Wayne Simpson career ERA
4.37Career Regular Season
Wayne Simpson has a career ERA of 4.37 over 6 regular seasons.
- Best season on file: 3.02 in 1970.
- Most recent: 5.83 in 1977.
Average of 6 regular seasons, 1970 through 1977. Figures come from ESPN's box scores and were last read on October 31, 2026.