Leo Mangum career ERA
5.37Career Regular Season
Leo Mangum has a career ERA of 5.37 over 7 regular seasons.
- Best season on file: 3.32 in 1933.
- Most recent: 3.86 in 1935.
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. | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 1924 |  CHW | 13 | 1 | 4 | 7.09 | 47.0 | 12 | 25 | 2.00 | 0 |
| 1925 | CHW | 7 | 1 | 0 | 7.80 | 15.0 | 6 | 6 | 2.07 | 0 |
| 1928 |  SF | 1 | 0 | 0 | 15.00 | 3.0 | 1 | 5 | 3.67 | 0 |
| 1932 |  ATL | 7 | 0 | 0 | 5.23 | 10.1 | 3 | 0 | 1.65 | 0 |
| 1933 | ATL | 25 | 4 | 3 | 3.32 | 84.0 | 28 | 11 | 1.24 | 0 |
| 1934 | ATL | 29 | 5 | 3 | 5.72 | 94.1 | 28 | 23 | 1.59 | 1 |
| 1935 | ATL | 3 | 0 | 0 | 3.86 | 4.2 | 0 | 2 | 1.71 | 0 |
What the columns mean: W · L · ERA · IP · K · BB · WHIP · SV