Jack Kochanowicz career ERA
5.84Career Regular Season
Jack Kochanowicz has a career ERA of 5.84 over 3 regular seasons.
- Best season on file: 3.99 in 2024.
- Most recent: 6.19 in 2026.
Average of 3 regular seasons, 2024 through 2026. Figures come from ESPN's box scores and were last read on November 10, 2026.


