ERA
Kenny Rogers · Season-by-season history
ERA over time
- Texas Rangers · MLB
- New York Yankees · MLB
- Athletics · MLB
- Minnesota Twins · MLB
- Detroit Tigers · MLB
| Season | Team | League | ERA |
|---|---|---|---|
| 2008 |  Detroit Tigers |
MLB | 5.70 |
| 2007 | Detroit Tigers |
MLB | 4.43 |
| 2006 | Detroit Tigers |
MLB | 3.84 |
| 2005 |  Texas Rangers |
MLB | 3.46 |
| 2004 | Texas Rangers |
MLB | 4.76 |
| 2003 |  Minnesota Twins |
MLB | 4.57 |
| 2002 | Texas Rangers |
MLB | 3.84 |
| 2001 | Texas Rangers |
MLB | 6.19 |
| 2000 | Texas Rangers |
MLB | 4.55 |
| 1999 |  Athletics |
MLB | 4.30 |
| 1998 | Athletics |
MLB | 3.17 |
| 1997 |  New York Yankees |
MLB | 5.65 |
| 1996 | New York Yankees |
MLB | 4.68 |
| 1995 | Texas Rangers |
MLB | 3.38 |
| 1994 | Texas Rangers |
MLB | 4.46 |
| 1993 | Texas Rangers |
MLB | 4.10 |
| 1992 | Texas Rangers |
MLB | 3.09 |
| 1991 | Texas Rangers |
MLB | 5.42 |
| 1990 | Texas Rangers |
MLB | 3.13 |