| NAME | H | SEASON | TM | G | W | L | W% | GS | ERA | SO | CG | SHO | SV | IP | 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 |  | L. Gilbert | 112 | 2021 |  SEA | 24 | 6 | 5 | .545 | 24 | 4.68 | 128 | 0 | 0 | 0 | 119.1 | 62 | 63 | 17 | 28 | 6 | 0 | 2 | 503 | 9 | 9.65 | 2.11 | 4.57 | 1.28 | 25.4 | 5.6 | 1.17 | .293 | 4.75 | 113 | 3.72 | 90 | 8.45 | 5.6 |
| 2 | | L. Gilbert | 170 | 2022 | SEA | 32 | 13 | 6 | .684 | 32 | 3.20 | 174 | 0 | 0 | 0 | 185.2 | 66 | 71 | 19 | 49 | 6 | 0 | 2 | 766 | 5 | 8.43 | 2.38 | 3.55 | 0.92 | 22.7 | 6.4 | 1.18 | .292 | 3.44 | 86 | 3.45 | 90 | 8.24 | 7.6 |
| 3 | | L. Gilbert | 169 | 2023 | SEA | 32 | 12 | 7 | .632 | 32 | 3.73 | 189 | 1 | 1 | 0 | 190.2 | 79 | 82 | 29 | 36 | 2 | 0 | 1 | 770 | 6 | 8.92 | 1.70 | 5.25 | 1.37 | 24.5 | 4.7 | 1.08 | .272 | 3.87 | 93 | 3.84 | 94 | 7.98 | 5.6 |
| 4 | | L. Gilbert | 148 | 2024 | SEA | 33 | 9 | 12 | .429 | 33 | 3.23 | 220 | 1 | 0 | 0 | 208.2 | 75 | 83 | 26 | 37 | 4 | 0 | 1 | 803 | 11 | 9.49 | 1.60 | 5.95 | 1.12 | 27.4 | 4.6 | 0.89 | .236 | 3.58 | 86 | 3.26 | 83 | 6.38 | 15.6 |
| 5 | | L. Gilbert | 104 | 2025 | SEA | 25 | 6 | 6 | .500 | 25 | 3.44 | 173 | 0 | 0 | 0 | 131.0 | 50 | 53 | 20 | 31 | 7 | 0 | 0 | 535 | 10 | 11.89 | 2.13 | 5.58 | 1.37 | 32.3 | 5.8 | 1.03 | .276 | 3.64 | 89 | 3.34 | 83 | 7.15 | 9.8 |
| Total | 703 | 146 | 46 | 36 | .561 | 146 | 3.58 | 884 | 2 | 1 | 0 | 835.1 | 332 | 352 | 111 | 181 | 25 | 0 | 6 | 3,377 | 41 | 9.52 | 1.95 | 4.88 | 1.20 | 26.2 | 5.4 | 1.06 | .272 | 3.79 | 92 | 3.51 | 88 | 7.57 | 44.3 |
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