Ryan Rolison career ERA
4.70Career Regular Season
Ryan Rolison has a career ERA of 4.70 over 2 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. | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 2025 |  COL | 31 | 1 | 0, led the MLB | 7.02 | 42.1 | 25 | 20 | 1.77 | 0 |
| 2026 |  CHC | 60 | 9 | 2 | 3.14 | 63.0 | 55 | 28 | 1.29 | 3 |
What the columns mean: W · L · ERA · IP · K · BB · WHIP · SV
Bold marks the best figure in the MLB that season, among players with at least 30 games.
- Best season on file: 3.14 in 2026.
Average of 2 regular seasons, 2025 through 2026. Figures come from ESPN's box scores and were last read on November 12, 2026.
