ERA
Martín Pérez · Season-by-season history
ERA over time
- Texas Rangers · MLB
- Minnesota Twins · MLB
- Boston Red Sox · MLB
- Chicago White Sox · MLB
Hover over a point for its value. Only numeric values with a recorded season are charted; missing seasons are not treated as zero.
| Season | Team | League | ERA |
|---|---|---|---|
| 2025 |  Chicago White Sox |
MLB | 3.54 |
| 2023 |  Texas Rangers |
MLB | 4.45 |
| 2022 | Texas Rangers |
MLB | 2.89 |
| 2021 |  Boston Red Sox |
MLB | 4.74 |
| 2020 | Boston Red Sox |
MLB | 4.50 |
| 2019 |  Minnesota Twins |
MLB | 5.12 |
| 2018 | Texas Rangers |
MLB | 6.22 |
| 2017 | Texas Rangers |
MLB | 4.82 |
| 2016 | Texas Rangers |
MLB | 4.39 |
| 2015 | Texas Rangers |
MLB | 4.46 |
| 2014 | Texas Rangers |
MLB | 4.38 |
| 2013 | Texas Rangers |
MLB | 3.62 |
| 2012 | Texas Rangers |
MLB | 5.45 |