ERA+
Jason Johnson · Season-by-season history
ERA+ over time
- Tampa Bay Rays · MLB
- Baltimore Orioles · MLB
- Detroit Tigers · MLB
- Cleveland Guardians · MLB
| Season | Team | League | ERA+ |
|---|---|---|---|
| 2006 |  Cleveland Guardians |
MLB | 75 |
| 2005 |  Detroit Tigers |
MLB | 93 |
| 2004 | Detroit Tigers |
MLB | 87 |
| 2003 |  Baltimore Orioles |
MLB | 108 |
| 2002 | Baltimore Orioles |
MLB | 94 |
| 2001 | Baltimore Orioles |
MLB | 105 |
| 2000 | Baltimore Orioles |
MLB | 67 |
| 1999 | Baltimore Orioles |
MLB | 85 |
| 1998 |  Tampa Bay Rays |
MLB | 84 |