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Reese Olson

Position: Starting Pitcher

Bats: Right • Throws: Right

6-1, 160lb (185cm, 72kg)

Team: Detroit Tigers (majors, 60-day IL)

Born: July 31, 1999 in Gainesville, GA us

Draft: Drafted by the Milwaukee Brewers in the 13th round of the 2018 MLB June Amateur Draft from North Hall HS (Gainesville, GA).

High School: North Hall HS (Gainesville, GA)

Rookie Status: Exceeded rookie limits during 2023 season

2026 Contract Status: Pre-Arb Eligible

Service Time (01/2026): 2.123 • Arb Eligible: 2027 • Free Agent: 2030

Full Name: William Reese Olson

Instagram: @reese_olson

View Player Info from the B-R Bullpen

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SUMMARY

Career

WAR

4.5

ERA

3.60

284.2

269

WHIP

1.166

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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
2018	18	-2.5	Brewers	ARIZ	Rk	MIL	0	2	.000	5.23	6.97	4	2	0	0	0	0	10.1	11	8	6	0	4	0	6	2	0	1	45	1.452	9.6	0.0	3.5	5.2	1.50
2019	19	-2.9	Wisconsin	MIDW	A	MIL	4	7	.364	4.66	5.32	27	14	3	0	0	0	94.2	104	56	49	8	47	0	84	6	0	6	425	1.595	9.9	0.8	4.5	8.0	1.79

2021	21		3 Teams	2 Lgs	A+-AA	DET	8	5	.615	3.96	4.04	21	21	0	0	0	0	104.2	82	47	46	6	51	0	114	5	1	2	439	1.271	7.1	0.5	4.4	9.8	2.24
2021	21	-3.7	Erie	AANE	AA	DET	2	1	.667	4.74	4.74	5	5	0	0	0	0	24.2	18	13	13	1	14	0	21	0	1	2	104	1.297	6.6	0.4	5.1	7.7	1.50
2021	21	-2.3	Wisconsin	HAC	A+	MIL	5	4	.556	4.30	4.43	14	14	0	0	0	0	69.0	58	34	33	5	35	0	79	5	0	0	294	1.348	7.6	0.7	4.6	10.3	2.26
2021	21	-2.3	West Michigan	HAC	A+	DET	1	0	1.000	0.00	0.00	2	2	0	0	0	0	11.0	6	0	0	0	2	0	14	0	0	0	41	0.727	4.9	0.0	1.6	11.5	7.00
2022	22	-2.5	Erie	EL	AA	DET	8	6	.571	4.14	4.89	26	25	0	0	0	0	119.2	109	65	55	15	38	0	168	5	0	11	508	1.228	8.2	1.1	2.9	12.6	4.42
2023	23	-3.9	Toledo	IL	AAA	DET	2	3	.400	6.38	6.87	10	10	0	0	0	0	36.2	42	28	26	5	22	0	47	2	0	4	175	1.745	10.3	1.2	5.4	11.5	2.14
2023	23	-5.7	DET	AL	Maj	DET	5	7	.417	3.99	4.25	21	18	0	0	0	0	103.2	83	49	46	14	33	0	103	1	1	4	422	1.119	7.2	1.2	2.9	8.9	3.12
2024	24	-3.0	Toledo	IL	AAA	DET	0	0		0.00	0.00	2	2	0	0	0	0	5.0	2	0	0	0	2	0	6	0	0	0	18	0.800	3.6	0.0	3.6	10.8	3.00
2024	24	-5.0	DET	AL	Maj	DET	4	8	.333	3.53	4.09	22	22	0	0	0	0	112.1	100	51	44	7	33	0	101	4	0	4	465	1.184	8.0	0.6	2.6	8.1	3.06
2025	25	-2.3	Toledo	IL	AAA	DET	0	1	.000	3.48	3.48	3	3	0	0	0	0	10.1	8	4	4	2	2	0	14	1	0	0	41	0.968	7.0	1.7	1.7	12.2	7.00
2025	25	-4.2	DET	AL	Maj	DET	4	4	.500	3.15	3.15	13	13	0	0	0	0	68.2	58	24	24	5	25	2	65	5	0	2	285	1.209	7.6	0.7	3.3	8.5	2.60
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		13	19	.406	3.60	3.92	56	53	0	0	0	0	284.2	241	124	114	26	91	2	269	10	1	10	1172	1.166	7.6	0.8	2.9	8.5	2.96
Minors (7 seasons)					Minors		22	24	.478	4.39	4.91	93	77	3	0	0	0	381.1	358	208	186	36	166	0	439	21	1	24	1651	1.374	8.4	0.8	3.9	10.4	2.64
All Levels (7 Seasons)							35	43	.449	4.05	4.49	149	130	3	0	0	0	666.0	599	332	300	62	257	2	708	31	2	34	2823	1.285	8.1	0.8	3.5	9.6	2.75

AAA (3 seasons)					Minors		2	4	.333	5.19	5.54	15	15	0	0	0	0	52.0	52	32	30	7	26	0	67	3	0	4	234	1.500	9.0	1.2	4.5	11.6	2.58
AA (2 seasons)					Minors		10	7	.588	4.24	4.86	31	30	0	0	0	0	144.1	127	78	68	16	52	0	189	5	1	13	612	1.240	7.9	1.0	3.2	11.8	3.63
A+ (1 season)					Minors		6	4	.600	3.71	3.83	16	16	0	0	0	0	80.0	64	34	33	5	37	0	93	5	0	0	335	1.263	7.2	0.6	4.2	10.5	2.51
A (1 season)					Minors		4	7	.364	4.66	5.32	27	14	3	0	0	0	94.2	104	56	49	8	47	0	84	6	0	6	425	1.595	9.9	0.8	4.5	8.0	1.79
Rk (1 season)					Minors		0	2	.000	5.23	6.97	4	2	0	0	0	0	10.1	11	8	6	0	4	0	6	2	0	1	45	1.452	9.6	0.0	3.5	5.2	1.50