The Seattle Mariners gave up their most runs in a game versus the Red Sox on August 15, 2015, with 22 runs.

Interpreted as:

most runs allowed in a regular-season game by mariners

	TEAM	R	DATE	TM		OPP	RESULT	ERA	SO	SHO	SV	IP	H	ER	HR	BB	HBP	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	H/9
1	Mariners	22	8/15/2015	SEA	@	BOS	L 10-22	22.50	3	0	0	8.0	26	20	4	6	1	0	57	1	3.38	6.75	0.50	4.50	5.3	10.5	4.00	.512	24.75	29.25
2	Mariners	21	9/8/2019	SEA	@	HOU	L 1-21	19.13	8	0	0	8.0	22	17	2	7	1	0	55	0	9.00	7.88	1.14	2.25	14.5	12.7	3.63	.541	23.63	24.75
3	Mariners	20	6/13/2017	SEA	@	MIN	L 7-20	21.38	4	0	0	8.0	28	19	5	2	0	0	51	0	4.50	2.25	2.00	5.63	7.8	3.9	3.75	.575	22.50	31.50
4	Mariners	20	4/17/1993	SEA	@	DET	L 3-20	22.50	7	0	0	8.0	20	20	2	10	1	1	54	1	7.88	11.25	0.70	2.25	13.0	18.5	3.75	.529	22.50	22.50
5	Mariners	19	4/25/2017	SEA	@	DET	L 9-19	21.38	5	0	0	8.0	24	19	4	7	0	1	55	1	5.63	7.88	0.71	4.50	9.1	12.7	3.88	.513	21.38	27.00
6	Mariners	19	8/9/2000	SEA	@	CWS	L 3-19	18.00	4	0	0	8.0	24	16	4	5	0	0	53	3	4.50	5.63	0.80	4.50	7.5	9.4	3.63	.500	21.38	27.00
7	Mariners	19	6/26/1983	SEA	vs	TOR	L 7-19	18.00	6	0	0	9.0	21	18	4	9	1	0	57	1	6.00	9.00	0.67	4.00	10.5	15.8	3.33	.459	19.00	21.00
8	Mariners	18	5/18/2019	SEA	vs	MIN	L 4-18	17.00	5	0	0	9.0	19	17	6	6	0	0	53	0	5.00	6.00	0.83	6.00	9.4	11.3	2.78	.361	18.00	19.00
9	Mariners	18	7/16/2004	SEA	vs	CLE	L 6-18	18.00	5	0	0	9.0	21	18	8	5	3	0	55	0	5.00	5.00	1.00	8.00	9.1	9.1	2.89	.382	18.00	21.00
10	Mariners	18	4/18/2000	SEA	@	CWS	L 11-18	20.25	5	0	0	8.0	19	18	3	8	1	1	51	0	5.63	9.00	0.63	3.38	9.8	15.7	3.38	.471	20.25	21.38
11	Mariners	18	5/21/1997	SEA	@	ANA	L 3-18	18.00	4	0	0	8.0	21	16	3	7	0	0	54	0	4.50	7.88	0.57	3.38	7.4	13.0	3.50	.450	20.25	23.63
12	Mariners	18	4/15/1979	SEA	vs	MIN	L 6-18	11.00	5	0	0	9.0	20	11	3	7	0	0	55	0	5.00	7.00	0.71	3.00	9.1	12.7	3.00	.425	18.00	20.00
13	Mariners	17	7/3/2007	SEA	@	KCR	L 3-17	15.75	4	0	0	8.0	16	14	2	4	3	0	49	1	4.50	4.50	1.00	2.25	8.2	8.2	2.50	.389	19.13	18.00
14	Mariners	17	5/1/1998	SEA	vs	DET	L 3-17	15.00	6	0	0	9.0	20	15	2	2	3	0	51	0	6.00	2.00	3.00	2.00	11.8	3.9	2.44	.474	17.00	20.00
15	Mariners	17	5/3/1997	SEA	vs	MIL	L 4-17	15.00	5	0	0	9.0	17	15	4	6	0	0	49	0	5.00	6.00	0.83	4.00	10.2	12.2	2.56	.382	17.00	17.00
16	Mariners	17	6/13/1994	SEA	@	TEX	L 9-17	19.13	4	0	0	8.0	22	17	5	4	1	0	51	0	4.50	4.50	1.00	5.63	7.8	7.8	3.25	.459	19.13	24.75
17	Mariners	17	9/8/1991	SEA	@	BOS	L 6-17	19.13	5	0	0	8.0	17	17	1	10	1	2	52	0	5.63	11.25	0.50	1.13	9.6	19.2	3.38	.457	19.13	19.13
18	Mariners	17	8/30/1981	SEA	@	CLE	L 11-17	15.75	3	0	0	8.0	16	14	0	6	0	2	48	1	3.38	6.75	0.50	0.00	6.3	12.5	2.75	.410	19.13	18.00
19	Mariners	16	6/3/2023	SEA	@	TEX	L 6-16	18.00	10	0	0	8.0	19	16	4	5	0	0	48	1	11.25	5.63	2.00	4.50	20.8	10.4	3.00	.517	18.00	21.38
20	Mariners	16	5/21/2021	SEA	@	SDP	L 1-16	18.00	8	0	0	8.0	17	16	3	6	0	0	46	0	9.00	6.75	1.33	3.38	17.4	13.0	2.88	.483	18.00	19.13
21	Mariners	16	8/29/2020	SEA	@	LAA	L 3-16	18.00	7	0	0	8.0	13	16	3	11	2	0	49	0	7.88	12.38	0.64	3.38	14.3	22.4	3.00	.385	18.00	14.62
22	Mariners	16	5/20/2017	SEA	vs	CWS	L 1-16	15.00	4	0	0	9.0	19	15	4	2	0	0	47	1	4.00	2.00	2.00	4.00	8.5	4.3	2.33	.405	16.00	19.00
23	Mariners	16	4/9/2013	SEA	vs	HOU	L 9-16	16.00	10	0	0	9.0	22	16	5	6	0	0	53	1	10.00	6.00	1.67	5.00	18.9	11.3	3.11	.531	16.00	22.00
24	Mariners	16	6/22/2007	SEA	vs	CIN	L 1-16	16.00	10	0	0	9.0	16	16	5	6	2	0	52	1	10.00	6.00	1.67	5.00	19.2	11.5	2.44	.379	16.00	16.00
25	Mariners	16	5/8/2003	SEA	vs	NYY	L 5-16	16.00	2	0	0	9.0	17	16	2	3	1	0	48	0	2.00	3.00	0.67	2.00	4.2	6.3	2.22	.375	16.00	17.00

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Results may be incomplete. StatMuse has complete team, game-level data for runs allowed going back to the 1901 season.

Some of the information used here was obtained free of charge from Retrosheet.

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2026 Division Standings

TEAM	W	L	PCT	GB
Mariners	32	29	.525
Rangers	29	31	.483	2.5
Athletics	28	31	.475	3.0
Astros	27	34	.443	5.0
Angels	23	38	.377	9.0

Schedule

DATE	MATCHUP			TIME (ET)
Tue 6/2	NYM	@	SEA	9:40 PM
Wed 6/3	NYM	@	SEA	3:40 PM
Fri 6/5	SEA	@	DET	6:40 PM
Sat 6/6	SEA	@	DET	1:10 PM
Sun 6/7	SEA	@	DET	1:40 PM

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Mon 1 Jun 2026

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Run Leaders

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Turang

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SLG Leaders

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MLB 2026 Pitching Leaders

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Strikeout Leaders

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DraftKings Points Leaders

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Worst Record ATS

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NL East	W	L	PCT	GB
Braves	40	20	.667
Phillies	30	29	.508	9.5
Nationals	31	30	.508	9.5
Marlins	27	34	.443	13.5
Mets	26	34	.433	14.0
NL Central	W	L	PCT	GB
Brewers	36	21	.632
Cardinals	31	27	.534	5.5
Pirates	32	28	.533	5.5
Cubs	32	28	.533	5.5
Reds	30	29	.508	7.0
NL West	W	L	PCT	GB
Dodgers	38	22	.633
Padres	32	26	.552	5.0
Diamondbacks	32	27	.542	5.5
Giants	23	37	.383	15.0
Rockies	23	38	.377	15.5

AL East	W	L	PCT	GB
Rays	36	21	.632
Yankees	36	23	.610	1.0
Blue Jays	29	31	.483	8.5
Orioles	28	32	.467	9.5
Red Sox	25	33	.431	11.5
AL Central	W	L	PCT	GB
Guardians	34	27	.557
White Sox	32	28	.533	1.5
Twins	28	33	.459	6.0
Royals	23	37	.383	10.5
Tigers	23	38	.377	11.0
AL West	W	L	PCT	GB
Mariners	32	29	.525
Rangers	29	31	.483	2.5
Athletics	28	31	.475	3.0
Astros	27	34	.443	5.0
Angels	23	38	.377	9.0

MLB 2026 Scores & Schedule

Scores

DATE	MATCHUP			SCORE
Sun 5/17	BAL	@	WSH	7-3
Sun 5/17	TEX	@	HOU	8-0
Sun 5/17	AZ	@	COL	8-6
Mon 5/18	BAL	@	TBR	6-16
Mon 5/18	ATL	@	MIA	0-12

Schedule

DATE	MATCHUP			TIME (ET)
Tue 6/2	DET	@	TBR	6:40 PM
Tue 6/2	SDP	@	PHI	6:40 PM
Tue 6/2	MIA	@	WSH	6:45 PM
Tue 6/2	BAL	@	BOS	6:45 PM
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The Seattle Mariners gave up their most runs in a game versus the Red Sox on August 15, 2015, with 22 runs.

Interpreted as:

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