Gregory Santos

Bats R Throws R6'2" 190 lbBorn 1999 San Cristobal, D.R.Debut 2021Team SEA

Projections

Season	BF	K%	BB%	HR%	1B%	XBH%	PITCH+
2026	143	19.3	9.5	2.45	21.6	6.23	104.7
2027							105.3
2028							105.6

Projected rates are per plate appearance or batter faced; counting stats scale with projected playing time. Statcast measurements inform these projections as inputs and are reported as measurements, not projected.

Most similar through age 25

His ten closest age-25 comparables averaged 103 PITCH+ the next season; 9 of 10 played. Averages cover only the players who got a next season, which is why the played count matters.

#	Player	Through	PITCH+ then	Next season	Next PA / BF
1	Sam Tuivailala	2018	98.7	122.9	94
2	Cam Bedrosian	2017	100.3	96.3	271
3	Dan Altavilla	2018	104.0	112.1	64
4	Chris Britton	2008	105.5	did not play
5	Bruce Rondon	2016	104.6	82.0	76
6	Joe Smith	2009	103.7	105.3	170
7	Scott Elbert	2011	98.6	108.3	133
8	Jake Barrett	2017	102.5	88.1	30
9	Tommy Kahnle	2015	105.5	102.8	119
10	Ryan Pressly	2014	101.7	108.7	119

Pitching

Year	Team	W	L	ERA	G	GS	SV	IP	BF	HR	BB	SO	PITCH+
2027 proj									143				105.3
2026*									22				86.6	87.4	74.0
2025	SEA	1	1	5.14	8	0	0	7.0	36	0	8	0	72.7	99.0	71.7
2024	SEA	0	1	4.91	8	0	0	7.3	31	0	1	6	111.1	112.6	123.7
2023	CWS	2	2	3.39	60	0	5	66.3	289	2	17	66	110.4	97.4	107.9
2022	SF	0	0	4.91	2	0	0	3.7	17	0	3	2	101.4	96.4	97.7
2021	SF	0	2	22.50	3	0	0	2.0	13	3	2	3	-24.1	97.7	-26.4
Career		3	6	4.17	81	0	5	86.3	386	5	31	77	102.0		100.8

Fielding

Year	Team	Pos	G	Inn	PO	A	Fld%	Runs saved
2025	SEA	P	8	7	0	0		-0.0
2024	SEA	P	8	7	2	3	1.000	+0.5
2023	CWS	P	60	66	3	6	1.000	-0.9
2022	SF	P	2	4	0	0		-0.1
2021	SF	P	3	2	0	0		-0.0

Runs saved covers the Statcast era; for catchers it includes framing.

Minor leagues

Year	Level	Team	Side	PA / BF	Line	AVG / ERA
2026	AAA	Sacramento River Cats	Pit	77	15.2 IP, 14% K	7.11
2025	AAA	Tacoma Rainiers	Pit	26	5.0 IP, 19% K	5.40
2024	AAA	Tacoma Rainiers	Pit	28	6.1 IP, 25% K	1.48
2022	AAA	Sacramento River Cats	Pit	148	33.0 IP, 23% K	4.91
2021	AAA	Sacramento River Cats	Pit	73	15.2 IP, 21% K	5.33
2019	A	Augusta GreenJackets	Pit	143	34.2 IP, 18% K	2.89
2017	Rk	DSL Red Sox	Pit	123	30.1 IP, 20% K	0.90
2017	Rk	DSL Giants	Pit	83	18.2 IP, 20% K	1.98
2017	Rk	nan	Pit	206	49.0 IP, 20% K	1.29
2016	Rk	DSL Red Sox 2	Pit	188	41.0 IP, 13% K	4.17

Splits

Year	vs LHP	vs RHP	Home	Away
2026	0.772	0.150	0.391	0.442
2025	0.458	0.374	0.357	0.477
2024	0.486	0.147	0.285	0.318
2023	0.270	0.324	0.283	0.319
2022	0.333	0.269	0.000	0.429
2021	0.680	0.725	0.708

wOBA by split, from pitch level data, 2015 on. For pitchers the split is the batter side faced.