ERA+
Julio Mateo · Season-by-season history
ERA+ over time
- Seattle Mariners · 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 |  Seattle Mariners |
MLB | 120 |
| 2006 | Seattle Mariners |
MLB | 106 |
| 2005 | Seattle Mariners |
MLB | 138 |
| 2004 | Seattle Mariners |
MLB | 97 |
| 2003 | Seattle Mariners |
MLB | 137 |
| 2002 | Seattle Mariners |
MLB | 101 |