Justin Martinez

Bats R Throws R6'3" 180 lbBorn 2001 Bonao, D.R.Debut 2023Team ARIContract 5 y/$18M (25-29)+30-31 opts 2026: $2,400,000

Projections

Season	BF	K%	BB%	HR%	1B%	XBH%	PITCH+
2026	157	28.3	10.8	2.35	21.5	6.20	107.3
2027							106.6
2028							107.7

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 23

His ten closest age-23 comparables averaged 97 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	Brandon League	2006	103.5	73.1	58
2	Keone Kela	2016	107.6	132.4	151
3	Chris Perez	2009	104.0	117.1	260
4	Dominic Leone	2015	100.9	61.0	131
5	Macay McBride	2006	105.2	96.3	156
6	Ryan Perry	2010	102.4	93.1	168
7	Kelvin Herrera	2013	106.8	116.5	285
8	Caleb Ferguson	2020	102.3	did not play
9	Franklin Morales	2009	104.8	88.3	140
10	Brandon Morrow	2008	107.4	97.3	313

Pitching

Year	Team	W	L	ERA	G	GS	SV	IP	BF	HR	BB	SO	PITCH+
2027 proj									157				106.6
2026*									5				107.9	100.0	107.9
2025	ARI	1	2	4.11	17	0	5	15.3	67	1	12	22	109.8	105.8	115.7
2024	ARI	5	6	2.48	64	0	8	72.7	308	2	36	91	110.8	100.8	111.6
2023	ARI	0	0	12.60	10	0	1	10.0	57	2	11	14	65.1	95.6	60.7
Career		6	8	3.77	91	0	14	98.0	432	5	59	127	104.6		105.5

Fielding

Year	Team	Pos	G	Inn	PO	A	E	Fld%	Runs saved
2025	ARI	P	17	15	1	2	1	0.750	+0.5
2024	ARI	P	64	73	1	7	1	0.889	+0.3
2023	ARI	P	10	10	0	0	1	0.000	-0.3

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

Minor leagues

Year	Level	Team	Side	PA / BF	Line	AVG / ERA
2024	AAA	Reno Aces	Pit	28	6.2 IP, 50% K	2.90
2023	AAA	Reno Aces	Pit	226	49.1 IP, 30% K	4.22
2022	AAA	Reno Aces	Pit	24	4.2 IP, 33% K	4.29
2022	A+	Hillsboro Hops	Pit	114	27.0 IP, 39% K	2.67
2022	AA	Amarillo Sod Poodles	Pit	22	4.1 IP, 36% K	4.39
2021	A	Visalia Rawhide	Pit	107	23.0 IP, 22% K	6.65
2019	Rk	DSL D-backs 2	Pit	160	35.1 IP, 30% K	3.08
2019	Rk	ACL D-backs	Pit	76	16.2 IP, 30% K	3.33
2019	Rk	nan	Pit	236	52.0 IP, 30% K	3.12
2018	Rk	DSL D-backs 2	Pit	110	20.2 IP, 14% K	8.02
2018	Rk	nan	Pit	232	44.0 IP, 13% K	7.57

Splits

Year	vs LHP	vs RHP	Home	Away
2026	0.000	0.700		0.280
2025	0.228	0.357	0.226	0.355
2024	0.297	0.267	0.258	0.296
2023	0.579	0.334	0.454	0.426

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