Team fielding -- 2021 Boston Red Sox
Regular season -- as of 9/28/2021
| Primary |
| Pos |  | Name | G | GS | INN | PO | A | E | DP | TC | PCT | PB | SB | CS | SB% | PK |
| p | | Chad Bettis | 33 | 12 | 97.7 | 10 | 13 | 0 | 1 | 23 | 1.000 | | 0 | 4 | .000 | 1 |
| | | Ty Blach | 21 | 21 | 123.7 | 6 | 14 | 1 | 3 | 21 | .952 | | 2 | 3 | .400 | 0 |
| | | Eduardo Rodriguez | 30 | 30 | 180.0 | 8 | 12 | 0 | 1 | 20 | 1.000 | | 3 | 5 | .375 | 0 |
| | | Taylor Clarke | 24 | 24 | 123.7 | 13 | 4 | 3 | 1 | 20 | .850 | | 10 | 2 | .833 | 0 |
| | | Nick Margevicius | 24 | 24 | 135.7 | 7 | 11 | 1 | 0 | 19 | .947 | | 3 | 1 | .750 | 0 |
| | f | Devin Smeltzer | 26 | 26 | 150.3 | 7 | 10 | 0 | 2 | 17 | 1.000 | | 5 | 3 | .625 | 0 |
| | | Luke Jackson | 59 | 0 | 78.3 | 6 | 5 | 0 | 1 | 11 | 1.000 | | 4 | 3 | .571 | 0 |
| | | Brusdar Graterol | 35 | 0 | 46.0 | 4 | 5 | 1 | 1 | 10 | .900 | | 0 | 1 | .000 | 0 |
| | | Felix Pena | 25 | 13 | 91.0 | 2 | 3 | 3 | 1 | 8 | .625 | | 0 | 1 | .000 | 0 |
| | | Yency Almonte | 65 | 0 | 74.7 | 4 | 4 | 0 | 0 | 8 | 1.000 | | 4 | 2 | .667 | 1 |
| | | Sal Romano | 25 | 12 | 94.3 | 1 | 6 | 0 | 0 | 7 | 1.000 | | 1 | 2 | .333 | 0 |
| | | Jose Alvarez | 50 | 0 | 55.0 | 4 | 2 | 0 | 0 | 6 | 1.000 | | 1 | 0 | 1.000 | 0 |
| | | Joe Smith | 42 | 0 | 41.0 | 2 | 2 | 1 | 0 | 5 | .800 | | 0 | 1 | .000 | 0 |
| | f | Hansel Robles | 42 | 0 | 66.0 | 1 | 3 | 0 | 1 | 4 | 1.000 | | 0 | 1 | .000 | 0 |
| | | Greg Holland | 47 | 0 | 37.7 | 1 | 1 | 1 | 0 | 3 | .667 | | 1 | 0 | 1.000 | 0 |
| | | Sergio Romo | 42 | 0 | 51.3 | 1 | 1 | 0 | 0 | 2 | 1.000 | | 2 | 0 | 1.000 | 0 |
| | | Adam Morgan | 27 | 0 | 24.3 | 0 | 1 | 0 | 0 | 1 | 1.000 | | 0 | 0 | .000 | 0 |
| | | Total | 617 | 162 | 1470.7 | 77 | 97 | 11 | 12 | 185 | .941 | | 36 | 29 | .554 | 2 |
| | | | | | | | | | | | | | | | | |
| c | | Austin Nola | 99 | 92 | 832.0 | 786 | 29 | 4 | 0 | 819 | .995 | 19 | 19 | 14 | .576 | 0 |
| | | Reese McGuire | 74 | 70 | 638.7 | 591 | 27 | 7 | 2 | 625 | .989 | 8 | 17 | 15 | .531 | 0 |
| | | Total | 173 | 162 | 1470.7 | 1377 | 56 | 11 | 2 | 1444 | .992 | 27 | 36 | 29 | .554 | 0 |
| | | | | | | | | | | | | | | | | |
| 1b | | Rowdy Tellez | 70 | 69 | 623.0 | 641 | 41 | 8 | 61 | 690 | .988 | | | | | |
| | | Josh Bell | 73 | 72 | 651.0 | 622 | 35 | 6 | 59 | 663 | .991 | | | | | |
| | | Ronald Guzman | 21 | 21 | 178.7 | 180 | 4 | 2 | 18 | 186 | .989 | | | | | |
| | | Austin Nola | 6 | 0 | 18.0 | 18 | 0 | 0 | 0 | 18 | 1.000 | | | | | |
| | | Total | 170 | 162 | 1470.7 | 1461 | 80 | 16 | 138 | 1557 | .990 | | | | | |
| | | | | | | | | | | | | | | | | |
| 2b | | Hanser Alberto | 133 | 132 | 1121.7 | 218 | 428 | 5 | 97 | 651 | .992 | | | | | |
| | | Dawel Lugo | 32 | 22 | 229.0 | 48 | 85 | 4 | 17 | 137 | .971 | | | | | |
| | | Anderson Tejeda | 21 | 8 | 115.0 | 22 | 35 | 1 | 9 | 58 | .983 | | | | | |
| | | Alex Verdugo | 1 | 0 | 1.0 | 0 | 1 | 0 | 0 | 1 | 1.000 | | | | | |
| | | Jesus Sanchez | 1 | 0 | 2.0 | 0 | 1 | 0 | 0 | 1 | 1.000 | | | | | |
| | | Austin Nola | 1 | 0 | 1.0 | 0 | 0 | 0 | 0 | 0 | .000 | | | | | |
| | | Ronald Guzman | 1 | 0 | 1.0 | 0 | 0 | 0 | 0 | 0 | .000 | | | | | |
| | | Total | 190 | 162 | 1470.7 | 288 | 550 | 10 | 123 | 848 | .988 | | | | | |
| | | | | | | | | | | | | | | | | |
| 3b | f | Nolan Arenado | 151 | 151 | 1358.7 | 71 | 317 | 4 | 37 | 392 | .990 | | | | | |
| | | Dawel Lugo | 10 | 10 | 96.0 | 9 | 19 | 5 | 1 | 33 | .848 | | | | | |
| | | Anderson Tejeda | 2 | 1 | 10.0 | 0 | 2 | 0 | 0 | 2 | 1.000 | | | | | |
| | | Austin Nola | 1 | 0 | 6.0 | 0 | 1 | 0 | 0 | 1 | 1.000 | | | | | |
| | | Total | 164 | 162 | 1470.7 | 80 | 339 | 9 | 38 | 428 | .979 | | | | | |
| | | | | | | | | | | | | | | | | |
| ss | | Orlando Arcia | 144 | 144 | 1235.0 | 158 | 473 | 21 | 77 | 652 | .968 | | | | | |
| | | Dawel Lugo | 20 | 18 | 159.0 | 21 | 62 | 3 | 12 | 86 | .965 | | | | | |
| | | Hanser Alberto | 16 | 0 | 53.0 | 10 | 16 | 0 | 4 | 26 | 1.000 | | | | | |
| | | Anderson Tejeda | 8 | 0 | 19.0 | 1 | 12 | 0 | 0 | 13 | 1.000 | | | | | |
| | | Austin Nola | 1 | 0 | 0.7 | 1 | 0 | 0 | 0 | 1 | 1.000 | | | | | |
| | | Shin-Soo Choo | 1 | 0 | 4.0 | 0 | 1 | 0 | 0 | 1 | 1.000 | | | | | |
| | | Total | 190 | 162 | 1470.7 | 191 | 564 | 24 | 93 | 779 | .969 | | | | | |
| | | | | | | | | | | | | | | | | |
| lf | | Mike Yastrzemski | 52 | 48 | 434.3 | 107 | 2 | 3 | 1 | 112 | .973 | | | | | |
| | | Manuel Margot | 37 | 37 | 318.0 | 78 | 1 | 0 | 1 | 79 | 1.000 | | | | | |
| | | Alex Verdugo | 37 | 36 | 334.0 | 62 | 3 | 2 | 0 | 67 | .970 | | | | | |
| | | Shin-Soo Choo | 31 | 31 | 270.7 | 42 | 2 | 0 | 0 | 44 | 1.000 | | | | | |
| | | Yonathan Daza | 14 | 10 | 95.7 | 18 | 0 | 0 | 0 | 18 | 1.000 | | | | | |
| | | Jesus Sanchez | 4 | 0 | 14.0 | 3 | 0 | 0 | 0 | 3 | 1.000 | | | | | |
| | | Leody Taveras | 2 | 0 | 4.0 | 2 | 0 | 0 | 0 | 2 | 1.000 | | | | | |
| | | Total | 177 | 162 | 1470.7 | 312 | 8 | 5 | 2 | 325 | .985 | | | | | |
| | | | | | | | | | | | | | | | | |
| cf | | Mike Yastrzemski | 74 | 72 | 650.7 | 156 | 7 | 3 | 0 | 166 | .982 | | | | | |
| | | Alex Verdugo | 52 | 52 | 467.3 | 94 | 3 | 3 | 0 | 100 | .970 | | | | | |
| | | Manuel Margot | 21 | 20 | 196.7 | 57 | 3 | 1 | 0 | 61 | .984 | | | | | |
| | | Yonathan Daza | 18 | 18 | 150.0 | 43 | 1 | 0 | 0 | 44 | 1.000 | | | | | |
| | | Leody Taveras | 2 | 0 | 2.0 | 3 | 0 | 0 | 0 | 3 | 1.000 | | | | | |
| | | Jesus Sanchez | 3 | 0 | 4.0 | 0 | 0 | 0 | 0 | 0 | .000 | | | | | |
| | | Total | 170 | 162 | 1470.7 | 353 | 14 | 7 | 0 | 374 | .981 | | | | | |
| | | | | | | | | | | | | | | | | |
| rf | | Manuel Margot | 68 | 67 | 595.3 | 126 | 4 | 2 | 1 | 132 | .985 | | | | | |
| | | Josh Bell | 62 | 62 | 512.0 | 86 | 5 | 3 | 1 | 94 | .968 | | | | | |
| | | Yonathan Daza | 31 | 23 | 211.0 | 42 | 3 | 1 | 0 | 46 | .978 | | | | | |
| | | Alex Verdugo | 12 | 10 | 95.0 | 14 | 0 | 1 | 0 | 15 | .933 | | | | | |
| | | Jesus Sanchez | 33 | 0 | 57.3 | 5 | 0 | 0 | 0 | 5 | 1.000 | | | | | |
| | | Total | 206 | 162 | 1470.7 | 273 | 12 | 7 | 2 | 292 | .976 | | | | | |
| | | | | | | | | | | | | | | | | |
| | | Total | 162 | 162 | 1470.7 | 4412 | 1720 | 100 | 145 | 6232 | .984 | 27 | | | | |