ERA+
Matt Thornton · Season-by-season history
ERA+ over time
- Seattle Mariners · MLB
- Chicago White Sox · MLB
- New York Yankees · MLB
| Season | Team | League | ERA+ |
|---|---|---|---|
| 2014 |  New York Yankees |
MLB | 152 |
| 2013 |  Chicago White Sox |
MLB | 110 |
| 2012 | Chicago White Sox |
MLB | 123 |
| 2011 | Chicago White Sox |
MLB | 131 |
| 2010 | Chicago White Sox |
MLB | 161 |
| 2009 | Chicago White Sox |
MLB | 172 |
| 2008 | Chicago White Sox |
MLB | 172 |
| 2007 | Chicago White Sox |
MLB | 99 |
| 2006 | Chicago White Sox |
MLB | 143 |
| 2005 |  Seattle Mariners |
MLB | 81 |
| 2004 | Seattle Mariners |
MLB | 110 |