| NAME | ERA | G | SEASON | TM | W | L | W% | GS | SO | CG | SHO | SV | IP | H | ER | R | HR | BB | HBP | GF | IBB | TBF | WP | K/9 | BB/9 | K/BB | HR/9 | K% | BB% | WHIP | BABIP | RA | ERA- | FIP | FIP- | H/9 | PRAA | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | A. Chafin | 1.83 | 71 | 2021 | TOT | 2 | 4 | .333 | 0 | 64 | 0 | 0 | 5 | 68.2 | 45 | 14 | 14 | 4 | 19 | 2 | 11 | 1 | 266 | 3 | 8.39 | 2.49 | 3.37 | 0.52 | 24.1 | 7.1 | 0.93 | .232 | 1.83 | 44 | 2.97 | 71 | 5.90 | 9.3 | |
| 2 | K. Graveman | 1.77 | 53 | 2021 | TOT | 5 | 1 | .833 | 0 | 61 | 0 | 0 | 10 | 56.0 | 35 | 11 | 15 | 3 | 20 | 8 | 17 | 1 | 222 | 3 | 9.80 | 3.21 | 3.05 | 0.48 | 27.5 | 9.0 | 0.98 | .246 | 2.41 | 42 | 3.18 | 76 | 5.63 | 6.3 | |
| 3 | J. Hader | 1.23 | 60 | 2021 | 4 | 2 | .667 | 0 | 102 | 0 | 0 | 34 | 58.2 | 25 | 8 | 8 | 3 | 24 | 2 | 42 | 0 | 224 | 3 | 15.65 | 3.68 | 4.25 | 0.46 | 45.5 | 10.7 | 0.84 | .237 | 1.23 | 29 | 1.68 | 39 | 3.84 | 16.8 | ||
| 4 | L. Jackson | 1.98 | 71 | 2021 | 2 | 2 | .500 | 0 | 70 | 0 | 0 | 0 | 63.2 | 45 | 14 | 15 | 6 | 29 | 2 | 5 | 2 | 261 | 3 | 9.90 | 4.10 | 2.41 | 0.85 | 26.8 | 11.1 | 1.16 | .253 | 2.12 | 47 | 3.65 | 87 | 6.36 | 3.9 | ||
| 5 | A. Kittredge | 1.88 | 57 | 2021 | 9 | 3 | .750 | 4 | 77 | 0 | 0 | 8 | 71.2 | 55 | 15 | 21 | 7 | 15 | 3 | 15 | 5 | 282 | 5 | 9.67 | 1.88 | 5.13 | 0.88 | 27.3 | 5.3 | 0.98 | .267 | 2.64 | 46 | 3.04 | 74 | 6.91 | 8.7 | ||
| 6 | D. Leone | 1.51 | 57 | 2021 | 4 | 5 | .444 | 4 | 50 | 0 | 0 | 2 | 53.2 | 37 | 9 | 15 | 2 | 22 | 1 | 11 | 1 | 219 | 2 | 8.39 | 3.69 | 2.27 | 0.34 | 22.8 | 10.0 | 1.10 | .243 | 2.52 | 37 | 3.07 | 75 | 6.20 | 6.1 | ||
| 7 | A. Loup | 0.95 | 65 | 2021 | 6 | 0 | 1.000 | 2 | 57 | 0 | 0 | 0 | 56.2 | 37 | 6 | 9 | 1 | 16 | 4 | 6 | 0 | 218 | 0 | 9.05 | 2.54 | 3.56 | 0.16 | 26.1 | 7.3 | 0.94 | .257 | 1.43 | 24 | 2.44 | 58 | 5.88 | 11.2 | ||
| 8 | C. McHugh | 1.55 | 37 | 2021 | 6 | 1 | .857 | 7 | 74 | 0 | 0 | 1 | 64.0 | 48 | 11 | 15 | 3 | 12 | 2 | 11 | 2 | 247 | 2 | 10.41 | 1.69 | 6.17 | 0.42 | 30.0 | 4.9 | 0.94 | .288 | 2.11 | 38 | 2.12 | 52 | 6.75 | 14.6 | ||
| 9 | J. Nelson | 1.86 | 28 | 2021 | 1 | 2 | .333 | 1 | 44 | 0 | 0 | 0 | 29.0 | 14 | 6 | 8 | 0 | 13 | 4 | 5 | 0 | 116 | 4 | 13.66 | 4.03 | 3.38 | 0.00 | 37.9 | 11.2 | 0.93 | .255 | 2.48 | 46 | 1.89 | 44 | 4.34 | 7.7 | ||
| 10 | D. Pomeranz | 1.75 | 27 | 2021 | 1 | 0 | 1.000 | 0 | 30 | 0 | 0 | 0 | 25.2 | 19 | 5 | 6 | 2 | 10 | 0 | 2 | 1 | 102 | 1 | 10.52 | 3.51 | 3.00 | 0.70 | 29.4 | 9.8 | 1.13 | .283 | 2.10 | 44 | 3.01 | 72 | 6.66 | 3.4 | ||
| 11 | C. Sadler | 0.67 | 42 | 2021 | 0 | 1 | .000 | 0 | 37 | 0 | 0 | 0 | 40.1 | 19 | 3 | 4 | 1 | 10 | 1 | 2 | 0 | 145 | 2 | 8.26 | 2.23 | 3.70 | 0.22 | 25.5 | 6.9 | 0.72 | .188 | 0.89 | 16 | 2.47 | 59 | 4.24 | 7.7 | ||
| 12 | D. Steckenrider | 2.00 | 62 | 2021 | 5 | 2 | .714 | 0 | 58 | 0 | 0 | 14 | 67.2 | 52 | 15 | 16 | 5 | 17 | 4 | 20 | 2 | 267 | 0 | 7.71 | 2.26 | 3.41 | 0.67 | 21.7 | 6.4 | 1.02 | .257 | 2.13 | 48 | 3.34 | 81 | 6.92 | 6.2 | ||
| 13 | R. Suárez | 1.36 | 39 | 2021 | 8 | 5 | .615 | 12 | 107 | 1 | 1 | 4 | 106.0 | 73 | 16 | 20 | 4 | 33 | 5 | 13 | 3 | 418 | 1 | 9.08 | 2.80 | 3.24 | 0.34 | 25.6 | 7.9 | 1.00 | .257 | 1.70 | 32 | 2.71 | 63 | 6.20 | 18.7 | ||
| 14 | B. Treinen | 1.99 | 72 | 2021 | 6 | 5 | .545 | 0 | 85 | 0 | 0 | 7 | 72.1 | 46 | 16 | 20 | 5 | 25 | 3 | 10 | 1 | 286 | 3 | 10.58 | 3.11 | 3.40 | 0.62 | 29.7 | 8.7 | 0.98 | .244 | 2.49 | 49 | 2.87 | 67 | 5.72 | 11.3 | ||
| 15 | A. Warren | 1.29 | 26 | 2021 | 3 | 0 | 1.000 | 0 | 34 | 0 | 0 | 0 | 21.0 | 11 | 3 | 3 | 1 | 8 | 1 | 6 | 1 | 82 | 0 | 14.57 | 3.43 | 4.25 | 0.43 | 41.5 | 9.8 | 0.90 | .263 | 1.29 | 29 | 1.83 | 41 | 4.71 | 5.9 | ||
| 16 | C. Baragar | 1.57 | 25 | 2021 | 2 | 1 | .667 | 0 | 16 | 0 | 0 | 2 | 23.0 | 19 | 4 | 7 | 1 | 12 | 3 | 5 | 2 | 98 | 0 | 6.26 | 4.70 | 1.33 | 0.39 | 16.3 | 12.2 | 1.35 | .273 | 2.74 | 39 | 4.29 | 105 | 7.43 | -0.6 | ||
| 17 | J. Barlow | 1.55 | 31 | 2021 | 0 | 2 | .000 | 0 | 27 | 0 | 0 | 11 | 29.0 | 12 | 5 | 9 | 2 | 12 | 0 | 18 | 0 | 111 | 1 | 8.38 | 3.72 | 2.25 | 0.62 | 24.3 | 10.8 | 0.83 | .143 | 2.79 | 35 | 3.44 | 78 | 3.72 | 3.1 | ||
| 18 | G. Whitlock | 1.96 | 46 | 2021 | 8 | 4 | .667 | 0 | 81 | 0 | 0 | 2 | 73.1 | 64 | 16 | 22 | 6 | 17 | 3 | 11 | 2 | 298 | 3 | 9.94 | 2.09 | 4.76 | 0.74 | 27.2 | 5.7 | 1.10 | .304 | 2.70 | 43 | 2.83 | 66 | 7.85 | 12 | ||
| 19 | E. Clase | 1.29 | 71 | 2021 | 4 | 5 | .444 | 0 | 74 | 0 | 0 | 24 | 69.2 | 51 | 10 | 18 | 2 | 16 | 0 | 51 | 3 | 279 | 3 | 9.56 | 2.07 | 4.63 | 0.26 | 26.5 | 5.7 | 0.96 | .262 | 2.33 | 31 | 2.10 | 50 | 6.59 | 16.5 |