ERA+
Joba Chamberlain · Season-by-season history
ERA+ over time
- New York Yankees · MLB
- Detroit Tigers · MLB
- Cleveland Guardians · MLB
| Season | Team | League | ERA+ |
|---|---|---|---|
| 2016 |  Cleveland Guardians |
MLB | 204 |
| 2015 |  Detroit Tigers |
MLB | 99 |
| 2014 | Detroit Tigers |
MLB | 109 |
| 2013 |  New York Yankees |
MLB | 82 |
| 2012 | New York Yankees |
MLB | 98 |
| 2011 | New York Yankees |
MLB | 154 |
| 2010 | New York Yankees |
MLB | 98 |
| 2009 | New York Yankees |
MLB | 97 |
| 2008 | New York Yankees |
MLB | 170 |
| 2007 | New York Yankees |
MLB | 1221 |