I don't have anything for this season, but DJ Herz had 1.12 home runs allowed per inning pitched * 9 in his rookie season in 2024.
| NAME | HR/IP*9 | HR | IP | SEASON | TM | G | W | L | W% | GS | ERA | SO | CG | SHO | SV | H | ER | R | 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 |  | DJ Herz | 1.12 | 11 | 88.2 | 2024 |  WSH | 19 | 4 | 9 | .308 | 19 | 4.16 | 106 | 0 | 0 | 0 | 76 | 41 | 45 | 36 | 3 | 0 | 0 | 382 | 5 | 10.76 | 3.65 | 2.94 | 1.12 | 27.7 | 9.4 | 1.26 | .288 | 4.57 | 102 | 3.70 | 90 | 7.71 | 3.9 |
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