ERA+
Jeremy Affeldt · Season-by-season history
ERA+ over time
- Kansas City Royals · 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+ |
|---|---|---|---|
| 2006 |  Kansas City Royals |
MLB | 80 |
| 2005 | Kansas City Royals |
MLB | 84 |
| 2004 | Kansas City Royals |
MLB | 97 |
| 2003 | Kansas City Royals |
MLB | 125 |
| 2002 | Kansas City Royals |
MLB | 107 |