| NAME | R | SEASON | TM | G | W | L | W% | GS | ERA | SO | CG | SHO | SV | IP | H | ER | 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 | 63 | 2021 |  SEA | 24 | 6 | 5 | .545 | 24 | 4.68 | 128 | 0 | 0 | 0 | 119.1 | 112 | 62 | 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 | 71 | 2022 | SEA | 32 | 13 | 6 | .684 | 32 | 3.20 | 174 | 0 | 0 | 0 | 185.2 | 170 | 66 | 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 | 82 | 2023 | SEA | 32 | 12 | 7 | .632 | 32 | 3.73 | 189 | 1 | 1 | 0 | 190.2 | 169 | 79 | 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 | 83 | 2024 | SEA | 33 | 8 | 12 | .400 | 33 | 3.23 | 220 | 1 | 0 | 0 | 208.2 | 148 | 75 | 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 | 8 | 2025 | SEA | 6 | 1 | 1 | .500 | 6 | 2.37 | 44 | 0 | 0 | 0 | 30.1 | 18 | 8 | 3 | 6 | 1 | 0 | 0 | 117 | 2 | 13.05 | 1.78 | 7.33 | 0.89 | 37.6 | 5.1 | 0.79 | .238 | 2.37 | 64 | 2.15 | 55 | 5.34 | 6.1 |
| Total | 307 | 127 | 40 | 31 | .563 | 127 | 3.55 | 755 | 2 | 1 | 0 | 734.2 | 617 | 290 | 94 | 156 | 19 | 0 | 6 | 2,959 | 33 | 9.25 | 1.91 | 4.84 | 1.15 | 25.5 | 5.3 | 1.05 | .270 | 3.76 | 91 | 3.49 | 88 | 7.56 | 40.5 |
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