| NAME | HR | SO | SEASON | TM | G | W | L | W% | GS | ERA | CG | SHO | SV | IP | H | ER | R | 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 | S. Alcantara | 21 | 201 | 2021 | 33 | 9 | 15 | .375 | 33 | 3.19 | 1 | 0 | 0 | 205.2 | 171 | 73 | 85 | 50 | 10 | 0 | 2 | 837 | 6 | 8.80 | 2.19 | 4.02 | 0.92 | 24.0 | 6.0 | 1.07 | .270 | 3.72 | 76 | 3.41 | 82 | 7.48 | 17.2 | ||
| 2 | A. Alzolay | 25 | 128 | 2021 | 29 | 5 | 13 | .278 | 21 | 4.58 | 0 | 0 | 1 | 125.2 | 112 | 64 | 66 | 34 | 5 | 1 | 2 | 519 | 2 | 9.17 | 2.44 | 3.76 | 1.79 | 24.7 | 6.6 | 1.16 | .266 | 4.73 | 110 | 4.64 | 111 | 8.02 | -6.3 | ||
| 3 | T. Anderson | 27 | 134 | 2021 | TOT | 31 | 7 | 11 | .389 | 31 | 4.53 | 0 | 0 | 0 | 167.0 | 170 | 84 | 87 | 38 | 1 | 0 | 2 | 703 | 1 | 7.22 | 2.05 | 3.53 | 1.46 | 19.1 | 5.4 | 1.25 | .284 | 4.69 | 108 | 4.36 | 104 | 9.16 | -3 | |
| 4 | J. Arrieta | 24 | 83 | 2021 | TOT | 24 | 5 | 14 | .263 | 24 | 7.39 | 0 | 0 | 0 | 98.2 | 131 | 81 | 91 | 44 | 6 | 0 | 3 | 469 | 3 | 7.57 | 4.01 | 1.89 | 2.19 | 17.7 | 9.4 | 1.77 | .343 | 8.30 | 180 | 6.16 | 147 | 11.95 | -21.8 | |
| 5 | J. BerrÃos | 22 | 204 | 2021 | TOT | 32 | 12 | 9 | .571 | 32 | 3.52 | 1 | 0 | 0 | 192.0 | 159 | 75 | 83 | 45 | 15 | 0 | 0 | 781 | 3 | 9.56 | 2.11 | 4.53 | 1.03 | 26.1 | 5.8 | 1.06 | .277 | 3.89 | 81 | 3.46 | 82 | 7.45 | 16.5 | |
| 6 | M. Bumgarner | 24 | 124 | 2021 | 26 | 7 | 10 | .412 | 26 | 4.67 | 1 | 1 | 0 | 146.1 | 134 | 76 | 82 | 39 | 11 | 0 | 2 | 613 | 2 | 7.63 | 2.40 | 3.18 | 1.48 | 20.2 | 6.4 | 1.18 | .265 | 5.04 | 111 | 4.62 | 112 | 8.24 | -8.8 | ||
| 7 | D. Bundy | 20 | 84 | 2021 | 23 | 2 | 9 | .182 | 19 | 6.06 | 0 | 0 | 0 | 90.2 | 89 | 61 | 64 | 34 | 6 | 1 | 0 | 397 | 1 | 8.34 | 3.38 | 2.47 | 1.99 | 21.2 | 8.6 | 1.36 | .273 | 6.35 | 137 | 5.50 | 126 | 8.83 | -11.2 | ||
| 8 | D. Cease | 20 | 226 | 2021 | 32 | 13 | 7 | .650 | 32 | 3.91 | 1 | 1 | 0 | 165.2 | 139 | 72 | 77 | 68 | 9 | 0 | 0 | 708 | 13 | 12.28 | 3.69 | 3.32 | 1.09 | 31.9 | 9.6 | 1.25 | .309 | 4.18 | 90 | 3.40 | 76 | 7.55 | 18.9 | ||
| 9 | G. Cole | 24 | 243 | 2021 | 30 | 16 | 8 | .667 | 30 | 3.23 | 2 | 1 | 0 | 181.1 | 151 | 65 | 69 | 41 | 2 | 0 | 0 | 726 | 5 | 12.06 | 2.03 | 5.93 | 1.19 | 33.5 | 5.6 | 1.06 | .305 | 3.42 | 76 | 2.91 | 67 | 7.49 | 28.1 | ||
| 10 | P. Corbin | 37 | 143 | 2021 | 31 | 9 | 16 | .360 | 31 | 5.82 | 0 | 0 | 0 | 171.2 | 192 | 111 | 114 | 60 | 3 | 0 | 2 | 751 | 0 | 7.50 | 3.15 | 2.38 | 1.94 | 19.0 | 8.0 | 1.47 | .305 | 5.98 | 139 | 5.40 | 126 | 10.07 | -21 | ||
| 11 | W. Crowe | 25 | 111 | 2021 | 26 | 4 | 8 | .333 | 25 | 5.48 | 0 | 0 | 0 | 116.2 | 126 | 71 | 75 | 57 | 6 | 0 | 1 | 524 | 3 | 8.56 | 4.40 | 1.95 | 1.93 | 21.2 | 10.9 | 1.57 | .311 | 5.79 | 129 | 5.67 | 134 | 9.72 | -18.5 | ||
| 12 | Y. Darvish | 28 | 199 | 2021 | 30 | 8 | 11 | .421 | 30 | 4.22 | 0 | 0 | 0 | 166.1 | 138 | 78 | 81 | 44 | 8 | 0 | 1 | 681 | 9 | 10.77 | 2.38 | 4.52 | 1.52 | 29.2 | 6.5 | 1.09 | .274 | 4.38 | 107 | 3.90 | 93 | 7.47 | 5.6 | ||
| 13 | Z. Davies | 25 | 114 | 2021 | 32 | 6 | 12 | .333 | 32 | 5.78 | 0 | 0 | 0 | 148.0 | 162 | 95 | 99 | 75 | 5 | 0 | 2 | 668 | 0 | 6.93 | 4.56 | 1.52 | 1.52 | 17.1 | 11.2 | 1.60 | .305 | 6.02 | 139 | 5.44 | 130 | 9.85 | -20.7 | ||
| 14 | E. Fedde | 23 | 128 | 2021 | 29 | 7 | 9 | .438 | 27 | 5.47 | 0 | 0 | 0 | 133.1 | 144 | 81 | 90 | 48 | 4 | 1 | 6 | 590 | 1 | 8.64 | 3.24 | 2.67 | 1.55 | 21.7 | 8.1 | 1.44 | .313 | 6.07 | 130 | 4.65 | 109 | 9.72 | -5.4 | ||
| 15 | M. Foltynewicz | 35 | 97 | 2021 | 28 | 2 | 12 | .143 | 24 | 5.44 | 0 | 0 | 0 | 139.0 | 139 | 84 | 86 | 36 | 9 | 0 | 0 | 586 | 2 | 6.28 | 2.33 | 2.69 | 2.27 | 16.6 | 6.1 | 1.26 | .254 | 5.57 | 123 | 6.01 | 136 | 9.00 | -23.9 | ||
| 16 | K. Freeland | 20 | 105 | 2021 | 23 | 7 | 8 | .467 | 23 | 4.33 | 0 | 0 | 0 | 120.2 | 133 | 58 | 59 | 38 | 4 | 0 | 1 | 515 | 1 | 7.83 | 2.83 | 2.76 | 1.49 | 20.4 | 7.4 | 1.42 | .325 | 4.40 | 90 | 4.62 | 104 | 9.92 | -1.9 | ||
| 17 | K. Gausman | 20 | 227 | 2021 | 33 | 14 | 6 | .700 | 33 | 2.81 | 0 | 0 | 0 | 192.0 | 150 | 60 | 66 | 50 | 4 | 0 | 1 | 775 | 7 | 10.64 | 2.34 | 4.54 | 0.94 | 29.3 | 6.5 | 1.04 | .274 | 3.09 | 70 | 3.00 | 74 | 7.03 | 23.5 | ||
| 18 | L. Giolito | 27 | 201 | 2021 | 31 | 11 | 9 | .550 | 31 | 3.53 | 1 | 0 | 0 | 178.2 | 145 | 70 | 74 | 52 | 2 | 0 | 1 | 720 | 12 | 10.13 | 2.62 | 3.87 | 1.36 | 27.9 | 7.2 | 1.10 | .269 | 3.73 | 81 | 3.78 | 85 | 7.30 | 13 | ||
| 19 | A. Gomber | 20 | 113 | 2021 | 23 | 9 | 9 | .500 | 23 | 4.53 | 0 | 0 | 0 | 115.1 | 102 | 58 | 64 | 41 | 3 | 0 | 2 | 488 | 1 | 8.82 | 3.20 | 2.76 | 1.56 | 23.2 | 8.4 | 1.24 | .264 | 4.99 | 94 | 4.60 | 103 | 7.96 | -1.6 | ||
| 20 | M. Gonzales | 29 | 108 | 2021 | 25 | 10 | 6 | .625 | 25 | 3.96 | 1 | 0 | 0 | 143.1 | 125 | 63 | 64 | 42 | 5 | 0 | 3 | 585 | 1 | 6.78 | 2.64 | 2.57 | 1.82 | 18.5 | 7.2 | 1.17 | .239 | 4.02 | 95 | 5.27 | 127 | 7.85 | -18.6 | ||
| 21 | J. Gray | 21 | 157 | 2021 | 29 | 8 | 12 | .400 | 29 | 4.59 | 0 | 0 | 0 | 149.0 | 140 | 76 | 83 | 58 | 8 | 0 | 2 | 644 | 7 | 9.48 | 3.50 | 2.71 | 1.27 | 24.4 | 9.0 | 1.33 | .298 | 5.01 | 95 | 4.22 | 95 | 8.46 | 4 | ||
| 22 | Z. Greinke | 30 | 120 | 2021 | 30 | 11 | 6 | .647 | 29 | 4.16 | 1 | 0 | 0 | 171.0 | 164 | 79 | 82 | 36 | 2 | 0 | 0 | 697 | 3 | 6.32 | 1.89 | 3.33 | 1.58 | 17.2 | 5.2 | 1.17 | .263 | 4.32 | 97 | 4.71 | 111 | 8.63 | -9.1 | ||
| 23 | J.A. Happ | 30 | 122 | 2021 | TOT | 30 | 10 | 8 | .556 | 30 | 5.79 | 0 | 0 | 0 | 152.1 | 177 | 98 | 100 | 48 | 3 | 0 | 0 | 671 | 4 | 7.21 | 2.84 | 2.54 | 1.77 | 18.2 | 7.2 | 1.48 | .314 | 5.91 | 137 | 5.13 | 122 | 10.46 | -15.8 | |
| 24 | A. Heaney | 29 | 150 | 2021 | TOT | 30 | 8 | 9 | .471 | 23 | 5.83 | 0 | 0 | 0 | 129.2 | 130 | 84 | 85 | 41 | 6 | 2 | 0 | 558 | 4 | 10.41 | 2.85 | 3.66 | 2.01 | 26.9 | 7.3 | 1.32 | .304 | 5.90 | 134 | 4.84 | 111 | 9.02 | -7 | |
| 25 | K. Hendricks | 31 | 131 | 2021 | 32 | 14 | 7 | .667 | 32 | 4.77 | 1 | 0 | 0 | 181.0 | 200 | 96 | 101 | 44 | 13 | 0 | 3 | 785 | 2 | 6.51 | 2.19 | 2.98 | 1.54 | 16.7 | 5.6 | 1.35 | .299 | 5.02 | 115 | 4.89 | 116 | 9.94 | -14.1 | ||