Jack Rowan career ERA
3.07Career Regular Season
Jack Rowan has a career ERA of 3.07 over 7 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. | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 1906 |  DET | 1 | 0 | 1 | 11.00 | 9.0 | 0 | 6 | 2.33 | 0 |
| 1908 |  CIN | 8 | 3 | 3 | 1.82 | 49.1 | 24 | 16 | 1.26 | 0 |
| 1909 | CIN | 38 | 11 | 12 | 2.79 | 225.2 | 81 | 104 | 1.28 | 0 |
| 1910 | CIN | 42 | 14 | 13 | 2.93 | 261.0 | 108 | 105 | 1.33 | 1 |
| 1911 |  CHC/PHI | 13 | 2 | 4 | 4.72 | 47.2 | 17 | 22 | 1.72 | 0 |
| 1913 | CIN | 5 | 0 | 4 | 3.00 | 39.0 | 21 | 9 | 1.18 | 0 |
| 1914 | CIN | 12 | 1 | 3 | 3.46 | 39.0 | 16 | 10 | 1.23 | 2 |
What the columns mean: W · L · ERA · IP · K · BB · WHIP · SV
- Best season on file: 1.82 in 1908.
- Most recent: 3.46 in 1914.
Figures come from ESPN's box scores and were last read on October 25, 2026.