Ken Heintzelman career ERA
3.93Career Regular Season
Ken Heintzelman has a career ERA of 3.93 over 13 regular seasons.
- Best season on file: 2.00 in 1937.
- Most recent: 3.16 in 1952.
Average of 13 regular seasons, 1937 through 1952. Figures come from ESPN's box scores and were last read on September 22, 2026.
| 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. | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 1937 |  PIT | 1 | 1 | 0 | 2.00 | 9.0 | 4 | 3 | 1.00 | 0 |
| 1938 | PIT | 1 | 0 | 0 | 9.00 | 2.0 | 1 | 3 | 2.00 | 0 |
| 1939 | PIT | 17 | 1 | 1 | 5.05 | 35.2 | 18 | 18 | 1.49 | 0 |
| 1940 | PIT | 39 | 8 | 8 | 4.47 | 165.0 | 71 | 65 | 1.56 | 3 |
| 1941 | PIT | 35 | 11 | 11 | 3.44 | 196.0 | 81 | 83 | 1.47 | 0 |
| 1942 | PIT | 27 | 8 | 11 | 4.57 | 130.0 | 39 | 63 | 1.58 | 0 |
| 1946 | PIT | 32 | 8 | 12 | 3.77 | 157.2 | 57 | 86 | 1.59 | 1 |
| 1947 |  PIT/PHI | 26 | 7 | 10 | 4.50 | 140.0 | 57 | 52 | 1.46 | 1 |
| 1948 | PHI | 27 | 6 | 11 | 4.29 | 130.0 | 57 | 45 | 1.25 | 2 |
| 1949 | PHI | 33 | 17 | 10 | 3.02 | 250.0 | 65 | 93 | 1.33 | 0 |
| 1950 | PHI | 23 | 3 | 9 | 4.09 | 125.1 | 39 | 54 | 1.40 | 0 |
| 1951 | PHI | 35 | 6 | 12 | 4.18 | 118.1 | 55 | 53 | 1.45 | 2 |
| 1952 | PHI | 23 | 1 | 3 | 3.16 | 42.2 | 20 | 12 | 1.24 | 1 |
What the columns mean: W · L · ERA · IP · K · BB · WHIP · SV