Michael Petersen career ERA
3.75Career Regular Season
Michael Petersen has a career ERA of 3.75 over 3 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. | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 2024 |  LAD/MIA | 16 | 3 | 1 | 5.95 | 19.2 | 14 | 11 | 1.63 | 0 |
| 2025 | ATL/MIA | 15 | 0 | 0, led the MLB | 4.00 | 18.0 | 17 | 7 | 1.39 | 0 |
| 2026 | MIA | 65 | 4 | 4 | 3.02 | 65.2 | 81 | 29 | 1.13 | 1 |
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: 3.02 in 2026.
Figures come from ESPN's box scores and were last read on November 13, 2026.
