Giovanny Gallegos was 14-15 with an ERA of 2.84, 282 strikeouts and 33 saves in 212 appearances between the 2019 and 2022 seasons.
| 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. Gallegos | 2019 |  STL | 66 | 3 | 2 | .600 | 0 | 2.31 | 93 | 0 | 0 | 1 | 74.0 | 44 | 19 | 19 | 9 | 16 | 3 | 10 | 2 | 279 | 3 | 11.31 | 1.95 | 5.81 | 1.09 | 33.3 | 5.7 | 0.81 | .222 | 2.31 | 55 | 3.04 | 71 | 5.35 | 10.5 |
| 2 | | G. Gallegos | 2020 | STL | 16 | 2 | 2 | .500 | 0 | 3.60 | 21 | 0 | 0 | 4 | 15.0 | 9 | 6 | 6 | 1 | 4 | 0 | 7 | 0 | 57 | 1 | 12.60 | 2.40 | 5.25 | 0.60 | 36.8 | 7.0 | 0.87 | .258 | 3.60 | 84 | 2.05 | 48 | 5.40 | 3.9 |
| 3 | | G. Gallegos | 2021 | STL | 73 | 6 | 5 | .545 | 0 | 3.02 | 95 | 0 | 0 | 14 | 80.1 | 51 | 27 | 28 | 6 | 20 | 6 | 20 | 2 | 310 | 4 | 10.64 | 2.24 | 4.75 | 0.67 | 30.6 | 6.5 | 0.88 | .246 | 3.14 | 74 | 2.74 | 66 | 5.71 | 12.8 |
| 4 | | G. Gallegos | 2022 | STL | 57 | 3 | 6 | .333 | 0 | 3.05 | 73 | 0 | 0 | 14 | 59.0 | 42 | 20 | 23 | 6 | 18 | 0 | 30 | 1 | 235 | 2 | 11.14 | 2.75 | 4.06 | 0.92 | 31.1 | 7.7 | 1.02 | .261 | 3.51 | 78 | 2.87 | 73 | 6.41 | 6.9 |
| Total | 212 | 14 | 15 | .483 | 0 | 2.84 | 282 | 0 | 0 | 33 | 228.1 | 146 | 72 | 76 | 22 | 58 | 9 | 67 | 5 | 881 | 10 | 11.12 | 2.29 | 4.86 | 0.87 | 32.0 | 6.6 | 0.89 | .243 | 3.00 | 70 | 2.82 | 68 | 5.75 | 34.1 |
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