Mark Wiley career ERA
6.06Career Regular Season
Mark Wiley has a career ERA of 6.06 over 2 regular seasons.
- Best season on file: 6.05 in 1975.
- Most recent: 6.10 in 1978.
Average of 2 regular seasons, 1975 through 1978. Figures come from ESPN's box scores and were last read on October 23, 2026.