Josh Hader is 21-19 with an ERA of 2.71, 424 strikeouts and 154 saves in 279 appearances since 2021.
| NAME | SEASON | TM | G | W | L | W% | GS | ERA | 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 | 2021 |  MIL | 60 | 4 | 2 | .667 | 0 | 1.23 | 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 |
| 2 | | J. Hader | 2022 | TOT | 56 | 2 | 5 | .286 | 0 | 5.22 | 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 |
| 3 |  | J. Hader | 2023 |  SDP | 61 | 2 | 3 | .400 | 0 | 1.28 | 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 |
| 4 |  | J. Hader | 2024 |  HOU | 71 | 8 | 8 | .500 | 0 | 3.80 | 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 |
| 5 | | J. Hader | 2025 | HOU | 31 | 5 | 1 | .833 | 0 | 1.62 | 51 | 0 | 0 | 18 | 33.1 | 17 | 6 | 7 | 4 | 7 | 1 | 28 | 0 | 126 | 2 | 13.77 | 1.89 | 7.29 | 1.08 | 40.5 | 5.6 | 0.72 | .206 | 1.89 | 41 | 2.28 | 57 | 4.59 | 6.5 |
| Total | 279 | 21 | 19 | .525 | 0 | 2.71 | 424 | 0 | 0 | 154 | 269.1 | 160 | 81 | 89 | 30 | 107 | 11 | 229 | 2 | 1,078 | 17 | 14.17 | 3.58 | 3.96 | 1.00 | 39.3 | 9.9 | 0.99 | .257 | 2.97 | 68 | 2.77 | 67 | 5.35 | 41.1 |
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