Dwight Siebler career ERA
3.45Career Regular Season
Dwight Siebler has a career ERA of 3.45 over 5 regular seasons.
- Best season on file: 2.79 in 1963.
- Most recent: 3.00 in 1967.
Average of 5 regular seasons, 1963 through 1967. Figures come from ESPN's box scores and were last read on November 5, 2026.