Jack Kramer career ERA
4.24Career Regular Season
Jack Kramer has a career ERA of 4.24 over 12 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. | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 1939 |  BAL | 40 | 9 | 16 | 5.83 | 211.2 | 68 | 127 | 1.87 | 0 |
| 1940 | BAL | 16 | 3 | 7 | 6.26 | 64.2 | 12 | 26 | 1.73 | 0 |
| 1941 | BAL | 29 | 4 | 3 | 5.16 | 59.1 | 20 | 40 | 1.84 | 2 |
| 1943 | BAL | 3 | 0 | 0 | 8.00 | 9.0 | 4 | 8 | 2.11 | 0 |
| 1944 | BAL | 33 | 17 | 13 | 2.49 | 257.0 | 124 | 75 | 1.20 | 0 |
| 1945 | BAL | 29 | 10 | 15 | 3.36 | 193.0 | 99 | 73 | 1.36 | 2 |
| 1946 | BAL | 31 | 13 | 11 | 3.19 | 194.2 | 69 | 68 | 1.33 | 0 |
| 1947 | BAL | 33 | 11 | 16 | 4.97 | 199.1 | 77 | 89 | 1.48 | 1 |
| 1948 |  BOS | 29 | 18 | 5 | 4.35 | 205.0 | 72 | 64 | 1.45 | 0 |
| 1949 | BOS | 21 | 6 | 8 | 5.16 | 111.2 | 24 | 49 | 1.57 | 1 |
| 1950 |  SF | 35 | 3 | 6 | 3.53 | 86.2 | 27 | 39 | 1.50 | 1 |
| 1951 |  SF/NYY | 23 | 1 | 3 | 5.76 | 45.1 | 17 | 24 | 1.79 | 0 |
What the columns mean: W · L · ERA · IP · K · BB · WHIP · SV
- Best season on file: 2.49 in 1944.
- Most recent: 5.76 in 1951.
Figures come from ESPN's box scores and were last read on November 2, 2026.