Randy Johnson ERA in 2008
3.912008 Regular Season
Randy Johnson posted a 3.91 ERA in the 2008 regular season.
- 17th-best of Randy Johnson's 22 seasons on file; the best is 2.28 in 1997.
- Up 0.10 from 3.81 in 2007.
Average of 22 regular seasons, 1988 through 2009. Figures come from ESPN's box scores and were last read on September 22, 2026.