Justin Slaten

Bats R Throws R6'4" 222 lbBorn 1997 Longview, USADebut 2024Team BOSDraft 2019 R3 #86 Texas Rangers, New MexicoContract 1 y/$791,500 (26) 2026: $791,500

Projections

Season	BF	K%	BB%	HR%	1B%	XBH%	PITCH+
2026	180	22.7	7.2	2.95	21.4	6.07	109.6
2027							107.2
2028							105.7

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 27

His ten closest age-27 comparables averaged 105 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	Jose Valverde	2005	121.9	106.0	223
2	Nick Vincent	2014	117.3	99.5	100
3	Hunter Strickland	2016	121.3	101.8	268
4	Al Alburquerque	2013	116.9	107.6	236
5	Justin Duchscherer	2005	121.7	119.2	224
6	Derrick Turnbow	2005	118.8	91.7	266
7	Darren O'Day	2010	118.2	84.3	74
8	Craig Breslow	2008	116.4	116.2	281
9	John Axford	2010	116.7	121.0	305
10	Pat Neshek	2008	121.0	did not play

Pitching

Year	Team	W	L	ERA	G	GS	SV	IP	BF	HR	BB	SO	PITCH+
2027 proj									180				107.2
2026*									137				99.7	97.9	97.6
2025	BOS	2	4	4.24	36	0	3	34.0	137	3	10	25	118.3	98.7	117.0
2024	BOS	6	2	2.93	44	0	2	55.3	224	4	9	58	118.8	97.7	116.4
Career		8	6	3.43	80	0	5	89.3	361	7	19	83	118.6		116.6

Fielding

Year	Team	Pos	G	Inn	PO	A	E	DP	Fld%	Runs saved
2025	BOS	P	36	34	3	1	0	0	1.000	-0.2
2024	BOS	P	44	55	2	2	0	0	1.000	-0.6

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

Minor leagues

Year	Level	Team	Side	PA / BF	Line	AVG / ERA
2023	AAA	Round Rock Express	Pit	32	8.1 IP, 31% K	1.11
2023	AA	Frisco RoughRiders	Pit	203	51.1 IP, 37% K	3.17
2022	AA	Frisco RoughRiders	Pit	243	50.2 IP, 26% K	6.99
2021	A+	Hickory Crawdads	Pit	366	82.1 IP, 30% K	6.03

Splits

Year	vs LHP	vs RHP	Home	Away
2026	0.317	0.348	0.336	0.329
2025	0.258	0.263	0.194	0.313
2024	0.266	0.284	0.264	0.284

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

Postseason pitching

Year	W	L	ERA	G	GS	SV	IP	H	HR	BB	SO	WHIP
2025	0	0	4.50	2	0	0	2.0	1	0	1	1	1.00
Career	0	0	4.50	2	0	0	2.0	1	0	1	1	1.00