ERA+
Joe Borowski · Season-by-season history
ERA+ over time
- Baltimore Orioles · MLB
- New York Yankees · MLB
- Tampa Bay Rays · MLB
- Cleveland Guardians · 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+ |
|---|---|---|---|
| 2008 |  Cleveland Guardians |
MLB | 57 |
| 2007 | Cleveland Guardians |
MLB | 89 |
| 2005 |  Tampa Bay Rays |
MLB | 115 |
| 1998 |  New York Yankees |
MLB | 70 |
| 1997 | New York Yankees |
MLB | 58 |
| 1995 |  Baltimore Orioles |
MLB | 406 |