ERA+
Cooper Criswell · Season-by-season history
ERA+ over time
- Los Angeles Angels · MLB
- Tampa Bay Rays · MLB
- Boston Red Sox · MLB
Hover over a bar for its value. Only numeric values with a recorded season are charted; missing seasons are not treated as zero.
| Season | Team | League | ERA+ |
|---|---|---|---|
| 2025 |  Boston Red Sox |
MLB | 117 |
| 2024 | Boston Red Sox |
MLB | 102 |
| 2023 |  Tampa Bay Rays |
MLB | 74 |
| 2022 | Tampa Bay Rays |
MLB | 152 |
| 2021 |  Los Angeles Angels |
MLB | 28 |