Gary Kroll career ERA
4.24Career Regular Season
Gary Kroll has a career ERA of 4.24 over 4 regular seasons.
- Best season on file: 3.80 in 1966.
- Most recent: 4.13 in 1969.
Average of 4 regular seasons, 1964 through 1969. Figures come from ESPN's box scores and were last read on October 27, 2026.