Justin Slaten #63

Boston Red Sox

P
B/T: R/R
6' 4"/222
Age: 28

Justin Michael Slaten
Status: Active
Born: 9/15/1997 in Longview, TX
Draft: 2019, Texas Rangers, Round: 3, Overall Pick: 86
College: New Mexico
MLB Debut: 3/30/2024

2025 Stats

G	W-L	ERA	IP	SO	WHIP
3	1-0	0.00	3.0	5	0.67

G	W-L	ERA	IP	SO	WHIP
3	1-0	0.00	3.0	5	0.67

2025 Stats

G	W-L	ERA	IP	SO	WHIP
36	2-4	4.24	34.0	25	1.09

G	W-L	ERA	IP	SO	WHIP
36	2-4	4.24	34.0	25	1.09

MiLB Career Stats

G	W-L	ERA	IP	SO	WHIP
101	11-19	5.27	213.1	290	1.49

G	W-L	ERA	IP	SO	WHIP
101	11-19	5.27	213.1	290	1.49

MLB Career Stats

G	W-L	ERA	IP	SO	WHIP
80	8-6	3.43	89.1	83	1.04

G	W-L	ERA	IP	SO	WHIP
80	8-6	3.43	89.1	83	1.04

Year	W	L	ERA	G	GS	SV	IP	SO	WHIP
2025 MiLB Stats	1	0	0.00	3	0	0	3.0	5	0.67
2025 MLB Stats	2	4	4.24	36	0	3	34.0	25	1.09
MiLB Career Stats	11	19	5.27	101	35	2	213.1	290	1.49
MLB Career Stats	8	6	3.43	80	0	5	89.1	83	1.04

Year	W	L	ERA	G	GS	SV	IP	SO	WHIP
2025 MiLB Stats	1	0	0.00	3	0	0	3.0	5	0.67
2025 MLB Stats	2	4	4.24	36	0	3	34.0	25	1.09
MiLB Career Stats	11	19	5.27	101	35	2	213.1	290	1.49
MLB Career Stats	8	6	3.43	80	0	5	89.1	83	1.04

Next Game:

Splits

Duration	W	L	ERA	G	SV	IP	H	ER	BB	SO	WHIP
Last 7 Games	0	0	3.18	7	0	5.2	3	2	2	3	0.88
Last 15 Games	1	1	4.73	15	0	13.1	15	7	5	10	1.50
Last 30 Games	2	4	3.72	30	2	29.0	23	12	9	22	1.10

Duration	W	L	ERA	G	SV	IP	H	ER	BB	SO	WHIP
Last 7 Games	0	0	3.18	7	0	5.2	3	2	2	3	0.88
Last 15 Games	1	1	4.73	15	0	13.1	15	7	5	10	1.50
Last 30 Games	2	4	3.72	30	2	29.0	23	12	9	22	1.10

Last 3 Games	IP	H	BB
9/26 vs DET	0.2	0	1
9/23 @ TOR	1.0	0	0
9/20 @ TB	0.1	1	0

Last 3 Games	IP	H	BB
9/26 vs DET	0.2	0	1
9/23 @ TOR	1.0	0	0
9/20 @ TB	0.1	1	0

2025 : RP (36)

More Justin Slaten

9/26/2025 at 2:48 PM 9/26/2025 at 2:48 PM

(10) Spokane Indians in 2025 MLB Postseason

8/19/2025 at 9:20 PM 8/19/2025 at 9:20 PM

Justin Slaten strikes out the side in an inning

12/25/2023 at 9:35 PM 12/25/2023 at 9:35 PM

These prospects rebounded in a big way in 2023

Latest Transactions

Team	Date	Transaction
	August 28, 2025	Boston Red Sox activated RHP Justin Slaten from the 60-day injured list.
	August 19, 2025	Boston Red Sox sent RHP Justin Slaten on a rehab assignment to Worcester Red Sox.
	August 19, 2025	Boston Red Sox sent RHP Justin Slaten on a rehab assignment to Worcester Red Sox.
	June 28, 2025	Boston Red Sox transferred RHP Justin Slaten from the 15-day injured list to the 60-day injured list.
	June 1, 2025	Boston Red Sox placed RHP Justin Slaten on the 15-day injured list retroactive to May 29, 2025. Right shoulder inflammation.
	April 16, 2025	RHP Justin Slaten changed number to 63.
	April 15, 2025	RHP Justin Slaten changed number to 42.
	August 26, 2024	Boston Red Sox activated RHP Justin Slaten from the 15-day injured list.
	August 23, 2024	Boston Red Sox sent RHP Justin Slaten on a rehab assignment to Portland Sea Dogs.
	July 12, 2024	Boston Red Sox placed RHP Justin Slaten on the 15-day injured list retroactive to July 9, 2024. Right elbow inflammation.
	December 6, 2023	New York Mets traded RHP Justin Slaten to Boston Red Sox for LHP Ryan Ammons.
	December 6, 2023	New York Mets drafted RHP Justin Slaten.
	September 22, 2023	Surprise Saguaros activated RHP Justin Slaten.
	September 12, 2023	RHP Justin Slaten assigned to Round Rock Express from Frisco RoughRiders.
	June 2, 2023	Frisco RoughRiders activated RHP Justin Slaten from the 7-day injured list.
	May 2, 2023	Frisco RoughRiders placed RHP Justin Slaten on the 7-day injured list.
	October 5, 2022	Frisco RoughRiders activated RHP Justin Slaten from the 7-day injured list.
	July 12, 2022	Frisco RoughRiders activated RHP Justin Slaten.
	July 12, 2022	Frisco RoughRiders placed RHP Justin Slaten on the 7-day injured list.
	July 8, 2022	Frisco RoughRiders sent RHP Justin Slaten on a rehab assignment to ACL Rangers.
	June 23, 2022	Frisco RoughRiders placed RHP Justin Slaten on the 7-day injured list.
	March 31, 2022	RHP Justin Slaten assigned to Frisco RoughRiders from Hickory Crawdads.
	October 8, 2021	Hickory Crawdads activated RHP Justin Slaten.
	September 15, 2021	Hickory Crawdads transferred RHP Justin Slaten to the Development List.
	May 4, 2021	RHP Justin Slaten assigned to Hickory Crawdads from Rangers Organization.
	February 12, 2021	RHP Justin Slaten assigned to Rangers Organization.
	February 12, 2021	RHP Justin Slaten assigned to Rangers Organization.
	June 24, 2019	RHP Justin Slaten assigned to Spokane Indians.
	June 24, 2019	RHP Justin Slaten assigned to Spokane Indians from AZL Rangers.
	June 17, 2019	RHP Justin Slaten assigned to AZL Rangers.
	June 17, 2019	RHP Justin Slaten assigned to AZL Rangers.
	June 12, 2019	Texas Rangers signed RHP Justin Slaten.

+ Show More Transactions

Awards

SAL Pitcher of the Week

Week
07/11/2021	Hickory Crawdads	A+ E

Red Sox Fireman's Award

Year
2024	Boston Red Sox	AL

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