Justin Slaten

#63 Active

RP ● Boston Red Sox ● 6'4" · 222 lbs ● Bats: R · Throws: R ● New Mexico

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Season SV

Season ERA

4.60

Season WHIP

1.37

Season K

Season HLD

Next Matchup vs STL Mon 1:05 PM ET

DFS Last 5

Game Log

2026 Regular Season

DATE	OPPONENT	DEC	IP	H	R	ER	HR	BB	SO	ERA	WHIP	PC	RESULT
Aug 12	@ Toronto Blue Jays		1.0	0	0	0	0	1	1	5.08	1.45	21	L 4-6
Aug 8	vs. Las Vegas Athletics		0.2	1	1	1	0	1	0	5.27	1.46	14	L 7-3
Aug 6	vs. Chicago White Sox		1.0	3	2	1	0	0	2	5.06	1.43	17	W 11-12
Aug 2	@ Los Angeles Dodgers	HLD	0.1	0	0	0	0	0	0	4.91	1.36	5	W 8-4
Aug 1	@ Los Angeles Dodgers	W	1.0	0	0	0	0	0	1	4.97	1.38	8	W 3-2
Jul 29	@ Las Vegas Athletics		0.2	0	0	0	0	0	0	5.18	1.44	7	W 4-2
Jul 27	@ Las Vegas Athletics		0.2	0	0	0	0	0	0	5.32	1.48	5	W 4-2
Jul 26	vs. Toronto Blue Jays		0.2	0	0	0	0	0	0	5.48	1.52	9	W 1-6
Jul 11	@ New York Mets	HLD	0.2	1	0	0	0	1	2	5.64	1.57	17	W 4-0
Jul 9	@ Chicago White Sox	HLD	1.0	0	0	0	0	0	1	5.82	1.52	8	W 2-1
Jul 7	@ Chicago White Sox	HLD	0.2	0	0	0	0	0	2	6.10	1.60	10	W 8-1
Jul 5	@ Los Angeles Angels		1.0	2	1	1	0	0	1	6.30	1.65	18	W 7-5
Jun 30	vs. Washington Nationals		0.2	2	1	1	0	0	2	6.16	1.63	13	L 8-1
Jun 28	vs. New York Yankees	W	1.0	1	2	0	0	0	1	5.89	1.58	16	W 4-5
Jun 27	vs. New York Yankees	HLD	0.2	0	0	0	0	0	2	6.23	1.62	12	W 1-4
Jun 24	@ Colorado Rockies	L	1.0	4	2	2	0	0	1	6.48	1.68	19	L 6-8
Jun 23	@ Colorado Rockies		1.0	1	0	0	0	0	0	5.74	1.53	7	W 5-2
Jun 19	@ Seattle Mariners	HLD	0.1	0	0	0	0	0	1	6.14	1.57	6	W 6-2
Jun 18	vs. Toronto Blue Jays		1.0	2	0	0	0	0	1	6.28	1.60	15	L 4-3
Jun 13	vs. Texas Rangers		1.0	1	0	0	0	0	1	6.75	1.58	16	W 3-6
Jun 10	@ Tampa Bay Rays		0.2	3	2	2	1	0	0	7.30	1.62	19	L 5-7
Jun 7	@ New York Yankees	L	0.2	3	4	4	1	1	2	6.17	1.46	25	L 1-6
Jun 5	@ New York Yankees	HLD	1.0	0	0	0	0	0	0	3.27	1.18	4	W 5-3
May 30	@ Cleveland Guardians	HLD	1.1	1	0	0	0	1	2	3.60	1.30	21	W 9-1
May 22	vs. Minnesota Twins	L	0.2	4	4	4	2	1	1	4.15	1.27	28	L 8-6
May 19	@ Kansas City Royals	HLD	1.0	0	0	0	0	0	2	0.00	0.75	12	W 7-1
May 18	@ Kansas City Royals	HLD	1.0	0	0	0	0	0	2	0.00	0.86	17	W 3-1
May 14	vs. Philadelphia Phillies		0.2	1	0	0	0	0	1	0.00	1.00	8	L 3-1
May 13	vs. Philadelphia Phillies	HLD	1.0	1	0	0	0	0	0	0.00	0.94	14	W 1-3
May 10	vs. Tampa Bay Rays		1.0	0	0	0	0	0	1	0.00	0.92	15	L 4-1
Apr 4	vs. San Diego Padres		1.0	1	0	0	0	0	1	0.00	1.20	19	L 3-2
Apr 3	vs. San Diego Padres	HLD	1.0	0	0	0	0	0	1	0.00	1.29	9	W 2-5
Mar 28	@ Cincinnati Reds	L	0.1	1	1	0	0	1	1	0.00	2.25	11	L 5-6
Mar 26	@ Cincinnati Reds	HLD	1.0	0	0	0	0	1	2	0.00	1.00	17	W 3-0
No games against that opponent.
Total		2-4	28.1	33	20	16	4	8	35	5.08	1.45	462
Total	3 games	0-0	2.2	3	2	1	0	0	5	3.38	1.13	35
Total	2 games	0-1	1.1	1	1	0	0	2	3	0.00	2.25	28
Total	1 game	0-0	1.1	1	0	0	0	1	2	0.00	1.50	21
Total	2 games	0-1	2.0	5	2	2	0	0	1	9.00	2.50	26
Total	2 games	0-0	2.0	0	0	0	0	0	4	0.00	0.00	29
Total	3 games	0-0	2.0	1	1	1	0	1	0	4.50	1.00	26
Total	1 game	0-0	1.0	2	1	1	0	0	1	9.00	2.00	18
Total	2 games	1-0	1.1	0	0	0	0	0	1	0.00	0.00	13
Total	1 game	0-1	0.2	4	4	4	2	1	1	54.00	7.50	28
Total	1 game	0-0	0.2	1	0	0	0	1	2	0.00	3.00	17
Total	4 games	1-1	3.1	4	6	4	1	1	5	10.80	1.50	57
Total	2 games	0-0	1.2	2	0	0	0	0	1	0.00	1.20	22
Total	2 games	0-0	2.0	1	0	0	0	0	2	0.00	0.50	28
Total	1 game	0-0	0.1	0	0	0	0	0	1	0.00	0.00	6
Total	2 games	0-0	1.2	3	2	2	1	0	1	10.80	1.80	34
Total	1 game	0-0	1.0	1	0	0	0	0	1	0.00	1.00	16
Total	3 games	0-0	2.2	2	0	0	0	1	2	0.00	1.13	45
Total	1 game	0-0	0.2	2	1	1	0	0	2	13.50	3.00	13

AVG, OBP, SLG, ERA and WHIP are season-to-date through each game, not that game alone — so the column reads as a trend and its last value is the season figure. They stay season-to-date when the log is filtered by opponent; the figure for the filtered games is the one in the Total row. The second game of a doubleheader is marked (2).