ERA+
Sergio Valdez · Season-by-season history
ERA+ over time
- Cleveland Guardians · MLB
- Boston Red Sox · MLB
Hover over a point for its value. Only numeric values with a recorded season are charted; missing seasons are not treated as zero.
| Season | Team | League | ERA+ |
|---|---|---|---|
| 1994 |  Boston Red Sox |
MLB | 63 |
| 1991 |  Cleveland Guardians |
MLB | 78 |
| 1990 | Cleveland Guardians |
MLB | 83 |