ERA+
Erik Swanson · Season-by-season history
ERA+ over time
- Seattle Mariners · MLB
- Toronto Blue Jays · 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 |  Toronto Blue Jays |
MLB | 30 |
| 2024 | Toronto Blue Jays |
MLB | 82 |
| 2023 | Toronto Blue Jays |
MLB | 145 |
| 2022 |  Seattle Mariners |
MLB | 222 |
| 2021 | Seattle Mariners |
MLB | 125 |
| 2020 | Seattle Mariners |
MLB | 34 |
| 2019 | Seattle Mariners |
MLB | 76 |