George Kirby ERA in 2025
4.212025 Regular Season
George Kirby posted a 4.21 ERA in the 2025 regular season.
- 4th-best of George Kirby's 5 seasons on file; the best is 3.35 in 2023.
- Up 0.68 from 3.53 in 2024.
Average 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 |  SEA | 25 | 8 | 5 | 3.39 | 130.0 | 133 | 22 | 1.21 | 0 |
| 2023 | SEA | 31 | 13 | 10 | 3.35 | 190.2 | 172 | 19 | 1.04 | 0 |
| 2024 | SEA | 33 | 14 | 11 | 3.53 | 191.0 | 179 | 23 | 1.07 | 0 |
| 2025 | SEA | 23 | 10 | 8 | 4.21 | 126.0 | 137 | 29 | 1.19 | 0 |
| 2026 | SEA | 29 | 9 | 11 | 4.24 | 169.2 | 143 | 44 | 1.39 | 0 |
What the columns mean: W · L · ERA · IP · K · BB · WHIP · SV
@ HOU
vs WSH
vs BAL
@ LAA
@ CHC