⚾ Data Hub

George Kirby

Seattle Mariners · SP

Throws: R

Age: -

Height: 6'4"

Weight: 215 lbs

4.21

ERA

10-8

W-L

26.1%

K%

137

SO

126.0

IP

23

G

SP Rankings →

ERA

4.21

xwOBA

0.305

K%

26.1%

BB%

5.5%

Hard Hit%

33.9%

CSW%

28.0%

Season-by-Season Statistics

Year	G	GS	W-L	IP	ERA	SO	K%	BB%	xAVG	xwOBA	xSLG	HH%	GB%
2025	23	23	10-8	126.0	4.21	137	26.1%	5.5%	0.252	0.305	0.392	33.9%	44.1%
2024	33	33	14-11	191.0	3.53	179	23.0%	3.0%	0.235	0.287	0.395	29.4%	41.3%
2023	31	31	13-10	190.2	3.35	172	22.7%	2.5%	0.262	0.305	0.425	32.7%	44.2%
2022	25	25	8-5	130.0	3.39	133	24.5%	4.1%	0.232	0.284	0.379	31.4%	45.5%

Pitch Arsenal - 2025

4-Seamer

Usage28.8%

K%33.3%

Whiff%30.7%

xwOBA0.293

Hard Hit%42.5%

Slider

Usage28.1%

K%25.4%

Whiff%30.9%

xwOBA0.281

Hard Hit%44.2%

Sinker

Usage26.8%

K%17.0%

Whiff%11.5%

xwOBA0.358

Hard Hit%42.6%

Curveball

Usage11.4%

K%34.4%

Whiff%39.7%

xwOBA0.247

Hard Hit%48.7%

Platoon Splits - 2025

Split	PA	xAVG	xwOBA	xSLG	K%	BB%	HR
vs LHB	284	0.252	0.311	0.395	25.7%	7.0%	9
vs RHB	240	0.263	0.315	0.423	26.7%	3.8%	6
Home	53	0.227	0.275	0.351	73.0%	17.0%	0
Road	47	0.279	0.327	0.437	64.0%	12.0%	1

Recent Game Logs - 2025

Date	Opp	IP	H	R	ER	BB	SO	Pitches
Oct 20	-	4.0	4	1	1	1	3	65
Oct 15	-	4.0	8	8	8	2	4	74
Oct 10	-	5.0	3	1	1	0	6	66
Oct 4	-	5.0	6	2	2	1	8	94
Sep 26	-	5.0	3	2	2	1	10	85
Sep 20	-	6.0	5	0	0	0	7	100
Sep 14	-	6.1	3	2	2	0	14	101
Sep 9	-	4.0	7	3	3	2	2	85
Sep 3	-	2.0	10	8	7	0	1	54
Aug 29	-	7.0	6	2	2	0	6	98
Aug 23	-	6.0	4	1	1	3	3	98
Aug 17	-	4.2	12	7	7	3	4	97
Aug 12	-	7.0	3	0	0	0	7	87
Aug 6	-	6.0	5	2	2	2	9	104
Jul 31	-	6.0	3	0	0	2	6	94
Jul 26	-	6.0	5	2	2	3	9	106
Jul 21	-	6.0	5	4	4	1	3	83
Jul 12	-	5.0	5	4	4	3	6	99
Jul 6	-	6.1	4	0	0	0	9	93
Jun 30	-	6.0	3	1	1	0	5	85