Mack Allison career ERA
3.17Career Regular Season
Mack Allison has a career ERA of 3.17 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. | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 1911 |  BAL | 3 | 2 | 1 | 2.05 | 26.1 | 2 | 5 | 1.10 | 0 |
| 1912 | BAL | 31 | 6 | 17 | 3.62 | 169.0 | 43 | 49 | 1.30 | 1 |
| 1913 | BAL | 11 | 1 | 3 | 2.28 | 51.1 | 12 | 13 | 1.27 | 0 |
What the columns mean: W · L · ERA · IP · K · BB · WHIP · SV
- Best season on file: 2.05 in 1911.
- Most recent: 2.28 in 1913.
Best of 3 regular seasons, 1911 through 1913. Figures come from ESPN's box scores and were last read on November 12, 2026.