Jack Kucek career ERA
5.12Career Regular Season
Jack Kucek has a career ERA of 5.12 over 7 regular seasons.
| GP: Games the player appeared in, however briefly. | W: Games in which this pitcher was credited with the win. | L: Games in which this pitcher was charged with the loss. | ERA: Earned runs allowed per nine innings pitched — lower is better. Under 3.00 is excellent. | IP: Innings pitched. The decimal counts outs, so 6.2 is six innings and two more outs. | K: Batters this pitcher struck out. | BB: Times the batter reached first base on four balls. | WHIP: Walks and hits allowed per inning pitched — lower is better. Around 1.00 is elite. | SV: Games finished by protecting a narrow lead to the last out. | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 1974 |  CHW | 9 | 1 | 4 | 5.26 | 37.2 | 25 | 21 | 1.83 | 0 |
| 1975 | CHW | 2 | 0 | 0 | 4.91 | 3.2 | 2 | 4 | 3.55 | 0 |
| 1976 | CHW | 2 | 0 | 0 | 9.64 | 4.2 | 2 | 4 | 2.79 | 0 |
| 1977 | CHW | 8 | 0 | 1 | 3.63 | 34.2 | 25 | 10 | 1.30 | 0 |
| 1978 | CHW | 10 | 2 | 3 | 3.29 | 52.0 | 30 | 27 | 1.33 | 1 |
| 1979 |  CHW/PHI | 5 | 1 | 0 | 7.20 | 5.0 | 2 | 4 | 2.00 | 0 |
| 1980 |  TOR | 23 | 3 | 8 | 6.75 | 68.0 | 35 | 41 | 1.82 | 1 |
What the columns mean: W · L · ERA · IP · K · BB · WHIP · SV
- Best season on file: 3.29 in 1978.
- Most recent: 6.75 in 1980.
Figures come from ESPN's box scores and were last read on October 25, 2026.