Casey Mize career ERA
4.22Career Regular Season
Casey Mize has a career ERA of 4.22 over 6 regular seasons.
| GP: Games the player appeared in, however briefly. | W: Games in which this pitcher was credited with the win. | L: Games in which this pitcher was charged with the loss. | ERA: Earned runs allowed per nine innings pitched — lower is better. Under 3.00 is excellent. | IP: Innings pitched. The decimal counts outs, so 6.2 is six innings and two more outs. | K: Batters this pitcher struck out. | BB: Times the batter reached first base on four balls. | WHIP: Walks and hits allowed per inning pitched — lower is better. Around 1.00 is elite. | SV: Games finished by protecting a narrow lead to the last out. | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 2020 |  DET | 7 | 0 | 3 | 6.99 | 28.1 | 26 | 13 | 1.48 | 0 |
| 2021 | DET | 30 | 7 | 9 | 3.71 | 150.1 | 118 | 41 | 1.14 | 0 |
| 2022 | DET | 2 | 0 | 1 | 5.40 | 10.0 | 4 | 2 | 1.50 | 0 |
| 2024 | DET | 22 | 2 | 6 | 4.49 | 102.1 | 78 | 29 | 1.47 | 0 |
| 2025 | DET | 28 | 14 | 6 | 3.87 | 149.0 | 139 | 36 | 1.27 | 0 |
| 2026 |  DET/SD | 26 | 6 | 10 | 4.32 | 131.1 | 110 | 38 | 1.23 | 0 |
What the columns mean: W · L · ERA · IP · K · BB · WHIP · SV
- Best season on file: 3.71 in 2021.
- Most recent: 4.32 in 2026.
Lowest of 6 regular seasons, 2020 through 2026. Figures come from ESPN's box scores and were last read on November 9, 2026.
