Seattle Mariners 2026 Schedule

2026 · 24-27 overall · 18-33 ATS · 51 games

The Seattle Mariners are 24-27 in 2026 across 51 games, going 18-33 against the spread (35% cover rate). Closing lines from DraftKings, FanDuel, and BetMGM, graded against official MLB box scores.

See methodology.

Date	Opponent	Score	ATS	ML	O/U
2026-05-20	vs White Sox	W 5-4	✗	W	O
2026-05-19	vs White Sox	L 1-2	✗	L	U
2026-05-18	vs White Sox	W 6-1	✓	W	P
2026-05-17	vs Padres	L 3-8	✗	L	O
2026-05-16	vs Padres	L 4-7	✗	L	O
2026-05-15	vs Padres	L 0-2	✗	L	U
2026-05-14	@ Astros	W 3-8	✓	W	O
2026-05-13	@ Astros	L 4-3	✗	L	U
2026-05-12	@ Astros	W 2-10	✓	W	O
2026-05-11	@ Astros	W 1-3	✓	W	U
2026-05-10	@ White Sox	L 2-1	✗	L	U
2026-05-09	@ White Sox	L 6-1	✗	L	U
2026-05-08	@ White Sox	W 8-12	✓	W	O
2026-05-06	vs Braves	W 3-1	✓	W	U
2026-05-05	vs Braves	L 2-3	✗	L	U
2026-05-04	vs Braves	W 5-4	✗	W	O
2026-05-03	vs Royals	L 1-4	✗	L	U
2026-05-02	vs Royals	L 2-3	✗	L	U
2026-05-01	vs Royals	L 6-7	✗	L	O
2026-04-29	@ Twins	W 3-5	✓	W	P
2026-04-28	@ Twins	W 1-7	✓	W	O
2026-04-27	@ Twins	L 11-4	✗	L	O
2026-04-26	@ Cardinals	W 2-3	✗	W	U
2026-04-25	@ Cardinals	W 9-11	✓	W	O
2026-04-24	@ Cardinals	W 2-3	✗	W	U
2026-04-22	vs Athletics	W 5-4	✗	W	O
2026-04-21	vs Athletics	L 2-5	✗	L	U
2026-04-20	vs Athletics	L 4-6	✗	L	O
2026-04-19	vs Rangers	W 5-2	✓	W	U
2026-04-18	vs Rangers	W 7-3	✓	W	O
2026-04-17	vs Rangers	L 0-5	✗	L	U
2026-04-16	@ Padres	L 5-2	✗	L	U
2026-04-15	@ Padres	L 7-6	✗	L	O
2026-04-14	@ Padres	L 4-1	✗	L	U
2026-04-13	vs Astros	W 6-2	✓	W	O
2026-04-12	vs Astros	W 6-1	✓	W	U
2026-04-11	vs Astros	W 8-7	✗	W	O
2026-04-10	vs Astros	W 9-6	✓	W	O
2026-04-08	@ Rangers	L 3-0	✗	L	U
2026-04-07	@ Rangers	L 3-2	✗	L	U
2026-04-06	@ Rangers	L 2-1	✗	L	U
2026-04-05	@ Angels	L 8-7	✗	L	O
2026-04-04	@ Angels	L 1-0	✗	L	U
2026-04-03	@ Angels	W 1-3	✓	W	U
2026-04-01	vs Yankees	L 3-5	✗	L	O
2026-03-31	vs Yankees	L 0-5	✗	L	U
2026-03-30	vs Yankees	W 2-1	✓	W	U
2026-03-29	vs Guardians	W 8-0	✓	W	O
2026-03-28	vs Guardians	L 5-6	✗	L	O
2026-03-27	vs Guardians	W 5-1	✓	W	U
2026-03-26	vs Guardians	L 4-6	✗	L	O