ERA+
Ron Villone · Season-by-season history
ERA+ over time
- Seattle Mariners · MLB
- Milwaukee Brewers · MLB
- Cleveland Guardians · MLB
- New York Yankees · 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+ |
|---|---|---|---|
| 2007 |  New York Yankees |
MLB | 107 |
| 2006 | New York Yankees |
MLB | 90 |
| 2005 |  Seattle Mariners |
MLB | 172 |
| 2004 | Seattle Mariners |
MLB | 111 |
| 1998 |  Cleveland Guardians |
MLB | 80 |
| 1997 |  Milwaukee Brewers |
MLB | 137 |
| 1996 | Milwaukee Brewers |
MLB | 160 |
| 1995 | Seattle Mariners |
MLB | 61 |