Jack Brewer career ERA
4.36Career Regular Season
Jack Brewer has a career ERA of 4.36 over 3 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. | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 1944 |  SF | 14 | 1 | 4 | 5.56 | 55.0 | 21 | 16 | 1.49 | 0 |
| 1945 | SF | 28 | 8 | 6 | 3.83 | 159.2 | 49 | 58 | 1.38 | 0 |
| 1946 | SF | 1 | 0 | 0 | 13.50 | 2.0 | 3 | 2 | 2.50 | 0 |
What the columns mean: W · L · ERA · IP · K · BB · WHIP · SV
- Best season on file: 3.83 in 1945.
- Most recent: 13.50 in 1946.
Figures come from ESPN's box scores and were last read on October 25, 2026.