ERA+
J.A. Happ · Season-by-season history
ERA+ over time
- Toronto Blue Jays · MLB
- Seattle Mariners · MLB
- New York Yankees · MLB
- Minnesota Twins · MLB
| Season | Team | League | ERA+ |
|---|---|---|---|
| 2021 |  Minnesota Twins |
MLB | 63 |
| 2020 |  New York Yankees |
MLB | 123 |
| 2019 | New York Yankees |
MLB | 90 |
| 2018 |  Toronto Blue Jays |
MLB | 101 |
| 2017 | Toronto Blue Jays |
MLB | 127 |
| 2016 | Toronto Blue Jays |
MLB | 134 |
| 2015 |  Seattle Mariners |
MLB | 82 |
| 2014 | Toronto Blue Jays |
MLB | 90 |
| 2013 | Toronto Blue Jays |
MLB | 90 |
| 2012 | Toronto Blue Jays |
MLB | 91 |