| NAME | SO | SEASON | TM | G | W | L | W% | GS | ERA | 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 |  | F. Valdez | 76 | 2020 |  HOU | 11 | 5 | 3 | .625 | 10 | 3.57 | 0 | 0 | 0 | 70.2 | 63 | 28 | 32 | 5 | 16 | 5 | 0 | 0 | 288 | 6 | 9.68 | 2.04 | 4.75 | 0.64 | 26.4 | 5.6 | 1.12 | .312 | 4.08 | 81 | 2.84 | 65 | 8.02 | 12.3 |
| 2 | | F. Valdez | 125 | 2021 | HOU | 22 | 11 | 6 | .647 | 22 | 3.14 | 1 | 0 | 0 | 134.2 | 110 | 47 | 52 | 12 | 58 | 11 | 0 | 1 | 572 | 9 | 8.35 | 3.88 | 2.16 | 0.80 | 21.9 | 10.1 | 1.25 | .268 | 3.48 | 73 | 4.00 | 95 | 7.35 | 3.4 |
| 3 | | F. Valdez | 194 | 2022 | HOU | 31 | 17 | 6 | .739 | 31 | 2.82 | 3 | 1 | 0 | 201.1 | 166 | 63 | 71 | 11 | 67 | 11 | 0 | 0 | 827 | 11 | 8.67 | 3.00 | 2.90 | 0.49 | 23.5 | 8.1 | 1.16 | .285 | 3.17 | 73 | 3.05 | 78 | 7.42 | 19.1 |
| 4 | | F. Valdez | 200 | 2023 | HOU | 31 | 12 | 11 | .522 | 31 | 3.45 | 2 | 2 | 0 | 198.0 | 166 | 76 | 86 | 19 | 57 | 10 | 0 | 0 | 808 | 6 | 9.09 | 2.59 | 3.51 | 0.86 | 24.8 | 7.1 | 1.13 | .282 | 3.91 | 82 | 3.49 | 82 | 7.55 | 16.5 |
| 5 | | F. Valdez | 169 | 2024 | HOU | 28 | 15 | 7 | .682 | 28 | 2.91 | 1 | 0 | 0 | 176.1 | 140 | 57 | 60 | 13 | 55 | 6 | 0 | 0 | 703 | 8 | 8.63 | 2.81 | 3.07 | 0.66 | 24.0 | 7.8 | 1.11 | .276 | 3.06 | 73 | 3.24 | 80 | 7.15 | 15.9 |
| 6 | | F. Valdez | 145 | 2025 | HOU | 23 | 11 | 5 | .688 | 23 | 2.97 | 2 | 0 | 0 | 145.2 | 120 | 48 | 50 | 8 | 49 | 6 | 0 | 0 | 595 | 8 | 8.96 | 3.03 | 2.96 | 0.49 | 24.4 | 8.2 | 1.16 | .289 | 3.09 | 74 | 2.96 | 72 | 7.41 | 19 |
| Total | 909 | 146 | 71 | 38 | .651 | 145 | 3.10 | 9 | 3 | 0 | 926.2 | 765 | 319 | 351 | 68 | 302 | 49 | 0 | 1 | 3,793 | 48 | 8.83 | 2.93 | 3.01 | 0.66 | 24.0 | 8.0 | 1.15 | .283 | 3.41 | 76 | 3.29 | 80 | 7.43 | 86.2 |
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