Ad Gumbert had a 3-3 record with an ERA of 3.14 and 16 strikeouts in 6 appearances in his rookie season in 1888.
| 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 |  | A. Gumbert | 1888 |  CWS | 6 | 3 | 3 | .500 | 6 | 3.14 | 16 | 5 | 0 | 0 | 48.2 | 44 | 17 | 24 | 0 | 10 | 5 | 0 | 203 | 0 | 2.96 | 1.85 | 1.60 | 0.00 | 7.9 | 4.9 | 1.11 | .256 | 4.44 | 104 | 2.85 | 90 | 8.14 | 2.3 |
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