Willie Mitchell career ERA
2.88Career Regular Season
Willie Mitchell has a career ERA of 2.88 over 11 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. | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 1909 |  CLE | 3 | 1 | 2 | 1.57 | 23.0 | 8 | 10 | 1.22 | 0 |
| 1910 | CLE | 35 | 12 | 8 | 2.60 | 183.2 | 102 | 55 | 1.14 | 0 |
| 1911 | CLE | 30 | 7 | 14 | 3.76 | 177.1 | 78 | 60 | 1.41 | 0 |
| 1912 | CLE | 29 | 5 | 8 | 2.80 | 163.2 | 94 | 56 | 1.25 | 1 |
| 1913 | CLE | 35 | 14 | 8 | 1.91 | 217.0 | 141 | 88 | 1.11 | 0 |
| 1914 | CLE | 39 | 12 | 17 | 3.19 | 257.0 | 179 | 124 | 1.37 | 1 |
| 1915 | CLE | 36 | 11 | 14 | 2.82 | 236.0 | 149 | 84 | 1.25 | 1 |
| 1916 |  CLE/DET | 35 | 9 | 10 | 3.78 | 171.1 | 84 | 67 | 1.41 | 1 |
| 1917 | DET | 30 | 12 | 8 | 2.19 | 185.1 | 80 | 46 | 1.18 | 0 |
| 1918 | DET | 1 | 0 | 1 | 9.00 | 4.0 | 2 | 5 | 2.00 | 0 |
| 1919 | DET | 3 | 1 | 2 | 5.27 | 13.2 | 4 | 10 | 1.61 | 0 |
What the columns mean: W · L · ERA · IP · K · BB · WHIP · SV
- Best season on file: 1.57 in 1909.
- Most recent: 5.27 in 1919.
Figures come from ESPN's box scores and were last read on October 25, 2026.