⚾ Data Hub

Stephen Kolek

Kansas City Royals · SP

Throws: R

Age: -

Height: 6'3"

Weight: 210 lbs

3.51

ERA

5-7

W-L

16.7%

K%

77

SO

112.2

IP

19

G

SP Rankings →

ERA

3.51

xwOBA

0.320

K%

16.7%

BB%

6.7%

Hard Hit%

35.3%

CSW%

24.8%

Season-by-Season Statistics

Year	G	GS	W-L	IP	ERA	SO	K%	BB%	xAVG	xwOBA	xSLG	HH%	GB%
2025	19	19	5-7	112.2	3.51	77	16.7%	6.7%	0.263	0.320	0.400	35.3%	51.4%
2024	42	0	3-0	46.2	5.21	39	18.5%	5.7%	0.280	0.326	0.407	23.7%	55.9%

Pitch Arsenal - 2025

4-Seamer

Usage25.6%

K%22.7%

Whiff%15.4%

xwOBA0.350

Hard Hit%51.4%

Sinker

Usage24.1%

K%9.8%

Whiff%13.1%

xwOBA0.328

Hard Hit%51.5%

Slider

Usage16.6%

K%18.1%

Whiff%21.3%

xwOBA0.312

Hard Hit%49.3%

Cutter

Usage15.2%

K%13.6%

Whiff%19.0%

xwOBA0.322

Hard Hit%44.0%

Changeup

Usage11.6%

K%26.2%

Whiff%24.7%

xwOBA0.204

Hard Hit%41.9%

Sweeper

Usage6.8%

K%14.8%

Whiff%18.4%

xwOBA0.372

Hard Hit%34.8%

Platoon Splits - 2025

Split	PA	xAVG	xwOBA	xSLG	K%	BB%	HR
vs LHB	250	0.274	0.352	0.456	19.2%	8.8%	7
vs RHB	210	0.261	0.297	0.365	13.8%	3.8%	2
Home	36	0.255	0.291	0.389	29.0%	7.0%	1
Road	64	0.223	0.274	0.312	48.0%	23.0%	1

Recent Game Logs - 2025

Date	Opp	IP	H	R	ER	BB	SO	Pitches
Sep 24	-	6.0	5	3	2	2	2	94
Sep 18	-	7.1	2	2	1	1	8	99
Sep 11	-	6.2	3	1	1	1	4	97
Sep 6	-	7.0	6	2	2	1	4	95
Aug 30	-	6.0	4	1	1	0	3	71
Jul 27	-	6.0	4	2	2	3	2	98
Jul 22	-	5.2	8	3	3	1	5	80
Jul 5	-	5.1	9	6	6	1	2	83
Jun 29	-	5.2	3	1	1	1	5	71
Jun 23	-	4.1	5	5	4	1	5	80
Jun 18	-	6.1	6	3	3	1	3	97
Jun 13	-	4.1	7	5	4	2	5	82
Jun 7	-	5.2	3	0	0	4	2	88
Jun 2	-	5.2	3	0	0	2	3	98
May 27	-	5.1	6	6	6	2	3	93
May 22	-	6.0	7	4	3	3	6	92
May 16	-	5.0	8	5	5	1	4	83
May 10	-	9.0	5	0	0	2	7	104
May 4	-	5.1	4	0	0	2	4	84