Team fielding -- 2019 Seattle Mariners
Regular season -- as of 9/24/2019
| Primary |
| Pos |  | Name | G | GS | INN | PO | A | E | DP | TC | PCT | PB | SB | CS | SB% | PK |
| p | | J.A. Happ | 31 | 31 | 186.3 | 15 | 13 | 2 | 0 | 30 | .933 | | 10 | 1 | .909 | 0 |
| | | Marco Gonzales | 30 | 30 | 191.7 | 7 | 18 | 4 | 1 | 29 | .862 | | 13 | 1 | .929 | 0 |
| | | James Paxton | 30 | 30 | 184.0 | 15 | 10 | 0 | 1 | 25 | 1.000 | | 3 | 2 | .600 | 0 |
| | | Jake Odorizzi | 32 | 32 | 174.7 | 11 | 9 | 2 | 0 | 22 | .909 | | 14 | 3 | .824 | 1 |
| | | Edwin Jackson | 20 | 20 | 112.0 | 7 | 7 | 5 | 0 | 19 | .737 | | 3 | 1 | .750 | 0 |
| | | Brandon Kintzler | 50 | 0 | 60.7 | 3 | 11 | 1 | 0 | 15 | .933 | | 0 | 2 | .000 | 1 |
| | | Pedro Baez | 54 | 0 | 56.7 | 3 | 7 | 1 | 0 | 11 | .909 | | 4 | 0 | 1.000 | 0 |
| | | Ryan Borucki | 11 | 11 | 64.0 | 4 | 4 | 2 | 1 | 10 | .800 | | 4 | 0 | 1.000 | 0 |
| | | Taylor Rogers | 65 | 0 | 65.3 | 4 | 6 | 0 | 0 | 10 | 1.000 | | 2 | 0 | 1.000 | 0 |
| | | Dellin Betances | 64 | 0 | 71.3 | 4 | 2 | 2 | 0 | 8 | .750 | | 1 | 2 | .333 | 0 |
| | f | Taijuan Walker | 7 | 7 | 35.0 | 5 | 1 | 1 | 0 | 7 | .857 | | 0 | 0 | .000 | 0 |
| | | Kelvin Herrera | 37 | 0 | 42.7 | 1 | 5 | 0 | 1 | 6 | 1.000 | | 1 | 0 | 1.000 | 1 |
| | | Aaron Bummer | 41 | 0 | 34.0 | 1 | 4 | 0 | 1 | 5 | 1.000 | | 1 | 0 | 1.000 | 0 |
| | | Drew Pomeranz | 12 | 1 | 20.0 | 1 | 4 | 0 | 0 | 5 | 1.000 | | 0 | 0 | .000 | 0 |
| | | Tyler Clippard | 67 | 0 | 74.7 | 2 | 2 | 0 | 0 | 4 | 1.000 | | 5 | 1 | .833 | 1 |
| | | Pierce Johnson | 18 | 0 | 35.0 | 3 | 0 | 1 | 0 | 4 | .750 | | 0 | 0 | .000 | 0 |
| | | Nick Wittgren | 24 | 0 | 34.0 | 1 | 3 | 0 | 2 | 4 | 1.000 | | 0 | 0 | .000 | 0 |
| | | Darren O'Day | 7 | 0 | 7.3 | 0 | 0 | 0 | 0 | 0 | .000 | | 0 | 0 | .000 | 0 |
| | | Drew Smith | 2 | 0 | 2.3 | 0 | 0 | 0 | 0 | 0 | .000 | | 0 | 0 | .000 | 0 |
| | | Total | 602 | 162 | 1451.7 | 87 | 106 | 21 | 7 | 214 | .902 | | 61 | 13 | .824 | 4 |
| | | | | | | | | | | | | | | | | |
| c | | Jonathan Lucroy | 105 | 101 | 859.7 | 891 | 15 | 7 | 2 | 913 | .992 | 7 | 41 | 6 | .872 | 0 |
| | | Erik Kratz | 97 | 61 | 592.0 | 587 | 20 | 1 | 1 | 608 | .998 | 4 | 20 | 7 | .741 | 0 |
| | | Total | 202 | 162 | 1451.7 | 1478 | 35 | 8 | 3 | 1521 | .995 | 11 | 61 | 13 | .824 | 0 |
| | | | | | | | | | | | | | | | | |
| 1b | | Justin Smoak | 147 | 147 | 1322.3 | 1046 | 82 | 1 | 116 | 1129 | .999 | | | | | |
| | | Ryon Healy | 14 | 14 | 119.7 | 94 | 6 | 2 | 9 | 102 | .980 | | | | | |
| | | Matt Davidson | 2 | 1 | 9.7 | 7 | 0 | 0 | 0 | 7 | 1.000 | | | | | |
| | | Total | 163 | 162 | 1451.7 | 1147 | 88 | 3 | 125 | 1238 | .998 | | | | | |
| | | | | | | | | | | | | | | | | |
| 2b | | Scooter Gennett | 153 | 153 | 1360.7 | 301 | 393 | 10 | 99 | 704 | .986 | | | | | |
| | | Ronald Torreyes | 13 | 9 | 91.0 | 26 | 26 | 0 | 9 | 52 | 1.000 | | | | | |
| | | Total | 166 | 162 | 1451.7 | 327 | 419 | 10 | 108 | 756 | .987 | | | | | |
| | | | | | | | | | | | | | | | | |
| 3b | | Matt Davidson | 117 | 116 | 988.7 | 47 | 146 | 11 | 15 | 204 | .946 | | | | | |
| | | Jake Lamb | 57 | 39 | 364.7 | 20 | 68 | 3 | 5 | 91 | .967 | | | | | |
| | | Ronald Torreyes | 30 | 7 | 98.3 | 5 | 14 | 3 | 2 | 22 | .864 | | | | | |
| | | Total | 204 | 162 | 1451.7 | 72 | 228 | 17 | 22 | 317 | .946 | | | | | |
| | | | | | | | | | | | | | | | | |
| ss | | Francisco Lindor | 158 | 158 | 1392.3 | 154 | 480 | 10 | 94 | 644 | .984 | | | | | |
| | | Ronald Torreyes | 8 | 3 | 50.3 | 4 | 16 | 1 | 0 | 21 | .952 | | | | | |
| | | Kevin Newman | 1 | 1 | 9.0 | 2 | 3 | 0 | 1 | 5 | 1.000 | | | | | |
| | | Total | 167 | 162 | 1451.7 | 160 | 499 | 11 | 95 | 670 | .984 | | | | | |
| | | | | | | | | | | | | | | | | |
| lf | | Alex Gordon | 134 | 133 | 1168.7 | 295 | 7 | 0 | 0 | 302 | 1.000 | | | | | |
| | | Mason Williams | 34 | 28 | 266.0 | 59 | 1 | 0 | 0 | 60 | 1.000 | | | | | |
| | | Dalton Pompey | 2 | 1 | 17.0 | 0 | 0 | 0 | 0 | 0 | .000 | | | | | |
| | | Total | 170 | 162 | 1451.7 | 354 | 8 | 0 | 0 | 362 | 1.000 | | | | | |
| | | | | | | | | | | | | | | | | |
| cf | | Mookie Betts | 139 | 139 | 1240.7 | 346 | 6 | 0 | 2 | 352 | 1.000 | | | | | |
| | | Boog Powell | 13 | 12 | 107.3 | 34 | 0 | 1 | 0 | 35 | .971 | | | | | |
| | | Mason Williams | 11 | 11 | 103.7 | 27 | 0 | 0 | 0 | 27 | 1.000 | | | | | |
| | | Total | 163 | 162 | 1451.7 | 407 | 6 | 1 | 2 | 414 | .998 | | | | | |
| | | | | | | | | | | | | | | | | |
| rf | | Nick Markakis | 162 | 162 | 1447.7 | 322 | 5 | 1 | 0 | 328 | .997 | | | | | |
| | | Alex Gordon | 1 | 0 | 2.0 | 1 | 0 | 0 | 0 | 1 | 1.000 | | | | | |
| | | Mookie Betts | 1 | 0 | 1.0 | 0 | 0 | 0 | 0 | 0 | .000 | | | | | |
| | | Mason Williams | 1 | 0 | 1.0 | 0 | 0 | 0 | 0 | 0 | .000 | | | | | |
| | | Total | 165 | 162 | 1451.7 | 323 | 5 | 1 | 0 | 329 | .997 | | | | | |
| | | | | | | | | | | | | | | | | |
| | | Total | 162 | 162 | 1451.7 | 4355 | 1394 | 72 | 132 | 5821 | .988 | 11 | | | | |