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Stephen Kolek

Position: Pitcher

Bats: Right • Throws: Right

6-3, 210lb (190cm, 95kg)

Team: Kansas City Royals (majors, FME)

Born: April 18, 1997 in Houston, TX us

Draft: Drafted by the Los Angeles Dodgers in the 11th round of the 2018 MLB June Amateur Draft from Texas A&M University (College Station, TX).

High School: Shepherd HS (Shepherd, TX)

School: Texas A&M University (College Station, TX)

Rookie Status: Exceeded rookie limits during 2024 season

2026 Contract Status: Pre-Arb Eligible

Service Time (01/2026): 1.099 • Arb Eligible: 2028 • Free Agent: 2031

Full Name: Stephen James Kolek

Pronunciation: \COLE-ick\

Instagram: @stephenkolek

View Player Info from the B-R Bullpen

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SUMMARY

2026

Career

WAR

0.2

1.9

ERA

4.50

4.13

54.0

213.1

150

WHIP

1.241

1.252

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Year	Age	AgeDif	Tm	Lg	Lev	Aff	W	L	W-L%	ERA	RA9	G	GS	GF	CG	SHO	SV	IP	H	R	ER	HR	BB	IBB	SO	HBP	BK	WP	BF	WHIP	H9	HR9	BB9	SO9	SO/W
2016	19	-1.6	Texas A&M	SEC	NCAA		3	0	1.000	3.30	3.60	12	3		0	0	0	30.0	28	12	11	1	13	1	21	0	0	5	127	1.367	8.4	0.3	3.9	6.3	1.62
2016	19	-0.8	Mat-Su	ALAS	Smr		4	0	1.000	2.43	3.65	7	6	0	0	0	0	37.0	32	15	10	1	10	0	32	2	2	0	149	1.135	7.8	0.2	2.4	7.8	3.20
2017	20	-0.5	Texas A&M	SEC	NCAA		4	5	.444	3.79	4.28	16	16		0	0	0	90.1	85	43	38	7	24	1	82	8	0	8	380	1.207	8.5	0.7	2.4	8.2	3.42
2018	21	0.5	Texas A&M	SEC	NCAA		5	6	.455	4.58	5.15	16	14		0	0	0	78.2	72	45	40	10	38	0	59	8	1	0	344	1.398	8.2	1.1	4.3	6.8	1.55
2018	21		2 Teams	2 Lgs	A-Rk	LAD	2	0	1.000	1.42	1.42	17	0	8	0	0	3	31.2	22	5	5	1	7	1	30	0	0	3	123	0.916	6.3	0.3	2.0	8.5	4.29
2018	21	-0.9	Great Lakes	MIDW	A	LAD	2	0	1.000	0.66	0.66	14	0	7	0	0	2	27.1	16	2	2	0	6	1	27	0	0	2	102	0.805	5.3	0.0	2.0	8.9	4.50
2018	21	-0.1	Ogden	PION	Rk	LAD	0	0		6.23	6.23	3	0	1	0	0	1	4.1	6	3	3	1	1	0	3	0	0	1	21	1.615	12.5	2.1	2.1	6.2	3.00
2019	22	0.1	Great Lakes	MIDW	A	LAD	7	8	.467	5.00	5.96	27	25	2	0	0	0	131.1	143	87	73	7	48	1	109	6	0	12	580	1.454	9.8	0.5	3.3	7.5	2.27

2021	24		3 Teams	3 Lgs	A+-A-AA	SEA	4	3	.571	6.03	6.49	24	9	4	0	0	0	59.2	61	43	40	7	25	0	67	7	0	6	270	1.441	9.2	1.1	3.8	10.1	2.68
2021	24	-0.7	Arkansas	AACN	AA	SEA	0	0		9.00	13.50	1	0	0	0	0	0	2.0	3	3	2	0	3	0	1	1	0	0	13	3.000	13.5	0.0	13.5	4.5	0.33
2021	24	0.8	Everett	HAW	A+	SEA	3	3	.500	5.93	6.26	21	9	3	0	0	0	54.2	55	38	36	7	20	0	66	6	0	6	245	1.372	9.1	1.2	3.3	10.9	3.30
2021	24	2.1	Modesto	LAW	A	SEA	1	0	1.000	6.00	6.00	2	0	1	0	0	0	3.0	3	2	2	0	2	0	0	0	0	0	12	1.667	9.0	0.0	6.0	0.0	0.00
2022	25	0.5	Arkansas	TL	AA	SEA	6	13	.316	4.51	4.95	27	27	0	0	0	0	143.2	140	79	72	10	66	0	138	18	0	6	636	1.434	8.8	0.6	4.1	8.6	2.09
2023	26		2 Teams	2 Lgs	AAA-AA	SEA	6	2	.750	3.76	4.41	49	1	9	0	0	4	69.1	52	34	29	3	32	1	76	4	0	3	290	1.212	6.8	0.4	4.2	9.9	2.38
2023	26	-1.3	Tacoma	PCL	AAA	SEA	4	2	.667	4.23	4.96	44	1	9	0	0	4	61.2	51	34	29	3	30	1	65	3	0	3	263	1.314	7.4	0.4	4.4	9.5	2.17
2023	26	1.4	Arkansas	TL	AA	SEA	2	0	1.000	0.00	0.00	5	0	0	0	0	0	7.2	1	0	0	0	2	0	11	1	0	0	27	0.391	1.2	0.0	2.3	12.9	5.50
2023-24	26	-4.0	Gigantes	DOWL	FgW		1	0	1.000	0.00	1.93	4	0	0	0	0	0	4.2	1	1	0	0	2	0	4	0	0	1	16	0.643	1.9	0.0	3.9	7.7	2.00
2024	27	-2.1	SDP	NL	Maj	SDP	3	0	1.000	5.21	5.79	42	0	12	0	0	0	46.2	59	30	27	4	12	0	39	3	0	2	211	1.521	11.4	0.8	2.3	7.5	3.25
2025	28		2 Teams	2 Lgs	AAA	KCR	2	3	.400	6.26	6.65	11	11	0	0	0	0	46.0	68	34	32	6	15	0	41	4	0	2	221	1.804	13.3	1.2	2.9	8.0	2.73
2025	28		2 Teams	2 Lgs	Maj	KCR	5	7	.417	3.51	3.91	19	19	0	1	1	0	112.2	98	49	44	9	31	1	77	7	0	0	461	1.145	7.8	0.7	2.5	6.2	2.48
2025	28	0.9	El Paso	PCL	AAA	SDP	1	0	1.000	6.00	6.33	6	6	0	0	0	0	27.0	38	19	18	4	5	0	21	2	0	0	125	1.593	12.7	1.3	1.7	7.0	4.20
2025	28	0.7	Omaha	IL	AAA	KCR	1	3	.250	6.63	7.11	5	5	0	0	0	0	19.0	30	15	14	2	10	0	20	2	0	2	96	2.105	14.2	0.9	4.7	9.5	2.00
2025	28	-1.1	SDP	NL	Maj	SDP	4	5	.444	4.18	4.52	14	14	0	1	1	0	79.2	78	40	37	8	26	1	56	7	0	0	336	1.305	8.8	0.9	2.9	6.3	2.15
2025	28	-1.2	KCR	AL	Maj	KCR	1	2	.333	1.91	2.45	5	5	0	0	0	0	33.0	20	9	7	1	5	0	21	0	0	0	125	0.758	5.5	0.3	1.4	5.7	4.20
2026	29	1.7	Omaha	IL	AAA	KCR	0	1	.000	2.76	3.86	4	4	0	0	0	0	16.1	19	7	5	1	4	0	14	0	1	0	69	1.408	10.5	0.6	2.2	7.7	3.50
2026	29	-0.2	KCR	AL	Maj	KCR	4	3	.571	4.50	5.00	10	10	0	1	1	0	54.0	55	30	27	8	12	0	34	2	0	2	224	1.241	9.2	1.3	2.0	5.7	2.83
Year	Age	AgeDif	Tm	Lg	Lev	Aff	W	L	W-L%	ERA	RA9	G	GS	GF	CG	SHO	SV	IP	H	R	ER	HR	BB	IBB	SO	HBP	BK	WP	BF	WHIP	H9	HR9	BB9	SO9	SO/W
Majors (3 seasons)					Majors		12	10	.545	4.13	4.60	71	29	12	2	2	0	213.1	212	109	98	21	55	1	150	12	0	4	896	1.252	8.9	0.9	2.3	6.3	2.73
Minors (7 seasons)					Minors		27	30	.474	4.63	5.22	159	77	23	0	0	7	498.0	505	289	256	35	197	3	475	39	1	32	2189	1.410	9.1	0.6	3.6	8.6	2.41
Foreign (1 season)					Foreign		1	0	1.000	0.00	1.93	4	0	0	0	0	0	4.2	1	1	0	0	2	0	4	0	0	1	16	0.643	1.9	0.0	3.9	7.7	2.00
College (3 seasons)					College		12	11	.522	4.03	4.52	44	33		0	0	0	199.0	185	100	89	18	75	2	162	16	1	13	851	1.307	8.4	0.8	3.4	7.3	2.16
Other (1 season)					Other		4	0	1.000	2.43	3.65	7	6	0	0	0	0	37.0	32	15	10	1	10	0	32	2	2	0	149	1.135	7.8	0.2	2.4	7.8	3.20
All Levels (10 Seasons)							56	51	.523	4.28	4.86	285	145	35	2	2	7	952.0	935	514	453	75	339	6	823	69	4	50	4101	1.338	8.8	0.7	3.2	7.8	2.43

AAA (3 seasons)					Minors		6	6	.500	4.79	5.44	59	16	9	0	0	4	124.0	138	75	66	10	49	1	120	7	1	5	553	1.508	10.0	0.7	3.6	8.7	2.45
AA (3 seasons)					Minors		8	13	.381	4.34	4.81	33	27	0	0	0	0	153.1	144	82	74	10	71	0	150	20	0	6	676	1.402	8.5	0.6	4.2	8.8	2.11
A+ (1 season)					Minors		3	3	.500	5.93	6.26	21	9	3	0	0	0	54.2	55	38	36	7	20	0	66	6	0	6	245	1.372	9.1	1.2	3.3	10.9	3.30
A (3 seasons)					Minors		10	8	.556	4.29	5.07	43	25	10	0	0	2	161.2	162	91	77	7	56	2	136	6	0	14	694	1.348	9.0	0.4	3.1	7.6	2.43
Rk (1 season)					Minors		0	0		6.23	6.23	3	0	1	0	0	1	4.1	6	3	3	1	1	0	3	0	0	1	21	1.615	12.5	2.1	2.1	6.2	3.00