| NAME | ERA | SEASON | TM | G | 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 |  | J. Hader | 2.08 | 2017 |  MIL | 35 | 2 | 3 | .400 | 0 | 68 | 0 | 0 | 0 | 47.2 | 25 | 11 | 11 | 4 | 22 | 4 | 2 | 1 | 188 | 0 | 12.84 | 4.15 | 3.09 | 0.76 | 36.2 | 11.7 | 0.99 | .233 | 2.08 | 47 | 3.02 | 69 | 4.72 | 7 |
| 2 | | J. Hader | 2.43 | 2018 | MIL | 55 | 6 | 1 | .857 | 0 | 143 | 0 | 0 | 12 | 81.1 | 36 | 22 | 23 | 9 | 30 | 1 | 14 | 0 | 306 | 0 | 15.82 | 3.32 | 4.77 | 1.00 | 46.7 | 9.8 | 0.81 | .220 | 2.55 | 60 | 2.22 | 55 | 3.98 | 16.6 |
| 3 | | J. Hader | 2.62 | 2019 | MIL | 61 | 3 | 5 | .375 | 0 | 138 | 0 | 0 | 37 | 75.2 | 41 | 22 | 24 | 15 | 20 | 4 | 46 | 2 | 289 | 0 | 16.41 | 2.38 | 6.90 | 1.78 | 47.8 | 6.9 | 0.81 | .232 | 2.85 | 59 | 3.08 | 70 | 4.88 | 11.3 |
| 4 | | J. Hader | 3.79 | 2020 |  MIL | 21 | 1 | 2 | .333 | 0 | 31 | 0 | 0 | 13 | 19.0 | 8 | 8 | 8 | 3 | 10 | 3 | 17 | 0 | 78 | 2 | 14.68 | 4.74 | 3.10 | 1.42 | 39.7 | 12.8 | 0.95 | .161 | 3.79 | 85 | 4.02 | 91 | 3.79 | 0.9 |
| 5 | | J. Hader | 1.23 | 2021 | MIL | 60 | 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 |
| 6 | | J. Hader | 5.22 | 2022 | TOT | 56 | 2 | 5 | .286 | 0 | 81 | 0 | 0 | 36 | 50.0 | 43 | 29 | 30 | 8 | 21 | 4 | 45 | 0 | 219 | 5 | 14.58 | 3.78 | 3.86 | 1.44 | 37.0 | 9.6 | 1.28 | .333 | 5.40 | 133 | 3.45 | 86 | 7.74 | 3.1 |
| 7 |  | J. Hader | 1.28 | 2023 |  SDP | 61 | 2 | 3 | .400 | 0 | 85 | 0 | 0 | 32 | 56.1 | 32 | 8 | 11 | 3 | 30 | 3 | 52 | 2 | 231 | 3 | 13.58 | 4.79 | 2.83 | 0.48 | 36.8 | 13.0 | 1.10 | .264 | 1.76 | 30 | 2.68 | 62 | 5.11 | 10.4 |
| 8 |  | J. Hader | 3.80 | 2024 |  HOU | 71 | 8 | 8 | .500 | 0 | 105 | 0 | 0 | 34 | 71.0 | 43 | 30 | 33 | 12 | 25 | 1 | 62 | 0 | 278 | 4 | 13.31 | 3.17 | 4.20 | 1.52 | 37.8 | 9.0 | 0.96 | .230 | 4.18 | 96 | 3.50 | 86 | 5.45 | 4.3 |
| 9 | | J. Hader | 1.86 | 2025 | HOU | 37 | 5 | 1 | .833 | 0 | 59 | 0 | 0 | 24 | 38.2 | 21 | 8 | 9 | 6 | 7 | 2 | 34 | 0 | 147 | 2 | 13.73 | 1.63 | 8.43 | 1.40 | 40.1 | 4.8 | 0.72 | .205 | 2.09 | 47 | 2.75 | 68 | 4.89 | 5.7 |
| Total | 2.64 | 457 | 33 | 30 | .524 | 0 | 812 | 0 | 0 | 222 | 498.1 | 274 | 146 | 157 | 63 | 189 | 24 | 314 | 5 | 1,960 | 19 | 14.66 | 3.41 | 4.30 | 1.14 | 41.4 | 9.6 | 0.93 | .242 | 2.84 | 64 | 2.83 | 67 | 4.95 | 76.1 |
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