ERA
Roger Clemens · Season-by-season history
ERA over time
- Boston Red Sox · MLB
- Toronto Blue Jays · 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 | 4.18 |
| 2003 | New York Yankees |
MLB | 3.91 |
| 2002 | New York Yankees |
MLB | 4.35 |
| 2001 | New York Yankees |
MLB | 3.51 |
| 2000 | New York Yankees |
MLB | 3.70 |
| 1999 | New York Yankees |
MLB | 4.60 |
| 1998 |  Toronto Blue Jays |
MLB | 2.65 |
| 1997 | Toronto Blue Jays |
MLB | 2.05 |
| 1996 |  Boston Red Sox |
MLB | 3.63 |
| 1995 | Boston Red Sox |
MLB | 4.18 |
| 1994 | Boston Red Sox |
MLB | 2.85 |
| 1993 | Boston Red Sox |
MLB | 4.46 |
| 1992 | Boston Red Sox |
MLB | 2.41 |
| 1991 | Boston Red Sox |
MLB | 2.62 |
| 1990 | Boston Red Sox |
MLB | 1.93 |