ERA+
Rafael Montero · Season-by-season history
ERA+ over time
- Texas Rangers · MLB
- Seattle Mariners · MLB
- Houston Astros · MLB
| Season | Team | League | ERA+ |
|---|---|---|---|
| 2025 |  Houston Astros |
MLB | 101 |
| 2024 | Houston Astros |
MLB | 86 |
| 2023 | Houston Astros |
MLB | 84 |
| 2022 | Houston Astros |
MLB | 161 |
| 2021 |  Seattle Mariners |
MLB | 57 |
| 2020 |  Texas Rangers |
MLB | 112 |
| 2019 | Texas Rangers |
MLB | 210 |