Jack Cronin career ERA
3.40Career Regular Season
Jack Cronin has a career ERA of 3.40 over 7 regular seasons.
- Best season on file: 2.70 in 1904.
Figures come from ESPN's box scores and were last read on September 23, 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. | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 1895 |  LAD | 2 | 0 | 0 | 10.80 | 5.0 | 1 | 3 | 2.60 | 2 |
| 1898 |  PIT | 4 | 2 | 2 | 3.54 | 28.0 | 9 | 8 | 1.54 | 0 |
| 1899 |  CIN | 5 | 2 | 2 | 5.49 | 41.0 | 9 | 16 | 1.76 | 0 |
| 1901 |  DET | 30 | 13 | 15 | 3.89 | 219.2 | 62 | 42 | 1.38 | 0 |
| 1902 |  DET/NYY/SF | 27 | 8 | 11 | 3.09 | 207.0 | 77 | 50 | 1.19 | 0 |
| 1903 | SF | 20 | 6 | 4 | 3.81 | 115.2 | 50 | 37 | 1.44 | 1 |
| 1904 | LAD | 40 | 12 | 23 | 2.70 | 307.0 | 110 | 79 | 1.18 | 0 |
What the columns mean: W · L · ERA · IP · K · BB · WHIP · SV