Paul Siebert career ERA
3.77Career Regular Season
Paul Siebert has a career ERA of 3.77 over 5 regular seasons.
- Best season on file: 2.95 in 1975.
- Most recent: 5.14 in 1978.
Average of 5 regular seasons, 1974 through 1978. Figures come from ESPN's box scores and were last read on November 2, 2026.