Will Klein career ERA
4.20Career Regular Season
Will Klein has a career ERA of 4.20 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 |  KC/ATH | 8 | 1 | 0, led the MLB | 11.05 | 7.1 | 7 | 6 | 2.45 | 0 |
| 2025 |  LAD | 14 | 1 | 1 | 2.35 | 15.1 | 21 | 10 | 1.57 | 0 |
| 2026 | LAD | 36 | 3 | 4 | 3.67 | 41.2 | 49 | 21 | 1.56 | 2 |
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: 2.35 in 2025.
- Most recent: 3.67 in 2026.
Figures come from ESPN's box scores and were last read on November 7, 2026.
