Justin Slaten Stats: Statcast, Visuals & Advanced Metrics

P | Boston Red Sox

Bats/Throws: R/R | 6' 4" 222 lbs | Age: 28

Draft: 2019 | Rd. 3, No. 86, Texas Rangers | New Mexico

	W	L	ERA	G	SV	IP	SO	WHIP
2024	6	2	2.93	44	2	55.1	58	1.01
2025	2	4	4.24	36	3	34	25	1.09
2026	1	4	4.61	31	0	27.1	35	1.35
3 Seasons	9	10	3.70	111	5	116.2	118	1.11

	G	W-L	ERA	IP	SO	WHIP
2024	44	6-2	2.93	55.1	58	1.01
2025	36	2-4	4.24	34	25	1.09
2026	31	1-4	4.61	27.1	35	1.35
3 Seasons	111	9-10	3.70	116.2	118	1.11

Player Apps

Random Video illustrator Visual Report 3D Pitches Player Similarity Swing Take Profile

Pitch Usage

Statcast Standard Splits Game Logs

Standard MLB Batting Statistics

No MLB Hitting Statistics.

Standard MLB Pitching Statistics

Season	Tm	LG	BF	W	L	ERA	G	SV	IP	H	R	ER	HR	BB	SO	WHIP
2024	BOS	AL	224	6	2	2.93	44	2	55.1	47	21	18	4	9	58	1.01
2025	BOS	AL	137	2	4	4.24	36	3	34.0	27	19	16	3	10	25	1.09
2026	BOS	AL	119	1	4	4.61	31	0	27.1	31	17	14	4	6	35	1.35
3 Seasons	BOS	AL	480	9	10	3.70	111	5	116.2	105	57	48	11	25	118	1.11

*: All Star Season, Rankings AL/NL: Top 5 10 15 20, Click for Chart.

Standard MLB Fielding Statistics

Season	Tm	LG	POS	G	INN	TC	PO	A	FPCT%
2024	BOS	AL	P	44	55.1	4	2	2	1.000
2025	BOS	AL	P	36	34.0	4	3	1	1.000
2026	BOS	AL	P	31	27.1	3	2	1	1.000
3 Seasons	BOS	AL	P	111	116.2	11	7	4	1.000

Standard Minor League Batting Statistics

No Minor League Hitting Statistics.

Standard Minor League Pitching Statistics

Season	Tm	LG	L	W	L	ERA	G	GS	SV	IP	H	R	ER	HR	BB	SO	WHIP
2019	2 Teams		Minors	0	2	6.06	11	10	0	16.1	21	13	11	2	7	22	1.71
2019	AZL Rangers	AZL	ROK	0	0	0.00	1	0	0	1.0	0	0	0	0	0	1	0.00
2019	Spokane Indians	NWL	A(Short)	0	2	6.46	10	10	0	15.1	21	13	11	2	7	21	1.83
2021	Hickory Crawdads	A+ E	A+	4	8	6.01	20	19	0	82.1	93	60	55	17	31	110	1.51
2022	2 Teams		Minors	1	6	6.79	26	5	0	51.2	49	41	39	6	48	66	1.88
2022	ACL Rangers	ACL	ROK	0	0	0.00	1	0	0	1.0	0	0	0	0	0	2	0.00
2022	Frisco RoughRiders	TEX	AA	1	6	6.93	25	5	0	50.2	49	41	39	6	48	64	1.91
2023	2 Teams		Minors	5	3	2.87	40	1	2	59.2	44	22	19	10	20	86	1.07
2023	Frisco RoughRiders	TEX	AA	4	3	3.16	35	1	2	51.1	41	21	18	9	16	76	1.11
2023	Round Rock Express	PCL	AAA	1	0	1.08	5	0	0	8.1	3	1	1	1	4	10	0.84
2024	Portland Sea Dogs	EAS	AA	0	0	27.00	1	0	0	0.1	1	1	1	0	1	1	6.00
2025	Worcester Red Sox	INT	AAA	1	0	0.00	3	0	0	3.0	1	1	0	0	1	5	0.67
2026	2 Teams		Minors	0	0	0.00	2	2	0	2.0	2	0	0	0	1	4	1.50
2026	Portland Sea Dogs	EAS	AA	0	0	0.00	1	1	0	1.0	1	0	0	0	0	2	1.00
2026	Worcester Red Sox	INT	AAA	0	0	0.00	1	1	0	1.0	1	0	0	0	1	2	2.00
	ACL Rangers	ACL	ROK	0	0	0.00	2	0	0	2.0	0	0	0	0	0	3	0.00
	2 Teams		AAA	2	0	0.73	9	1	0	12.1	5	2	1	1	6	17	0.89
	2 Teams		AA	5	9	5.05	62	7	2	103.1	92	63	58	15	65	143	1.52
	Hickory Crawdads	CAR	A+	4	8	6.01	20	19	0	82.1	93	60	55	17	31	110	1.51
	Spokane Indians	NWL	A(Short)	0	2	6.46	10	10	0	15.1	21	13	11	2	7	21	1.83
Career Minors	7 Teams			11	19	5.22	103	37	2	215.1	211	138	125	35	109	294	1.49

Standard Minor League Fielding Statistics

Season	Tm	LG	L	POS	G	GS	INN	TC	PO	A	DP	FPCT%
2019	2 Teams		Minors	P	11	10	16.1	2	0	2	0	1.000
2019	AZL Rangers	AZL	ROK	P	1	0	1.0	0	0	0	0	.000
2019	Spokane Indians	NWL	A(Short)	P	10	10	15.1	2	0	2	0	1.000
2021	Hickory Crawdads	A+ E	A+	P	20	19	82.1	5	1	4	0	1.000
2022	2 Teams		Minors	P	26	5	51.2	11	2	9	0	1.000
2022	ACL Rangers	ACL	ROK	P	1	0	1.0	0	0	0	0	.000
2022	Frisco RoughRiders	TEX	AA	P	25	5	50.2	11	2	9	0	1.000
2023	2 Teams		Minors	P	40	1	59.2	12	6	6	3	1.000
2023	Frisco RoughRiders	TEX	AA	P	35	1	51.1	12	6	6	3	1.000
2023	Round Rock Express	PCL	AAA	P	5	0	8.1	0	0	0	0	.000
2024	Portland Sea Dogs	EAS	AA	P	1	0	0.1	0	0	0	0	.000
2025	Worcester Red Sox	INT	AAA	P	3	0	3.0	0	0	0	0	.000
2026	2 Teams		Minors	P	2	2	2.0	0	0	0	0	.000
2026	Portland Sea Dogs	EAS	AA	P	1	1	1.0	0	0	0	0	.000
2026	Worcester Red Sox	INT	AAA	P	1	1	1.0	0	0	0	0	.000
	ACL Rangers	ACL	ROK	P	2	0	2.0	0	0	0	0	.000
	2 Teams		AAA	P	9	1	12.1	0	0	0	0	.000
	2 Teams		AA	P	62	7	103.1	23	8	15	3	1.000
	Hickory Crawdads	CAR	A+	P	20	19	82.1	5	1	4	0	1.000
	Spokane Indians	NWL	A(Short)	P	10	10	15.1	2	0	2	0	1.000
Career Minors	7 Teams			P	103	37	215.1	30	9	21	3	1.000

Awards

Red Sox Fireman's Award

Year	Team
2024

SAL Pitcher of the Week

Week	Team
07/11/2021

Transactions

Team	Date	Transaction
	05/09/2026	Boston Red Sox activated RHP Justin Slaten from the 15-day injured list.
	05/06/2026	Boston Red Sox sent RHP Justin Slaten on a rehab assignment to Worcester Red Sox.
	05/06/2026	Boston Red Sox sent RHP Justin Slaten on a rehab assignment to Worcester Red Sox.
	05/03/2026	Boston Red Sox sent RHP Justin Slaten on a rehab assignment to Portland Sea Dogs.
	08/28/2025	Boston Red Sox activated RHP Justin Slaten from the 60-day injured list.
	08/19/2025	Boston Red Sox sent RHP Justin Slaten on a rehab assignment to Worcester Red Sox.
	08/19/2025	Boston Red Sox sent RHP Justin Slaten on a rehab assignment to Worcester Red Sox.
	06/28/2025	Boston Red Sox transferred RHP Justin Slaten from the 15-day injured list to the 60-day injured list.
	06/01/2025	Boston Red Sox placed RHP Justin Slaten on the 15-day injured list retroactive to May 29, 2025. Right shoulder inflammation.
	04/16/2025	RHP Justin Slaten changed number to 63.
	04/15/2025	RHP Justin Slaten changed number to 42.
	08/26/2024	Boston Red Sox activated RHP Justin Slaten from the 15-day injured list.
	08/23/2024	Boston Red Sox sent RHP Justin Slaten on a rehab assignment to Portland Sea Dogs.
	07/12/2024	Boston Red Sox placed RHP Justin Slaten on the 15-day injured list retroactive to July 9, 2024. Right elbow inflammation.
	12/06/2023	New York Mets drafted RHP Justin Slaten.
	12/06/2023	New York Mets traded RHP Justin Slaten to Boston Red Sox for LHP Ryan Ammons.
	09/22/2023	Surprise Saguaros activated RHP Justin Slaten.
	09/12/2023	RHP Justin Slaten assigned to Round Rock Express from Frisco RoughRiders.
	06/02/2023	Frisco RoughRiders activated RHP Justin Slaten from the 7-day injured list.
	05/02/2023	Frisco RoughRiders placed RHP Justin Slaten on the 7-day injured list.
	10/05/2022	Frisco RoughRiders activated RHP Justin Slaten from the 7-day injured list.
	07/12/2022	Frisco RoughRiders placed RHP Justin Slaten on the 7-day injured list.
	07/12/2022	Frisco RoughRiders activated RHP Justin Slaten.
	07/08/2022	Frisco RoughRiders sent RHP Justin Slaten on a rehab assignment to ACL Rangers.
	06/23/2022	Frisco RoughRiders placed RHP Justin Slaten on the 7-day injured list.
	03/31/2022	RHP Justin Slaten assigned to Frisco RoughRiders from Hickory Crawdads.
	10/08/2021	Hickory Crawdads activated RHP Justin Slaten.
	09/15/2021	Hickory Crawdads transferred RHP Justin Slaten to the Development List.
	05/04/2021	RHP Justin Slaten assigned to Hickory Crawdads from Rangers Organization.
	02/12/2021	RHP Justin Slaten assigned to Rangers Organization.
	02/12/2021	RHP Justin Slaten assigned to Rangers Organization.
	06/24/2019	RHP Justin Slaten assigned to Spokane Indians from AZL Rangers.
	06/24/2019	RHP Justin Slaten assigned to Spokane Indians.
	06/17/2019	RHP Justin Slaten assigned to AZL Rangers.
	06/17/2019	RHP Justin Slaten assigned to AZL Rangers.
	06/12/2019	Texas Rangers signed RHP Justin Slaten.

Platoon Splits

Team	L	Type	W	L	ERA	G	GS	SV	IP	BF	H	R	ER	HR	BB	SO	WHIP	AVG	OBP	SLG	OPS
Boston Red Sox	MLB	vs Left				30			15.1	61	14			2	1	21	0.98	.237	.250	.424	.674
Boston Red Sox	MLB	vs Right				28			12.0	58	17			2	5	14	1.83	.327	.386	.442	.828

Monthly Splits

Team	L	Type	W	L	ERA	G	IP	BF	H	R	ER	HR	BB	SO	WHIP	AVG	OBP	SLG	OPS
Boston Red Sox	MLB	March	0	1	0.00	2	1.1	7	1	1	0	0	2	3	2.25	.200	.429	.200	.629
Boston Red Sox	MLB	April	0	0	0.00	2	2.0	7	1	0	0	0	0	2	0.50	.143	.143	.143	.286
Boston Red Sox	MLB	May	0	1	5.40	7	6.2	29	7	4	4	2	2	9	1.35	.259	.310	.519	.829
Boston Red Sox	MLB	June	1	2	9.00	11	9.0	44	17	11	9	2	1	11	2.00	.415	.429	.634	1.063
Boston Red Sox	MLB	July	0	0	1.08	9	8.1	32	5	1	1	0	1	10	0.72	.161	.188	.194	.382
Boston Red Sox	MLB	Pre All-Star	1	4	5.64	26	22.1	101	29	17	14	4	6	31	1.57	.312	.354	.495	.849
Boston Red Sox	MLB	Post All-Star	0	0	0.00	5	5.0	18	2	0	0	0	0	4	0.40	.111	.111	.111	.222

Baserunner Splits

Team	L	Type	G	IP	BF	H	HR	BB	SO	WHIP	AVG	OBP	SLG	OPS
Boston Red Sox	MLB	Bases Empty	22	13.1	58	14	1	3	11	1.28	.255	.293	.327	.620
Boston Red Sox	MLB	Bases Loaded	2	0.2	2	0	0	0	2	0.00	.000	.000	.000	.000
Boston Red Sox	MLB	Runner at 1st	17	6.1	26	9	3	0	9	1.42	.346	.346	.769	1.115
Boston Red Sox	MLB	Runners at 1st & 2nd	4	1.1	7	2	0	1	4	2.25	.333	.429	.333	.762
Boston Red Sox	MLB	Runners at 1st & 3rd	5	2.0	8	2	0	0	3	1.00	.286	.286	.571	.857
Boston Red Sox	MLB	Runner at 2nd	8	2.1	13	4	0	2	3	2.57	.400	.500	.400	.900
Boston Red Sox	MLB	Runners at 2nd & 3rd	3	1.0	3	0	0	0	2	0.00	.000	.000	.000	.000
Boston Red Sox	MLB	Runner at 3rd	2	0.1	2	0	0	0	1	0.00	.000	.000	.000	.000
Boston Red Sox	MLB	Scoring Position	15	7.2	35	8	0	3	15	1.43	.267	.333	.333	.666

Game Type Splits

Team	L	Type	W	L	ERA	G	GS	SV	IP	BF	H	R	ER	HR	BB	SO	WHIP	AVG	OBP	SLG	OPS
Boston Red Sox	MLB	Home Games	1	1	3.46	14	0	0	13.0	54	14	7	5	2	1	15	1.15	.269	.283	.423	.706
Boston Red Sox	MLB	Away Games	0	3	5.65	17	0	0	14.1	65	17	10	9	2	5	20	1.53	.288	.344	.441	.785
Boston Red Sox	MLB	Day Games	0	3	4.91	16	0	0	14.2	66	18	9	8	2	5	20	1.57	.300	.354	.450	.804
Boston Red Sox	MLB	Night Games	1	1	4.26	15	0	0	12.2	53	13	8	6	2	1	15	1.11	.255	.269	.412	.681
Boston Red Sox	MLB	Leading Off Inning				23			5.0	23	6			0	2	5	1.60	.286	.348	.286	.634
Boston Red Sox	MLB	Late / Close				13			8.1	48	18			3	3	11	2.52	.419	.457	.698	1.155

Outs Splits

Team	L	Type	G	IP	BF	H	HR	BB	SO	WHIP	AVG	OBP	SLG	OPS
Boston Red Sox	MLB	No Outs	24	8.1	33	7	0	2	9	1.08	.241	.290	.241	.531
Boston Red Sox	MLB	One Out	29	9.1	39	8	3	2	10	1.07	.216	.256	.459	.715
Boston Red Sox	MLB	Two Outs	30	9.2	47	16	1	2	16	1.86	.356	.383	.533	.916

Inning Splits

Team	L	Type	ERA	G	IP	BF	H	R	ER	HR	BB	SO	WHIP	AVG	OBP	SLG	OPS
Boston Red Sox	MLB	Sixth Inning	0.00	4	2.2	10	2	0	0	0	0	2	0.75	.200	.200	.200	.400
Boston Red Sox	MLB	Seventh Inning	3.46	16	13.0	55	12	5	5	2	3	21	1.15	.231	.273	.385	.658
Boston Red Sox	MLB	Eighth Inning	7.84	11	10.1	46	15	9	9	2	2	10	1.65	.349	.378	.558	.936
Boston Red Sox	MLB	Extra Innings	0.00	2	1.1	8	2	3	0	0	1	2	2.25	.333	.429	.333	.762

Platoon Splits

Team	L	Type	W	L	ERA	G	GS	SV	IP	BF	H	R	ER	HR	BB	SO	WHIP	AVG	OBP	SLG	OPS
2 Teams	Minors	vs Left				2			0.1	4	2			0	1	1	9.00	.667	.750	.667	1.417
2 Teams	Minors	vs Right				2			1.2	5	0			0	0	3	0.00	.000	.000	.000	.000

Monthly Splits

Team	L	Type	W	L	ERA	G	GS	SV	IP	BF	H	R	ER	HR	BB	SO	WHIP	AVG	OBP	SLG	OPS
2 Teams	Minors	May	0	0	0.00	2	2	0	2.0	9	2	0	0	0	1	4	1.50	.250	.333	.250	.583
2 Teams	Minors	First Half	0	0	0.00	2	2	0	2.0	9	2	0	0	0	1	4	1.50	.250	.333	.250	.583

Baserunner Splits

Team	L	Type	G	IP	BF	H	BB	SO	WHIP	AVG	OBP	SLG	OPS
2 Teams	Minors	Bases Empty	2	0.2	4	1	1	1	3.00	.333	.500	.333	.833
2 Teams	Minors	Runner at 1st	2	1.0	4	1	0	2	1.00	.250	.250	.250	.500
Worcester Red Sox	Triple-A	Runners at 1st & 2nd	1	0.0	0	0	0	0	-	.000	.000	.000	.000
Worcester Red Sox	Triple-A	Runners at 2nd & 3rd	1	0.1	1	0	0	1	0.00	.000	.000	.000	.000
Worcester Red Sox	Triple-A	Scoring Position	1	0.1	1	0	0	1	0.00	.000	.000	.000	.000

Game Type Splits

Team	L	Type	W	L	ERA	G	GS	SV	IP	BF	H	R	ER	BB	SO	WHIP	AVG	OBP	SLG	OPS
Worcester Red Sox	Triple-A	Home Games	0	0	0.00	1	1	0	1.0	5	1	0	0	1	2	2.00	.250	.400	.250	.650
Portland Sea Dogs	Double-A	Away Games	0	0	0.00	1	1	0	1.0	4	1	0	0	0	2	1.00	.250	.250	.250	.500
2 Teams	Minors	Day Games	0	0	0.00	2	2	0	2.0	9	2	0	0	1	4	1.50	.250	.333	.250	.583
2 Teams	Minors	Leading Off Inning				2			0.1	2	1			0	1	3.00	.500	.500	.500	1.000

Outs Splits

Team	L	Type	G	IP	BF	H	BB	SO	WHIP	AVG	OBP	SLG	OPS
2 Teams	Minors	No Outs	2	0.2	3	1	0	1	1.50	.333	.333	.333	.666
2 Teams	Minors	One Out	2	0.2	2	0	0	1	0.00	.000	.000	.000	.000
2 Teams	Minors	Two Outs	2	0.2	4	1	1	2	3.00	.333	.500	.333	.833

Inning Splits

Team	L	Type	W	L	ERA	G	GS	SV	IP	BF	H	R	ER	HR	BB	SO	WHIP	AVG	OBP	SLG	OPS
2 Teams	Minors	First Inning			0.00	2			2.0	9	2	0	0	0	1	4	1.50	.250	.333	.250	.583

Date	Home Tm	Away Tm	W	L	ERA	G	IP	H	R	ER	HR	BB	SO	WHIP
2026-03-26	Cincinnati Reds	Boston Red Sox	0	0	0.00	1	1.0	0	0	0	0	1	2	1.00
2026-03-28	Cincinnati Reds	Boston Red Sox	0	1	0.00	1	0.1	1	1	0	0	1	1	2.25
March	Boston Red Sox		0	1	0.00	2	1.1	1	1	0	0	2	3	2.25
2026-04-03	Boston Red Sox	San Diego Padres	0	0	0.00	1	1.0	0	0	0	0	0	1	1.29
2026-04-04	Boston Red Sox	San Diego Padres	0	0	0.00	1	1.0	1	0	0	0	0	1	1.20
April	Boston Red Sox		0	0	0.00	2	2.0	1	0	0	0	0	2	0.50
2026-05-10	Boston Red Sox	Tampa Bay Rays	0	0	0.00	1	1.0	0	0	0	0	0	1	0.92
2026-05-13	Boston Red Sox	Philadelphia Phillies	0	0	0.00	1	1.0	1	0	0	0	0	0	0.94
2026-05-14	Boston Red Sox	Philadelphia Phillies	0	0	0.00	1	0.2	1	0	0	0	0	1	1.00
2026-05-18	Kansas City Royals	Boston Red Sox	0	0	0.00	1	1.0	0	0	0	0	0	2	0.86
2026-05-19	Kansas City Royals	Boston Red Sox	0	0	0.00	1	1.0	0	0	0	0	0	2	0.75
2026-05-22	Boston Red Sox	Minnesota Twins	0	1	4.15	1	0.2	4	4	4	2	1	1	1.27
2026-05-30	Cleveland Guardians	Boston Red Sox	0	0	3.60	1	1.1	1	0	0	0	1	2	1.30
May	Boston Red Sox		0	1	5.40	7	6.2	7	4	4	2	2	9	1.35
2026-06-05	New York Yankees	Boston Red Sox	0	0	3.27	1	1.0	0	0	0	0	0	0	1.18
2026-06-07	New York Yankees	Boston Red Sox	0	1	6.17	1	0.2	3	4	4	1	1	2	1.46
2026-06-10	Tampa Bay Rays	Boston Red Sox	0	0	7.30	1	0.2	3	2	2	1	0	0	1.62
2026-06-13	Boston Red Sox	Texas Rangers	0	0	6.75	1	1.0	1	0	0	0	0	1	1.58
2026-06-18	Boston Red Sox	Toronto Blue Jays	0	0	6.28	1	1.0	2	0	0	0	0	1	1.60
2026-06-19	Seattle Mariners	Boston Red Sox	0	0	6.14	1	0.1	0	0	0	0	0	1	1.57
2026-06-23	Colorado Rockies	Boston Red Sox	0	0	5.74	1	1.0	1	0	0	0	0	0	1.53
2026-06-24	Colorado Rockies	Boston Red Sox	0	1	6.48	1	1.0	4	2	2	0	0	1	1.68
2026-06-27	Boston Red Sox	New York Yankees	0	0	6.23	1	0.2	0	0	0	0	0	2	1.62
2026-06-28	Boston Red Sox	New York Yankees	1	0	5.89	1	1.0	1	2	0	0	0	1	1.58
2026-06-30	Boston Red Sox	Washington Nationals	0	0	6.16	1	0.2	2	1	1	0	0	2	1.63
June	Boston Red Sox		1	2	9.00	11	9.0	17	11	9	2	1	11	2.00
2026-07-05	Los Angeles Angels	Boston Red Sox	0	0	6.30	1	1.0	2	1	1	0	0	1	1.65
2026-07-07	Chicago White Sox	Boston Red Sox	0	0	6.10	1	0.2	0	0	0	0	0	2	1.60
2026-07-09	Chicago White Sox	Boston Red Sox	0	0	5.82	1	1.0	0	0	0	0	0	1	1.52
2026-07-11	New York Mets	Boston Red Sox	0	0	5.64	1	0.2	1	0	0	0	1	2	1.57
2026-07-17	Boston Red Sox	Tampa Bay Rays	0	0	5.40	1	1.0	0	0	0	0	0	1	1.50
2026-07-22	Boston Red Sox	Baltimore Orioles	0	0	5.11	1	1.1	1	0	0	0	0	1	1.46
2026-07-26	Boston Red Sox	Toronto Blue Jays	0	0	4.91	1	1.0	0	0	0	0	0	1	1.40
2026-07-27	Athletics	Boston Red Sox	0	0	4.78	1	0.2	0	0	0	0	0	0	1.37
2026-07-29	Athletics	Boston Red Sox	0	0	4.61	1	1.0	1	0	0	0	0	1	1.35
July	Boston Red Sox		0	0	1.08	9	8.1	5	1	1	0	1	10	0.72

Date	Home Tm	Away Tm	G	GS	IP	H	BB	SO	WHIP
2026-05-03	Somerset Patriots	Portland Sea Dogs	1	1	1.0	1	0	2	1.00
2026-05-06	Worcester Red Sox	Scranton/Wilkes-Barre RailRiders	1	1	1.0	1	1	2	2.00
May	Worcester Red Sox		1	1	1.0	1	1	2	2.00
May	Portland Sea Dogs		1	1	1.0	1	0	2	1.00

Statcast Statistics

Season	Age	Pitches	Batted Balls	Barrels	Barrel %	Barrel/PA	Exit Velocity	Max EV	Launch Angle	LA Sweet- Spot %	xBA	xSLG	wOBA	xwOBA	xwOBAcon	HardHit%	K%	BB%	ERA	xERA
2024	26	811	155	6	3.9	2.7	87.8	112.2	8.6	30.3	.234	.359	.253	.284	.361	36.8	25.9	4.0	2.93	3.25
2025	27	499	102	8	7.8	5.8	89.1	116.2	12.3	32.4	.231	.401	.251	.292	.332	34.3	18.2	7.3	4.24	3.51
2026	28	443	78	4	5.1	3.4	88.6	109.4	8.3	37.2	.218	.334	.327	.261	.347	37.2	29.4	5.0	4.61	2.80
Player		1753	335	18	5.4	3.8	88.4	116.2	9.7	32.5	.229	.365	.271	.281	.349	36.1	24.6	5.2
MLB					7.6	4.9	88.6	122.9	12.5	33.3	.243	.407	.315	.316	.369	37.1	22.2	8.4

! Note: All figures in this table cover the period 2015-present.

Statcast Pitch Arsenal

Slaten relies on 5 pitches.

Cutter

(42.2%) ,

Four Seamer

(26.0%) ,

Sweeper

(16.9%) ,

Sinker

(11.3%) ,

Curveball

(3.6%) ,

+ If Available Pitches Click to Video.

+ View Justin Slaten's Pitches in 3d

Batted Ball Profile

Season	GB %	AIR %	FB %	LD %	PU %	Pull %	Straight %	Oppo %	Pull GB %	Straight GB %	Oppo GB %	Pull AIR %	Straight AIR %	Oppo AIR %
		AIR: Fly Balls + Line Drives + Popups				All Batted Balls			Batted Ball Breakdown
2024	50.3	49.7	19.4	22.6	7.7	42.6	36.8	20.6	31.0	13.5	5.8	11.6	23.2	14.8
2025	41.2	58.8	27.5	23.5	7.8	40.2	37.3	22.5	26.5	9.8	4.9	13.7	27.5	17.6
2026	42.3	57.7	28.2	26.9	2.6	41.0	32.1	26.9	20.5	12.8	9.0	20.5	19.2	17.9
Player	45.7	54.3	23.9	23.9	6.6	41.5	35.8	22.7	27.2	12.2	6.3	14.3	23.6	16.4
MLB	44.1	55.9	24.2	24.6	7.1	37.5	37.3	25.1	20.7	17.5	5.8	16.8	19.7	19.2

! Note: All figures in this table cover the period 2015-present.

Quality of Contact

Season	Weak %	Topped %	Under %	Flare/Burner %	Solid %	Barrel %	Barrel/PA
2024	5.2	35.5	21.3	27.1	7.1	3.9	2.7
2025	2.0	37.3	25.5	21.6	5.9	7.8	5.8
2026	6.4	33.3	24.4	23.1	7.7	5.1	3.4
Player	4.5	35.5	23.3	24.5	6.9	5.4	3.8
MLB	4.0	32.3	25.0	24.4	5.9	7.6	4.9

! Note: All figures in this table cover the period 2015-present.

Similar Pitchers to Justin Slaten:

2024 - Spencer Schwellenbach

2025 - Taylor Clarke

2024 - Hoby Milner

2024 - Kevin Ginkel

2026 - Zack Wheeler

--- Compare All Similar Pitchers

How this works: This section shows two different ways to evaluate pitch movement. On the left, “Total Movement” shows the real-world movement of a pitch, including the forces of gravity, which affects every pitch thrown. Since gravity requires time, and slower pitches aren't 'better' just because they have more time to move, a pitch's movement is compared to other pitches of the same pitch type, within +/- 2 MPH and +/- 0.5 feet of extension/release. On the right, Induced Movement (or IVB) is reported without gravity, and attempts to isolate movement created by the pitcher's ability to spin and manipulate the ball.

						Total Movement (in inches, w/ gravity)				Induced Movement (in inches, w/o gravity)
Year	Pitch	Team	Hand	#	MPH	Vertical Drop	vs. Comparable	Horizontal Break	vs. Comparable	Vertical Break	vs. Avg	Horizontal Break	vs. Avg
2026	Sinker	BOS	R	50	97.1	14.3	-5.7	11.2ARM	-3.7	14.6	-7.0	11.2ARM	-3.9
2026	4-Seam Fastball	BOS	R	115	96.6	12.0	1.3	1.7ARM	-5.5	17.3	1.6	1.7ARM	-6.1
2026	Sweeper	BOS	R	75	86.0	35.1	-1.0	13.9GLV	1.3	1.9	-0.9	13.9GLV	0.2
2026	Curveball	BOS	R	16	84.6	51.2	2.5	6.1GLV	-1.0	-13.1	2.9	6.1GLV	-3.1
2026	Cutter	BOS	R	187	93.5	22.0	0.0	4.3GLV	2.2	9.1	1.1	4.3GLV	2.0
2025	4-Seam Fastball	BOS	R	181	96.7	11.0	2.0	2.1ARM	-5.1	18.4	2.6	2.1ARM	-5.5
2025	Sweeper	BOS	R	57	85.1	38.2	1.0	14.7GLV	1.9	-0.3	1.2	14.7GLV	0.8
2025	Curveball	BOS	R	90	84.9	54.2	5.5	5.4GLV	-1.4	-15.8	5.6	5.4GLV	-3.6
2025	Cutter	BOS	R	171	92.7	24.0	-1.7	4.7GLV	2.9	7.8	-0.6	4.7GLV	2.5
2024	Curveball	BOS	R	68	84.3	54.6	7.0	6.0GLV	-0.6	-15.8	5.8	6.0GLV	-3.4
2024	Cutter	BOS	R	306	91.5	25.0	-1.3	4.4GLV	1.8	7.6	-0.7	4.4GLV	1.7
2024	Sweeper	BOS	R	200	84.0	38.7	0.8	12.1GLV	-0.8	0.1	1.2	12.1GLV	-1.8
2024	4-Seam Fastball	BOS	R	237	96.4	10.4	2.7	5.4ARM	-1.7	19.1	3.3	5.4ARM	-2.1

! Note: Years are in reverse order.

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Run Values by Pitch Type

Year	Pitch Type	RV/100	Run Value	Pitches	%	PA	BA	SLG	wOBA	Whiff%	K%	PutAway %	xBA	xSLG	xwOBA	Hard Hit %
2026	Cutter	-0.9	-2	187	42.2	41	.351	.568	.410	19.8	17.1	25.0	.284	.480	.346	40.6
2026	4-Seam Fastball	-1.9	-2	115	26.0	35	.303	.455	.374	18.8	34.3	21.8	.222	.336	.266	47.6
2026	Sweeper	-0.8	-1	75	16.9	21	.200	.400	.274	44.4	42.9	23.7	.112	.176	.151	27.3
2026	Sinker	2.7	1	50	11.3	16	.200	.200	.269	24.0	18.8	42.9	.265	.302	.279	25.0
2026	Curveball	4.7	1	16	3.6	6	.167	.167	.150	50.0	66.7	44.4	.026	.028	.024	0.0
2025	4-Seam Fastball	1.6	3	181	36.3	48	.163	.186	.230	26.4	22.9	18.0	.160	.276	.239	37.5
2025	Cutter	3.5	6	171	34.3	48	.244	.311	.258	22.9	6.3	30.0	.284	.485	.338	27.9
2025	Curveball	-3.1	-3	90	18.0	22	.286	.571	.377	31.9	22.7	11.6	.314	.566	.386	50.0
2025	Sweeper	1.5	1	57	11.4	17	.176	.294	.200	39.4	35.3	27.3	.165	.292	.193	27.3
2024	Cutter	1.4	4	306	37.7	80	.247	.351	.298	24.1	15.0	28.6	.286	.420	.323	46.2
2024	4-Seam Fastball	2.3	5	237	29.2	58	.151	.170	.206	26.6	31.0	23.1	.159	.230	.213	22.9
2024	Sweeper	-1.1	-2	200	24.7	66	.279	.459	.352	35.6	27.3	24.7	.255	.444	.336	31.1
2024	Curveball	2.0	1	68	8.4	20	.150	.150	.135	42.3	50.0	25.0	.169	.213	.166	50.0

! Note: Years are in reverse order.

! Note: To better align with other values, positive numbers (red) are good, and negative numbers (blue) are poor.

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Spin Direction

Year	Pitch Type	Pitches	MPH	Active Spin %	Total Movement (In.)	Spin-Based	Observed	Deviation
2026	Curveball	16	84.6	76	16.7	6:45	6:45	0
2026	Cutter	187	93.5	59	9.5	12:00	11:00	60
2026	4-Seam Fastball	115	96.6	85	17.0	12:30	12:15	15
2026	Sinker	50	97.1	97	18.3	1:00	1:15	-15
2026	Sweeper	74	86.0	42	14.9	8:15	9:00	-45
2025	Curveball	89	84.9	78	19.4	6:45	6:30	15
2025	Cutter	171	92.7	52	8.6	11:30	10:45	45
2025	4-Seam Fastball	181	96.7	86	18.1	12:30	12:15	15
2025	Sweeper	56	85.1	49	15.8	8:00	8:45	-45
2024	Curveball	68	84.3	78	19.6	6:45	6:30	15
2024	Cutter	305	91.5	52	8.4	11:30	10:45	45
2024	4-Seam Fastball	236	96.4	96	19.6	12:45	12:30	15
2024	Sweeper	197	84.0	48	13.1	8:00	8:45	-45

! Note: Years are in reverse order.

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! Note: This table is showing data from the PITCHER perspective.

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Pitcher Arm Angle

! Note: Data is available from 2020 through the present.

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Statcast Pitching Run Value

				Runs
Year	Team	PA	Pitches	Heart	Shadow	Chase	Waste	All
2024		224	811	4	9	-3	-2	9
2025		135	499	7	3	-1	-1	7
2026		119	443	1	-1	-2	-1	-2
Player		478	1,753	13	11	-6	13	13

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+ Show Leverage-Based Run Value

Statcast Pitching Run Value (Leveraged)

These run values are leveraged, meaning the base/out situation at the time of the event does impact the run value (thus introducing context outside the batter's own contribution).

				Runs
Year	Team	PA	Pitches	Heart	Shadow	Chase	Waste	All	+/- Due To Leverage
2024		224	811	3	12	-1	-2	11	3
2025		135	499	4	0	-1	-1	1	-6
2026		119	443	3	-1	-1	-1	-1	2
Player		478	1,753	10	11	-4	10	12	-1

Plate Discipline

Season	Pitches	Zone %	Zone Swing %	Zone Contact %	Chase %	Chase Contact %	Edge %	1st Pitch Strike %	Swing %	Whiff %	Meatball %	Meatball Swing %
2024	811	51.3	71.2	83.1	34.9	44.9	39.5	63.4	53.5	29.0	8.1	72.7
2025	499	54.7	72.9	79.4	31.0	51.4	43.9	61.0	53.9	27.9	8.8	77.3
2026	443	53.5	66.7	84.2	32.0	53.0	41.3	64.7	50.6	25.0	7.9	74.3
Player	1,753	52.8	70.5	82.2	33.1	48.5	41.2	63.0	52.9	27.7	8.3	74.5
MLB		48.7	67.0	82.6	28.6	57.9	42.6	61.2	47.3	25.0	7.3	76.2

! Note: All figures in this table cover the period 2015-present.

Percentile Rankings

Year	Pitching	Fastball	Breaking	xERA	Fastball MPH	Fastball Spin	Curve Spin	Avg EV	Chase%	Whiff%	K%	BB%	Barrel%	Hard- Hit%	GB%	Extension
	Run Value			Pitching
2024	76	87	35	82	86	84	71	76	97	76	72	97	96	67	84	77
2025					86	89	75									86
2026					83	87										85

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Expected Home Runs

Adjusted

Year	Avg HR Trot	Actual HR	xHR	Doubters	Mostly Gone	No Doubters	No Doubter %
2024	25.90	4	4.4	3	3	2	50.0
2025	26.30	3	2.7	1	2	1	33.3
2026	23.90	4	4.0	1	2	2	50.0
Player	25.22	11	11.0	5	7	5	45.5

Note: xHR tells how many of this pitcher's batted balls allowed would have been out of other stadiums. The "Adjusted" view here accounts for different wall heights, distances and environmental effects using Statcast Park Factor data.

Standard

Year	Avg HR Trot	Actual HR	xHR	HR-xHR	Doubters	Mostly Gone	No Doubters	No Doubter %
2024	25.90	4	4.0	0	3	3	2	50.0
2025	26.30	3	2.8	0	2	2	1	33.3
2026	23.90	4	3.7	0	1	2	2	50.0
Player	25.22	11	10.5	1	6	7	5	45.5

Note: xHR tells how many of this pitcher's batted balls allowed would have been out of other stadiums. The "Standard" view here accounts for different wall heights and distances but excludes environmental effects. It is based purely on the observed trajectory of the hit.

+ View Standard Expected Home Runs

Expected Home Runs by Park

Adjusted

Year	HR
2024	4	4	4	4	4	4	5	4	4	3	5	4	6	3	4	3	4	3	4	6	5	6	7	5	3	5	4	5	5	4	4
2025	3	3	1	3	3	3	3	3	3	2	3	2	2	3	3	3	3	3	3	3	2	3	3	3	2	2	3	3	2	3	2
2026	4	4	3	5	4	4	4	4	5	4	4	4	3	4	4	4	4	4	4	5	4	4	4	4	3	4	4	4	4	4	4
Player	11	11	8	12	11	11	12	11	12	9	12	10	11	10	11	10	11	10	11	14	11	13	14	12	8	11	11	12	11	11	10

Standard

Year	HR
2024	4	4	5	4	4	4	5	3	4	2	4	4	6	3	5	3	3	3	5	5	4	7	5	4	3	3	3	3	5	4	4
2025	3	3	1	3	3	3	3	3	3	2	3	2	4	3	3	3	3	3	3	3	3	4	3	3	3	3	3	1	3	3	2
2026	4	3	4	5	4	4	4	4	4	4	4	4	3	3	4	3	3	3	4	4	3	4	4	4	3	3	4	2	4	4	4
Player	11	10	10	12	11	11	12	10	11	8	11	10	13	9	12	9	9	9	12	12	10	15	12	11	9	9	10	6	12	11	10

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Year to Year Changes

	2026	+/-		2025	+/-		2024
Results
BA	.279	+.065	↑	.214	-.009	↓	.223
xBA	.218	-.013	↓	.231	-.003	↓	.234
OBP	.316	+.046	↑	.270	+.011	↑	.259
xOBP	.258	-.027	↓	.285	+.012	↑	.273
SLG	.432	+.122	↑	.310	-.008	↓	.318
xSLG	.334	-.067	↓	.401	+.042	↑	.359
ISO	.153	+.058	↑	.095	.000		.095
xISO	.116	-.055	↓	.171	+.045	↑	.126
BABIP	.375	+.133	↑	.242	-.043	↓	.285
wOBA	.327	+.076	↑	.251	-.002	↓	.253
xwOBA	.261	-.031	↓	.292	+.008	↑	.284
wOBAcon	.448	+.170	↑	.278	-.038	↓	.316
xwOBAcon	.347	+.015	↑	.332	-.029	↓	.361
BACON	.408	+.143	↑	.265	-.038	↓	.303
xBACON	.319	+.034	↑	.285	-.039	↓	.324
Statcast Hit Metrics
Hard Hit %	37.2	+2.9	↑	34.3	-2.5	↓	36.8
Avg Exit Velocity	88.6	-0.5	↓	89.1	+1.3	↑	87.8
Launch Angle Sweet-Spot %	37.2	+4.8	↑	32.4	+2.1	↑	30.3
Barrel %	5.1	-2.7	↓	7.8	+3.9	↑	3.9
Avg Launch Angle	8.3	-4.0	↓	12.3	+3.7	↑	8.6
Statcast Bat Tracking
Bat Speed	72.2	+0.9	↑	71.3	+0.2	↑	71.1
Attack Angle	8°	-1°	↓	9°	-1°	↓	10°
Ideal Attack Angle %	45.3	-8.6	↓	53.9	+5.1	↑	48.8
Attack Direction	0°	+1°	↑	-1°	+1°	↑	-2°
Swing Path - Tilt	32°	0°	↓	33°	0°	↑	32°
Swing Length	7.2	0.0		7.2	-0.1	↓	7.3
Statcast Pitch Metrics
Fastball Velocity	95.0	+0.2	↑	94.8	+1.2	↑	93.6
Breaking Velocity	85.8	+0.8	↑	85.0	+0.9	↑	84.1
Offspeed Velocity	0.0	--		--	--		--
Batted Ball Results
Barrels	4	-4	↓	8	+2	↑	6
Popup %	2.6	-5.2	↓	7.8	+0.1	↑	7.7
Flyball %	28.2	+0.7	↑	27.5	+8.1	↑	19.4
Line Drive %	26.9	+3.4	↑	23.5	+0.9	↑	22.6
Groundball %	42.3	+1.1	↑	41.2	-9.1	↓	50.3
Pull %	41.0	+0.8	↑	40.2	-2.4	↓	42.6
Straight Away %	32.1	-5.2	↓	37.3	+0.5	↑	36.8
Opposite Field %	26.9	+4.4	↑	22.5	+1.9	↑	20.6
Weak Contact %	6.4	+4.4	↑	2.0	-3.2	↓	5.2
Pull Airball %	20.5	+6.8	↑	13.7	+2.1	↑	11.6
Topped Contact %	33.3	-4.0	↓	37.3	+1.8	↑	35.5
Under Contact %	24.4	-1.1	↓	25.5	+4.2	↑	21.3
Flare/Burner Contact %	23.1	+1.5	↑	21.6	-5.5	↓	27.1
Solid Contact %	7.7	+1.8	↑	5.9	-1.2	↓	7.1
HR/FB %	18.2	+7.5	↑	10.7	-2.6	↓	13.3
Popups	2	-6	↓	8	-4	↓	12
Flyballs	22	-6	↓	28	-2	↓	30
Line Drives	21	-3	↓	24	-11	↓	35
Groundballs	33	-9	↓	42	-36	↓	78
Plate Discipline
In Zone %	53.5	-1.2	↓	54.7	+3.4	↑	51.3
Out of Zone %	46.5	+1.2	↑	45.3	-3.4	↓	48.7
Edge %	41.3	-2.6	↓	43.9	+4.4	↑	39.5
Zone Swing %	66.7	-6.2	↓	72.9	+1.7	↑	71.2
Out of Zone Swing %	32.0	+1.0	↑	31.0	-3.9	↓	34.9
In Zone Contact %	84.2	+4.8	↑	79.4	-3.7	↓	83.1
Out of Zone Contact %	53.0	+1.6	↑	51.4	+6.5	↑	44.9
Whiff %	25.0	-2.9	↓	27.9	-1.1	↓	29.0
First Strike %	64.7	+3.7	↑	61.0	-2.4	↓	63.4
First Pitch Swing %	33.6	-4.6	↓	38.2	+0.3	↑	37.9
Swing %	50.6	-3.3	↓	53.9	+0.4	↑	53.5
Meatball Swing %	74.3	-3.0	↓	77.3	+4.6	↑	72.7
Meatball %	7.9	-0.9	↓	8.8	+0.7	↑	8.1
Zone Swing & Miss %	15.8	-4.8	↓	20.6	+3.7	↑	16.9
Out of Zone Swing & Miss %	47.0	-1.6	↓	48.6	-6.5	↓	55.1
In Zone	237	-36	↓	273	-143	↓	416
Out of Zone	206	-20	↓	226	-169	↓	395
Edge	183	-36	↓	219	-101	↓	320
In Zone Swings	158	-41	↓	199	-97	↓	296
Out of Zone Swings	66	-4	↓	70	-68	↓	138
In Zone Swing & Misses	25	-16	↓	41	-9	↓	50
Out of Zone Swing & Misses	31	-3	↓	34	-42	↓	76
Basic
Pitches	443	-56	↓	499	-312	↓	811
PA	119	-18	↓	137	-87	↓	224
AB	111	-15	↓	126	-85	↓	211
Hits	31	+4	↑	27	-20	↓	47
Singles	22	+1	↑	21	-15	↓	36
Doubles	5	+2	↑	3	-3	↓	6
Triples	0	0		0	-1	↓	1
Home Runs	4	+1	↑	3	-1	↓	4
Walks	6	-4	↓	10	+1	↑	9
Strikeouts	35	+10	↑	25	-33	↓	58
K%	29.4	+11.2	↑	18.2	-7.7	↓	25.9
BB%	5.0	-2.3	↓	7.3	+3.3	↑	4.0
HBP	0	0		0	-2	↓	2
Batted Balls	78	-24	↓	102	-53	↓	155
Fastball Percent	79.5	+9.0	↑	70.5	+3.5	↑	67.0
Offspeed Percent	0.0	0.0		0.0	0.0		0.0
Breaking Percent	20.5	-9.0	↓	29.5	-3.5	↓	33.0
Number of Fastballs	352	0		352	-191	↓	543
Number of Offspeed	0	0		0	0		0
Number of Breaking	91	-56	↓	147	-121	↓	268

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Statcast Fielder Positioning

				vs RHH			vs LHH
Year	Alignment Type	PA	wOBA	PA	Total	%	PA	Total	%
2024	Shades	224	.253	119	5	4.2	105	71	67.6
2025	Shades	135	.251	76	1	1.3	59	39	66.1
2026	Shades	119	.327	58	2	3.4	61	8	13.1

! Note: Shifts are through the 2022 season, Shaded starting from the 2023 season, Shift: three or more infielders are on the same side of second base, Shade: positioned outside of their typical responsible slices of the field.
Learn more about how positioning is defined here

Pitch Tempo

		Bases Empty				Runners On Base
Season	Team	Pitches	Tempo	Fast %	Slow %	Pitches	Tempo	Fast %	Slow %
2024		213	16.5	13.6%	0.5%	94	18.0	2.1%	0.0%
2025		121	15.6	39.7%	0.8%	77	16.6	18.2%	0.0%
2026		82	16.4	17.1%	6.1%	78	18.2	0.0%	2.6%

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Pitch Distribution

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Statcast Fielding Breakdown

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Red Sox Fireman's Award

SAL Pitcher of the Week