George Kirby has a record of 34-27 with an ERA of 3.44, 494 strikeouts and 1 save in 92 appearances in the regular-season and playoffs in his career.
| NAME | SEASON | TM | G | W | L | W% | GS | ERA | SO | CG | SHO | SV | IP | H | ER | R | HR | BB | HBP | GF | IBB | TBF | WP | K/9 | BB/9 | K/BB | HR/9 | K% | BB% | WHIP | BABIP | RA | ERA- | FIP | FIP- | H/9 | PRAA | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | G. Kirby | 2022 |  SEA | 27 | 8 | 5 | .615 | 26 | 3.20 | 139 | 0 | 0 | 1 | 138.0 | 141 | 49 | 54 | 13 | 23 | 7 | 1 | 0 | 574 | 4 | 9.07 | 1.50 | 6.04 | 0.85 | 24.2 | 4.0 | 1.19 | .327 | 3.52 | 86 | 2.81 | 74 | 9.20 | 12.3 |
| 2 | | G. Kirby | 2023 | SEA | 31 | 12 | 10 | .545 | 31 | 3.35 | 172 | 1 | 0 | 0 | 190.2 | 179 | 71 | 74 | 22 | 19 | 6 | 0 | 1 | 757 | 1 | 8.12 | 0.90 | 9.05 | 1.04 | 22.7 | 2.5 | 1.04 | .292 | 3.49 | 83 | 3.34 | 81 | 8.45 | 16.7 |
| 3 | | G. Kirby | 2024 | SEA | 33 | 14 | 11 | .560 | 33 | 3.53 | 179 | 0 | 0 | 0 | 191.0 | 181 | 75 | 82 | 22 | 23 | 7 | 0 | 0 | 778 | 5 | 8.43 | 1.08 | 7.78 | 1.04 | 23.0 | 3.0 | 1.07 | .291 | 3.86 | 94 | 3.25 | 83 | 8.53 | 14.5 |
| 4 | | G. Kirby | 2025 | SEA | 1 | 0 | 1 | .000 | 1 | 12.27 | 4 | 0 | 0 | 0 | 3.2 | 6 | 5 | 5 | 0 | 1 | 2 | 0 | 0 | 19 | 1 | 9.82 | 2.45 | 4.00 | 0.00 | 21.1 | 5.3 | 1.91 | .500 | 12.27 | 332 | 3.33 | 86 | 14.73 | 0.2 |
| Total | 92 | 34 | 27 | .557 | 91 | 3.44 | 494 | 1 | 0 | 1 | 523.1 | 507 | 200 | 215 | 57 | 66 | 22 | 1 | 1 | 2,128 | 11 | 8.50 | 1.14 | 7.48 | 0.98 | 23.2 | 3.1 | 1.09 | .302 | 3.70 | 90 | 3.17 | 80 | 8.72 | 43.6 |
Astros 
Rangers 
Angels 
Athletics 
WSH 
MIN 
Phillies 
Mets 
Cubs 
Cardinals 
Dodgers 
Padres 
Yankees 
Rays 
Tigers 
MIL 
CLE 
CWS 
CIN 
TOR 
PIT 
ATL 
BOS 
SFG 
