Justin Slaten career ERA
3.73Career Regular Season
Justin Slaten has a career ERA of 3.73 over 3 regular seasons.
- Best season on file: 2.93 in 2024.
- Most recent: 4.60 in 2026.
Average of 3 regular seasons, 2024 through 2026. Figures come from ESPN's box scores and were last read on September 23, 2026.
| 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 |  BOS | 44 | 6 | 2 | 2.93 | 55.1 | 58 | 9 | 1.01 | 2 |
| 2025 | BOS | 36 | 2 | 4 | 4.24 | 34.0 | 25 | 10 | 1.09 | 3 |
| 2026 | BOS | 36 | 2 | 4 | 4.60 | 31.1 | 39 | 8 | 1.37 | 0 |
What the columns mean: W · L · ERA · IP · K · BB · WHIP · SV