ERA+
Michael Fulmer · Season-by-season history
ERA+ over time
- Detroit Tigers · 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 | 46 |
| 2022 |  Detroit Tigers |
MLB | 122 |
| 2021 | Detroit Tigers |
MLB | 143 |
| 2020 | Detroit Tigers |
MLB | 52 |
| 2018 | Detroit Tigers |
MLB | 96 |
| 2017 | Detroit Tigers |
MLB | 117 |
| 2016 | Detroit Tigers |
MLB | 139 |