Jameson Taillon has a 27-21 record with an ERA of 3.91, 330 strikeouts and 1 save in 72 appearances for the Cubs 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. Taillon | 2023 |  CHC | 30 | 8 | 10 | .444 | 29 | 4.84 | 140 | 0 | 0 | 1 | 154.1 | 156 | 83 | 96 | 27 | 41 | 5 | 1 | 0 | 655 | 2 | 8.16 | 2.39 | 3.41 | 1.57 | 21.4 | 6.3 | 1.28 | .292 | 5.60 | 114 | 4.61 | 107 | 9.10 | -5.7 |
| 2 | | J. Taillon | 2024 | CHC | 28 | 12 | 8 | .600 | 28 | 3.27 | 125 | 0 | 0 | 0 | 165.1 | 154 | 60 | 67 | 21 | 33 | 1 | 0 | 0 | 675 | 4 | 6.80 | 1.80 | 3.79 | 1.14 | 18.5 | 4.9 | 1.13 | .269 | 3.65 | 82 | 3.92 | 98 | 8.38 | 1 |
| 3 | | J. Taillon | 2025 | CHC | 14 | 7 | 3 | .700 | 14 | 3.48 | 65 | 0 | 0 | 0 | 82.2 | 65 | 32 | 33 | 16 | 16 | 0 | 0 | 0 | 325 | 0 | 7.08 | 1.74 | 4.06 | 1.74 | 20.0 | 4.9 | 0.98 | .215 | 3.59 | 89 | 4.58 | 118 | 7.08 | -6.7 |
| Total | 72 | 27 | 21 | .563 | 71 | 3.91 | 330 | 0 | 0 | 1 | 402.1 | 375 | 175 | 196 | 64 | 90 | 6 | 1 | 0 | 1,655 | 6 | 7.38 | 2.01 | 3.67 | 1.43 | 19.9 | 5.4 | 1.16 | .267 | 4.38 | 95 | 4.32 | 106 | 8.39 | -11.4 |
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