| Year | Team | W | L | G | IP | ERA | WHIP | K | BB | HR | K/9 | BB/9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | Chicago Cubs | 4 | 4 | 20 | 57.0 | 4.26 | 1.35 | 59 | 27 | 12 | 9.32 | 4.26 |
| 2022 |
| Chicago Cubs |
| 4 |
| 7 |
| 24 |
| 119.0 |
| 3.18 |
| 1.35 |
| 126 |
| 50 |
| 8 |
| 9.53 |
| 3.78 |
| 2023 | Chicago Cubs | 16 | 5 | 30 | 173.1 | 3.06 | 1.17 | 176 | 36 | 14 | 9.14 | 1.87 |
| 2024 | Chicago Cubs | 5 | 5 | 24 | 134.2 | 3.07 | 1.10 | 135 | 37 | 12 | 9.02 | 2.47 |
| 2025 | Chicago Cubs | 3 | 1 | 4 | 22.2 | 4.76 | 1.15 | 21 | 5 | 5 | 8.34 | 1.99 |
| Career | — | 32 | 22 | 102 | 506.2 | 3.30 | 1.21 | 517 | 155 | 51 | 9.18 | 2.75 |