Justin Speier career ERA
4.11Career Regular Season
Justin Speier has a career ERA of 4.11 over 12 regular seasons.
- Best season on file: 2.57 in 2005.
- Most recent: 5.18 in 2009.
Average of 12 regular seasons, 1998 through 2009. Figures come from ESPN's box scores and were last read on September 21, 2026.