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Gregory Santos

Position: Relief Pitcher

Bats: Right • Throws: Right

6-3, 236lb (190cm, 107kg)

Born: August 28, 1999 in San Cristobal, Dominican Republic do

Rookie Status: Exceeded rookie limits during 2023 season

2026 Contract Status: 1st-Year Arb Eligible

Service Time (01/2026): 3.055 • Arb Eligible: 2026 • Free Agent: 2029

Full Name: Gregory Omar Santos

View Player Info from the B-R Bullpen

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SUMMARY

2026

Career

WAR

-0.1

0.0

ERA

3.60

4.14

5.0

91.1

WHIP

1.600

1.434

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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	16	-3.0	Red Sox 2	DOSL	FRk	BOS	3	3	.500	4.17	5.93	16	10	2	0	0	1	41.0	40	27	19	1	26	0	25	6	2	4	188	1.610	8.8	0.2	5.7	5.5	0.96
2017	17		2 Teams	DOSL	FRk	BOS-SFG	3	0	1.000	1.29	2.02	12	12	0	0	0	0	49.0	43	11	7	2	20	0	41	1	1	8	206	1.286	7.9	0.4	3.7	7.5	2.05
2017	17	-1.7	Red Sox	DOSL	FRk	BOS	2	0	1.000	0.89	1.78	8	8	0	0	0	0	30.1	22	6	3	0	15	0	24	1	0	3	123	1.220	6.5	0.0	4.5	7.1	1.60
2017	17	-1.7	Giants	DOSL	FRk	SFG	1	0	1.000	1.93	2.41	4	4	0	0	0	0	18.2	21	5	4	2	5	0	17	0	1	5	83	1.393	10.1	1.0	2.4	8.2	3.40
2018	18	-3.3	Salem-Keizer	NORW	A-	SFG	2	5	.286	4.53	6.16	12	12	0	0	0	0	49.2	64	34	25	3	15	0	46	1	1	9	227	1.591	11.6	0.5	2.7	8.3	3.07
2019	19	-2.8	Augusta	SALL	A	SFG	1	5	.167	2.86	4.15	8	8	0	0	0	0	34.2	34	16	11	4	9	0	26	0	0	1	143	1.240	8.8	1.0	2.3	6.8	2.89

2021	21	-6.4	Sacramento	AAAW	AAA	SFG	1	1	.500	5.17	5.17	14	0	1	0	0	0	15.2	16	9	9	1	9	0	15	3	0	3	73	1.596	9.2	0.6	5.2	8.6	1.67
2021	21	-2.3	Scottsdale	AZFL	Fal		0	1	.000	4.15	4.15	10	0	7	0	0	0	13.0	13	6	6	0	5	0	12	0	0	4	53	1.385	9.0	0.0	3.5	8.3	2.40
2021	21	-7.9	SFG	NL	Maj	SFG	0	2	.000	22.50	27.00	3	0	1	0	0	0	2.0	5	6	5	3	2	0	3	0	0	0	13	3.500	22.5	13.5	9.0	13.5	1.50
2022	22		2 Teams	2 Lgs	AAA-Rk	SFG	1	2	.333	4.63	5.66	35	2	3	0	0	1	35.0	31	22	18	4	20	0	37	3	1	3	156	1.457	8.0	1.0	5.1	9.5	1.85
2022	22	-5.2	Sacramento	PCL	AAA	SFG	1	2	.333	4.91	6.00	33	0	3	0	0	1	33.0	29	22	18	4	20	0	34	3	1	2	148	1.485	7.9	1.1	5.5	9.3	1.70
2022	22	0.8	Giants Black	ACL	Rk	SFG	0	0		0.00	0.00	2	2	0	0	0	0	2.0	2	0	0	0	0	0	3	0	0	1	8	1.000	9.0	0.0	0.0	13.5
2022	22	-7.2	SFG	NL	Maj	SFG	0	0		4.91	4.91	2	0	1	0	0	0	3.2	3	2	2	0	3	0	2	0	0	0	17	1.636	7.4	0.0	7.4	4.9	0.67
2022-23	22	-7.7	Estrellas	DOWL	FgW		1	1	.500	4.09	5.73	11	0	0	0	0	0	11.0	12	7	5	1	3	0	10	1	0	2	46	1.364	9.8	0.8	2.5	8.2	3.33
2023	23	-5.7	CHW	AL	Maj	CHW	2	2	.500	3.39	3.93	60	0	17	0	0	5	66.1	69	29	25	2	17	1	66	5	1	2	289	1.296	9.4	0.3	2.3	9.0	3.88
2024	24		2 Teams	2 Lgs	AAA-A+	SEA	0	0		1.23	1.23	8	0	0	0	0	0	7.1	3	1	1	0	7	0	8	0	0	0	31	1.364	3.7	0.0	8.6	9.8	1.14
2024	24	-3.5	Tacoma	PCL	AAA	SEA	0	0		1.42	1.42	7	0	0	0	0	0	6.1	3	1	1	0	7	0	7	0	0	0	28	1.579	4.3	0.0	9.9	9.9	1.00
2024	24	0.8	Everett	NORW	A+	SEA	0	0		0.00	0.00	1	0	0	0	0	0	1.0	0	0	0	0	0	0	1	0	0	0	3	0.000	0.0	0.0	0.0	9.0
2024	24	-5.0	SEA	AL	Maj	SEA	0	1	.000	4.91	4.91	8	0	1	0	0	0	7.1	7	4	4	0	1	0	6	1	1	0	31	1.091	8.6	0.0	1.2	7.4	6.00
2025	25	-2.1	Tacoma	PCL	AAA	SEA	0	0		5.40	5.40	6	0	0	0	0	0	5.0	4	3	3	0	9	0	5	0	0	1	26	2.600	7.2	0.0	16.2	9.0	0.56
2025	25	-4.2	SEA	AL	Maj	SEA	1	1	.500	5.14	7.71	8	0	2	0	0	0	7.0	8	6	4	0	8	2	0	0	0	2	36	2.286	10.3	0.0	10.3	0.0	0.00
2025-26	25	-5.1	Estrellas	DOWL	FgW		1	0	1.000	2.70	2.70	4	0	0	0	0	0	3.1	4	1	1	0	1	0	4	0	0	0	14	1.500	10.8	0.0	2.7	10.8	4.00
2026	26		2 Teams	2 Lgs	AAA-Rk	SFG	1	1	.500	6.27	7.23	16	3	7	0	0	3	18.2	19	15	13	1	12	0	13	1	1	1	89	1.661	9.2	0.5	5.8	6.3	1.08
2026	26	-1.7	Sacramento	PCL	AAA	SFG	1	1	.500	6.89	8.04	14	1	7	0	0	3	15.2	17	14	12	1	11	0	11	1	1	1	77	1.787	9.8	0.6	6.3	6.3	1.00
2026	26	5.0	Giants	ACL	Rk	SFG	0	0		3.00	3.00	2	2	0	0	0	0	3.0	2	1	1	0	1	0	2	0	0	0	12	1.000	6.0	0.0	3.0	6.0	2.00
2026	26	-3.3	SFG	NL	Maj	SFG	0	0		3.60	9.00	3	0	1	0	0	0	5.0	5	5	2	0	3	0	1	0	1	0	22	1.600	9.0	0.0	5.4	1.8	0.33
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 (6 seasons)					Majors		3	6	.333	4.14	5.12	84	0	23	0	0	5	91.1	97	52	42	5	34	3	78	6	3	4	408	1.434	9.6	0.5	3.4	7.7	2.29
Minors (9 seasons)					Minors		12	17	.414	3.73	4.85	127	47	13	0	0	5	256.0	254	138	106	16	127	0	216	15	6	30	1139	1.488	8.9	0.6	4.5	7.6	1.70
Foreign (2 seasons)					Foreign		2	1	.667	3.77	5.02	15	0	0	0	0	0	14.1	16	8	6	1	4	0	14	1	0	2	60	1.395	10.0	0.6	2.5	8.8	3.50
Other (1 season)					Other		0	1	.000	4.15	4.15	10	0	7	0	0	0	13.0	13	6	6	0	5	0	12	0	0	4	53	1.385	9.0	0.0	3.5	8.3	2.40
All Levels (10 Seasons)							17	25	.405	3.84	4.90	236	47	43	0	0	10	374.2	380	204	160	22	170	3	320	22	9	40	1660	1.468	9.1	0.5	4.1	7.7	1.88

AAA (5 seasons)					Minors		3	4	.429	5.11	5.83	74	1	11	0	0	4	75.2	69	49	43	6	56	0	72	7	2	7	352	1.652	8.2	0.7	6.7	8.6	1.29
A+ (1 season)					Minors		0	0		0.00	0.00	1	0	0	0	0	0	1.0	0	0	0	0	0	0	1	0	0	0	3	0.000	0.0	0.0	0.0	9.0
A (1 season)					Minors		1	5	.167	2.86	4.15	8	8	0	0	0	0	34.2	34	16	11	4	9	0	26	0	0	1	143	1.240	8.8	1.0	2.3	6.8	2.89
A- (1 season)					Minors		2	5	.286	4.53	6.16	12	12	0	0	0	0	49.2	64	34	25	3	15	0	46	1	1	9	227	1.591	11.6	0.5	2.7	8.3	3.07
Rk (2 seasons)					Minors		0	0		1.80	1.80	4	4	0	0	0	0	5.0	4	1	1	0	1	0	5	0	0	1	20	1.000	7.2	0.0	1.8	9.0	5.00
FRk (2 seasons)					Minors		6	3	.667	2.60	3.80	28	22	2	0	0	1	90.0	83	38	26	3	46	0	66	7	3	12	394	1.433	8.3	0.3	4.6	6.6	1.43