Jack Flaherty has a 65-62 record with an ERA of 3.87 and 1,188 strikeouts in 203 appearances in the regular-season and playoffs 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. Flaherty | 2017 |  STL | 6 | 0 | 2 | .000 | 5 | 6.33 | 20 | 0 | 0 | 0 | 21.1 | 23 | 15 | 15 | 4 | 10 | 1 | 0 | 1 | 94 | 0 | 8.44 | 4.22 | 2.00 | 1.69 | 21.3 | 10.6 | 1.55 | .322 | 6.33 | 152 | 5.26 | 124 | 9.70 | -2.5 |
| 2 | | J. Flaherty | 2018 | STL | 28 | 8 | 9 | .471 | 28 | 3.34 | 182 | 0 | 0 | 0 | 151.0 | 108 | 56 | 59 | 20 | 59 | 11 | 0 | 3 | 615 | 6 | 10.85 | 3.52 | 3.08 | 1.19 | 29.6 | 9.6 | 1.11 | .257 | 3.52 | 86 | 3.86 | 97 | 6.44 | 2 |
| 3 | | J. Flaherty | 2019 | STL | 36 | 12 | 10 | .545 | 36 | 2.87 | 253 | 0 | 0 | 0 | 213.1 | 152 | 68 | 70 | 27 | 59 | 8 | 0 | 2 | 844 | 9 | 10.67 | 2.49 | 4.29 | 1.14 | 30.0 | 7.0 | 0.99 | .252 | 2.95 | 61 | 3.18 | 74 | 6.41 | 18.6 |
| 4 | | J. Flaherty | 2020 | STL | 10 | 4 | 4 | .500 | 10 | 4.47 | 57 | 0 | 0 | 0 | 46.1 | 39 | 23 | 23 | 6 | 18 | 3 | 0 | 0 | 196 | 1 | 11.07 | 3.50 | 3.17 | 1.17 | 29.1 | 9.2 | 1.23 | .295 | 4.47 | 100 | 3.57 | 83 | 7.58 | 0.9 |
| 5 | | J. Flaherty | 2021 | STL | 17 | 9 | 2 | .818 | 15 | 3.22 | 85 | 0 | 0 | 0 | 78.1 | 57 | 28 | 35 | 12 | 26 | 6 | 0 | 1 | 322 | 4 | 9.77 | 2.99 | 3.27 | 1.38 | 26.4 | 8.1 | 1.06 | .233 | 4.02 | 79 | 4.21 | 101 | 6.55 | -0.5 |
| 6 | | J. Flaherty | 2022 | STL | 9 | 2 | 1 | .667 | 8 | 4.25 | 33 | 0 | 0 | 0 | 36.0 | 36 | 17 | 18 | 4 | 22 | 5 | 0 | 0 | 167 | 0 | 8.25 | 5.50 | 1.50 | 1.00 | 19.8 | 13.2 | 1.61 | .311 | 4.50 | 108 | 4.97 | 127 | 9.00 | -4.4 |
| 7 |  | J. Flaherty | 2023 | TOT | 30 | 8 | 9 | .471 | 27 | 4.98 | 149 | 0 | 0 | 0 | 146.1 | 164 | 81 | 84 | 17 | 69 | 12 | 0 | 2 | 660 | 8 | 9.16 | 4.24 | 2.16 | 1.05 | 22.6 | 10.5 | 1.59 | .356 | 5.17 | 116 | 4.29 | 101 | 10.09 | -1.5 |
| 8 |  | J. Flaherty | 2024 | TOT | 33 | 14 | 9 | .609 | 33 | 3.67 | 209 | 0 | 0 | 0 | 184.0 | 159 | 75 | 79 | 30 | 47 | 5 | 0 | 0 | 747 | 6 | 10.22 | 2.30 | 4.45 | 1.47 | 28.0 | 6.3 | 1.12 | .283 | 3.86 | 70 | 3.05 | 75 | 7.78 | 11.1 |
| 9 |  | J. Flaherty | 2025 |  DET | 34 | 8 | 16 | .333 | 33 | 4.58 | 200 | 0 | 0 | 0 | 171.0 | 154 | 87 | 90 | 24 | 67 | 5 | 0 | 1 | 722 | 4 | 10.53 | 3.53 | 2.99 | 1.26 | 27.7 | 9.3 | 1.29 | .305 | 4.74 | 108 | 3.62 | 88 | 8.11 | 5.1 |
| Total | 203 | 65 | 62 | .512 | 195 | 3.87 | 1,188 | 0 | 0 | 0 | 1047.2 | 892 | 450 | 473 | 144 | 377 | 56 | 0 | 10 | 4,367 | 38 | 10.21 | 3.24 | 3.15 | 1.24 | 27.2 | 8.6 | 1.21 | .287 | 4.06 | 88 | 3.68 | 89 | 7.66 | 28.8 |
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Team Rankings
HR
148
29th
R
689
19th
SO
1,209
29th
ERA
4.29
21st
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