 48 | 40 | 17 | 49.5 | .633 |
| Daniel Zamora* | Tex | mr | 26 | 2 | 2 | 1.000 | 0 | .000 | 1 | 2 | 0 | .000 | 6 | 6 | 3 | 16.8 | .634 |
| Jordan Zimmermann | Bal | sp | 33 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 27 | 0 | 0 | 91.6 | .659 |