George Rettger was 7-3 with an ERA of 3.40, 49 strikeouts and 1 save in 14 appearances in his rookie season in 1891.
| 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 |  | G. Rettger | 1891 | STL | 14 | 7 | 3 | .700 | 12 | 3.40 | 49 | 10 | 1 | 1 | 92.2 | 85 | 35 | 63 | 4 | 51 | 8 | 2 | 420 | 6 | 4.76 | 4.95 | 0.96 | 0.39 | 11.7 | 12.1 | 1.47 | .263 | 6.12 | 86 | 3.94 | 104 | 8.26 | -0.1 |
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