Roy Patterson career ERA
2.75Career Regular Season
Roy Patterson has a career ERA of 2.75 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. | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 1901 |  CHW | 41 | 20 | 16 | 3.37 | 312.1 | 127 | 62 | 1.30 | 0 |
| 1902 | CHW | 34 | 19 | 14 | 3.06 | 268.0 | 61 | 67 | 1.23 | 0 |
| 1903 | CHW | 34 | 15 | 15 | 2.70 | 293.0 | 89 | 69 | 1.17 | 1 |
| 1904 | CHW | 22 | 9 | 9 | 2.29 | 165.0 | 64 | 24 | 1.04 | 0 |
| 1905 | CHW | 13 | 4 | 6 | 1.83 | 88.2 | 29 | 16 | 1.00 | 0 |
| 1906 | CHW | 21 | 10 | 7 | 2.09 | 142.0 | 45 | 17 | 0.96 | 1 |
| 1907 | CHW | 19 | 4 | 6 | 2.63 | 96.0 | 27 | 18 | 1.28 | 0 |
What the columns mean: W · L · ERA · IP · K · BB · WHIP · SV
- Best season on file: 1.83 in 1905.
- Most recent: 2.63 in 1907.
Average of 7 regular seasons, 1901 through 1907. Figures come from ESPN's box scores and were last read on November 2, 2026.