Seranthony Domínguez

#58 Active

RP ● Seattle Mariners ● 6'1" · 225 lbs ● Bats: R · Throws: R

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Season SV

Season ERA

3.48

Season WHIP

0.77

Season K

Season HLD

Next Matchup vs BAL Fri 10:10 PM ET · SP: K. Gausman

DFS Last 5

Game Log

2026 Regular Season

DATE	OPPONENT	DEC	IP	H	R	ER	HR	BB	SO	ERA	WHIP	PC	RESULT
Sep 20	@ Colorado Rockies	HLD	1.0	1	0	0	0	0	1	3.75	1.23	12	W 2-1
Sep 18	@ Colorado Rockies		1.1	1	0	0	0	0	2	3.81	1.24	24	W 5-4
Sep 15	@ Los Angeles Angels		1.0	0	0	0	0	0	1	3.90	1.25	12	L 1-2
Sep 13	@ Las Vegas Athletics	BS	1.0	2	0	0	0	0	0	3.98	1.27	18	L 7-8
Sep 11	@ Las Vegas Athletics		1.2	1	0	0	0	0	1	4.05	1.26	25	L 5-6
Sep 9	vs. Texas Rangers	HLD	1.0	0	0	0	0	1	1	4.18	1.28	20	W 2-3
Sep 4	vs. Las Vegas Athletics		1.1	1	0	0	0	0	0	4.26	1.28	13	L 7-6
Sep 2	@ Boston Red Sox		1.0	0	0	0	0	0	0	4.38	1.30	7	W 8-3
Aug 31	@ Boston Red Sox	HLD	1.0	0	0	0	0	0	0	4.47	1.32	8	L 8-9
Aug 30	@ Toronto Blue Jays		1.0	0	0	0	0	1	0	4.56	1.35	16	L 0-7
Aug 28	@ Toronto Blue Jays		1.0	1	1	1	1	1	0	4.66	1.36	24	L 1-8
Aug 24	vs. Philadelphia Phillies		2.0	0	0	0	0	0	2	4.57	1.35	30	W 2-9
Aug 22	vs. Chicago Cubs		1.0	0	0	0	0	0	3	4.78	1.41	15	W 4-5
Aug 21	vs. Chicago Cubs	W	1.0	0	0	0	0	0	1	4.89	1.44	14	W 5-6
Aug 19	@ Milwaukee Brewers		0.2	2	2	2	0	1	0	5.01	1.48	20	W 7-5
Aug 16	@ Houston Astros	HLD	0.1	1	0	0	0	0	1	4.65	1.43	6	W 3-2
Aug 15	@ Houston Astros		1.0	1	1	1	0	0	0	4.69	1.41	12	W 10-5
Aug 12	@ New York Yankees		0.1	0	0	0	0	0	0	4.58	1.42	2	L 5-10
Aug 11	@ New York Yankees		1.0	0	0	0	0	1	0	4.62	1.44	24	L 1-4
Aug 8	vs. Tampa Bay Rays		0.2	1	0	0	0	0	1	4.74	1.45	14	L 3-2
Aug 7	vs. Tampa Bay Rays		1.0	1	0	0	0	1	2	4.82	1.45	16	L 2-1
Aug 4	vs. Detroit Tigers		0.1	4	4	4	2	2	0	4.95	1.43	26	L 8-0
Aug 1	@ Tampa Bay Rays		1.0	0	0	0	0	0	2	4.00	1.28	14	L 0-1
Jul 30	vs. New York Yankees		0.1	0	0	0	0	0	0	4.11	1.31	7	W 1-2
Jul 27	vs. New York Yankees		1.0	1	0	0	0	0	0	4.15	1.33	13	L 9-5
Jul 26	vs. Houston Astros		1.0	1	0	0	0	0	1	4.28	1.34	13	W 3-12
Jul 24	vs. Houston Astros		0.0	0	0	0	0	0	0	4.41	1.35	0	L 9-5
Jul 12	vs. Las Vegas Athletics		1.0	0	0	0	0	0	1	4.41	1.35	14	W 1-9
Jul 8	vs. Boston Red Sox		1.0	0	0	0	0	1	1	4.55	1.39	13	L 5-0
Jul 7	vs. Boston Red Sox		1.0	1	0	0	0	1	2	4.70	1.40	19	L 8-1
Jul 3	@ Cleveland Guardians	HLD	0.1	0	2	2	0	2	1	4.85	1.38	16	L 3-4
Jun 28	vs. Kansas City Royals		1.0	1	0	0	0	0	2	4.30	1.33	18	L 5-4
Jun 22	vs. Cleveland Guardians	BS	0.1	2	2	2	0	1	1	4.45	1.34	22	W 5-6
Jun 21	@ Detroit Tigers	BS	1.0	3	1	1	0	0	1	3.86	1.25	27	L 4-5
Jun 19	@ Detroit Tigers		1.0	1	0	0	0	0	0	3.67	1.19	18	L 3-4
Jun 14	vs. Los Angeles Dodgers	SV	1.0	1	1	1	0	2	2	3.81	1.19	33	W 4-6
Jun 10	vs. Atlanta Braves	HLD	1.0	0	0	0	0	0	0	3.60	1.12	14	W 1-2
Jun 9	vs. Atlanta Braves		1.0	0	0	0	0	1	0	3.75	1.17	13	W 5-6
Jun 5	@ Philadelphia Phillies		0.1	0	0	0	0	1	1	3.91	1.17	11	L 6-8
May 30	vs. Detroit Tigers	HLD	1.0	0	0	0	0	0	1	3.97	1.15	15	W 1-7
May 29	vs. Detroit Tigers		1.0	0	0	0	0	0	1	4.15	1.20	10	W 3-4
May 25	vs. Minnesota Twins	SV	1.0	1	0	0	0	0	2	4.35	1.26	19	W 1-3
May 24	@ San Francisco Giants		1.0	1	0	0	0	0	2	4.58	1.27	15	L 5-8
May 17	vs. Chicago Cubs	BS	1.0	1	3	2	1	1	1	4.82	1.29	32	W 8-9
May 13	vs. Kansas City Royals	SV	1.0	2	2	2	1	0	1	4.08	1.25	14	W 5-6
May 12	vs. Kansas City Royals	W	1.0	0	0	0	0	0	0	3.24	1.20	10	W 5-6
May 10	vs. Seattle Mariners	SV	1.0	2	0	0	0	1	1	3.45	1.28	23	W 1-2
May 8	vs. Seattle Mariners		1.0	0	0	0	0	0	2	3.68	1.16	14	L 12-8
May 2	@ San Diego Padres	SV	0.2	0	0	0	0	0	1	3.95	1.24	6	W 4-0
Apr 29	vs. Los Angeles Angels	W	1.0	0	0	0	0	0	1	4.15	1.31	16	W 2-3
Apr 28	vs. Los Angeles Angels	SV	1.0	0	0	0	0	1	1	4.50	1.42	12	W 2-5
Apr 26	vs. Washington Nationals	L	1.0	1	2	1	1	0	0	4.91	1.45	18	L 2-1
Apr 24	vs. Washington Nationals	SV	1.0	1	0	0	0	0	2	4.50	1.50	18	W 4-5
Apr 23	@ Arizona Diamondbacks	SV	1.0	0	0	0	0	0	2	5.00	1.56	12	W 4-1
Apr 19	@ Las Vegas Athletics	SV	1.0	0	0	0	0	1	1	5.63	1.75	19	W 7-4
Apr 18	@ Las Vegas Athletics		1.0	0	0	0	0	2	1	6.43	1.86	16	L 6-7
Apr 16	vs. Tampa Bay Rays	L	0.1	2	3	3	1	1	1	7.50	1.83	32	L 5-3
Apr 12	@ Kansas City Royals	SV	1.0	0	0	0	0	1	2	3.18	1.41	15	W 6-5
Apr 9	@ Kansas City Royals	SV	1.0	0	0	0	0	1	2	3.86	1.50	15	W 2-0
Apr 4	vs. Toronto Blue Jays	SV	1.0	1	0	0	0	1	1	4.91	1.64	24	W 3-6
Apr 3	vs. Toronto Blue Jays	W	1.1	0	1	0	0	0	2	6.75	1.50	22	W 4-5
Mar 29	@ Milwaukee Brewers	L	0.1	2	2	2	1	1	0	13.50	3.00	19	L 7-9
Mar 28	@ Milwaukee Brewers		1.0	1	0	0	0	0	0	0.00	1.00	13	L 1-6
No games against that opponent.
Total		4-3	57.2	43	27	24	8	28	59	3.75	1.23	1,032
Total	1 game	0-0	1.0	0	0	0	0	0	2	0.00	0.00	12
Total	2 games	0-0	2.0	0	0	0	0	1	0	0.00	0.50	27
Total	4 games	0-0	4.0	1	0	0	0	2	3	0.00	0.75	47
Total	3 games	1-0	3.0	1	3	2	1	1	5	6.00	0.67	61
Total	2 games	0-0	0.2	2	4	4	0	3	2	54.00	7.50	38
Total	2 games	0-0	2.1	2	0	0	0	0	3	0.00	0.86	36
Total	5 games	0-0	4.1	8	5	5	2	2	3	10.38	2.31	96
Total	4 games	0-0	2.1	3	1	1	0	0	2	3.86	1.29	31
Total	5 games	1-0	5.0	3	2	2	1	2	7	3.60	1.00	72
Total	6 games	0-0	7.0	4	0	0	0	3	4	0.00	1.00	105
Total	3 games	1-0	3.0	0	0	0	0	1	3	0.00	0.33	40
Total	1 game	0-0	1.0	1	1	1	0	2	2	9.00	3.00	33
Total	3 games	0-1	2.0	5	4	4	1	2	0	18.00	3.50	52
Total	1 game	0-0	1.0	1	0	0	0	0	2	0.00	1.00	19
Total	4 games	0-0	2.2	1	0	0	0	1	0	0.00	0.75	46
Total	2 games	0-0	2.1	0	0	0	0	1	3	0.00	0.43	41
Total	1 game	0-0	0.2	0	0	0	0	0	1	0.00	0.00	6
Total	1 game	0-0	1.0	1	0	0	0	0	2	0.00	1.00	15
Total	2 games	0-0	2.0	2	0	0	0	1	3	0.00	1.50	37
Total	4 games	0-1	3.0	4	3	3	1	2	6	9.00	2.00	76
Total	1 game	0-0	1.0	0	0	0	0	1	1	0.00	1.00	20
Total	4 games	1-0	4.1	2	2	1	1	3	3	2.08	1.15	86
Total	2 games	0-1	2.0	2	2	1	1	0	2	4.50	1.00	36

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).