Josh Hader is 17-17 with an ERA of 2.48, 541 strikeouts and 125 saves in 269 appearances for the Brewers in his career.
| 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 | 2017 |  MIL | 35 | 2 | 3 | .400 | 0 | 2.08 | 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 | 2018 | MIL | 55 | 6 | 1 | .857 | 0 | 2.43 | 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 | 2019 | MIL | 61 | 3 | 5 | .375 | 0 | 2.62 | 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 | 2020 |  MIL | 21 | 1 | 2 | .333 | 0 | 3.79 | 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 | 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 |
| 6 | | J. Hader | 2022 | MIL | 37 | 1 | 4 | .200 | 0 | 4.24 | 59 | 0 | 0 | 29 | 34.0 | 26 | 16 | 16 | 7 | 12 | 1 | 34 | 0 | 141 | 2 | 15.62 | 3.18 | 4.92 | 1.85 | 41.8 | 8.5 | 1.12 | .306 | 4.24 | 105 | 3.46 | 86 | 6.88 | 2.1 |
| Total | 269 | 17 | 17 | .500 | 0 | 2.48 | 541 | 0 | 0 | 125 | 316.1 | 161 | 87 | 90 | 41 | 118 | 15 | 155 | 3 | 1,226 | 7 | 15.39 | 3.36 | 4.58 | 1.17 | 44.1 | 9.6 | 0.88 | .235 | 2.56 | 59 | 2.69 | 63 | 4.58 | 54.8 |
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