Zack Kelly ERA in 2026
3.312026 Regular Season
Zack Kelly has a 3.31 ERA in the 2026 regular season, as of Sep 22, 2026.
- Zack Kelly's best regular season for ERA in 5 seasons on file.
- Down 1.27 from 4.58 in 2025.
Lowest of 5 regular seasons, 2022 through 2026. Figures come from ESPN's box scores and were last read on September 22, 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. | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 2022 |  BOS | 13 | 1 | 0 | 3.95 | 13.2 | 11 | 4 | 1.32 | 0 |
| 2023 | BOS | 8 | 0 | 0 | 3.86 | 9.1 | 6 | 8 | 1.61 | 0 |
| 2024 | BOS | 49 | 6 | 3 | 3.97 | 56.2 | 61 | 27 | 1.25 | 0 |
| 2025 | BOS | 28 | 1 | 3 | 4.58 | 35.1 | 35 | 12 | 1.33 | 0 |
| 2026 | BOS | 17 | 0 | 2 | 3.31 | 16.1 | 14 | 7 | 1.29 | 0 |
What the columns mean: W · L · ERA · IP · K · BB · WHIP · SV
@ STL
vs DET
vs SD