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George Kirby

Pitcher · Seattle Mariners. 2026 season stats with ranks among qualified players.

Pitching, 2026

George Kirby posted a 4.33 ERA and a 3.90 FIP with a 19.9% strikeout rate over 174.7 innings in 2026.

Stat	2026	Percentile
Innings pitched	174.7	–
Starts	30	–
ERA	4.33	17th percentile
FIP	3.90	46th percentile
xFIP	3.97	53rd percentile
Strikeout %	19.9%	25th percentile
Walk %	6.3%	86th percentile
K-BB%	13.6%	46th percentile
Home runs per 9	1.13	33rd percentile
Whiff %	21.2%	28th percentile
Fastball velocity	96.8	–

Percentile compares each number with the 182 qualified pitchers in 2026 (100th = best, including for stats where lower is better).

Recent seasons

Season	IP	ERA	FIP	K%	BB%
2026	174.7	4.33	3.90	19.9%	6.3%
2025	126.0	4.21	3.37	26.1%	5.5%
2024	191.0	3.53	3.26	22.9%	2.9%

Seattle Mariners teammates

About these numbers

Season totals and rates from every regular-season game. wRC+ is runs created adjusted for park and league (100 is average); FIP and xFIP estimate a pitcher's run prevention from strikeouts, walks and home runs; K-BB% is strikeout rate minus walk rate.

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