The Seattle Mariners are 38-66-0 ATS as Favorites in 2026

MLBAmerican • AL WestUpdated 2 days ago

The Seattle Mariners are 38-66-0 as favorite in 2026, a 36.54% rate with -14.7% ROI on flat $100 bets at closing odds. Closing lines from DraftKings, FanDuel, and BetMGM, graded against official MLB box scores.

See methodology.

Favorite ATS

38-66-0

Win %

36.54%

ROI

-14.7%

Games

104

Favorite ML

53-51-0

Win %

50.96%

ROI

-13.57%

Games

104

Mariners Monthly Performance

-18.5%49-81 · -24.1u

+3.8%

-20.6%

-8.9%

-13.3%

-33.5%

-25.5%

Mar
3-3

Apr
9-17

May
11-17

Jun
10-17

Jul
8-16

Aug
8-11

Home / Away as Favorite ATS

Home

20-32-0

38.46%-8.87%

Away

18-34-0

34.62%-20.53%

Recent Games (2026)

Date	Opponent	Score	ATS	ML	O/U
2026-08-22	vs Cubs	W 5-4	✓	W	O
2026-08-21	vs Cubs	W 6-5	✓	W	O
2026-08-20	@ Brewers	L 7-4	✗	L	O
2026-08-19	@ Brewers	W 5-7	✓	W	O
2026-08-18	@ Brewers	L 22-0	✗	L	O
2026-08-16	@ Astros	W 2-3	✓	W	U
2026-08-15	@ Astros	W 5-10	✓	W	O
2026-08-14	@ Astros	L 10-7	✗	L	O
2026-08-13	@ Yankees	W 0-1	✓	W	U
2026-08-12	@ Yankees	L 10-5	✗	L	O

Frequently Asked Questions

What is the Seattle Mariners as favorite in 2026?

The Seattle Mariners are 38-66-0 (36.54%) as favorite in 2026 on DraftKings, with -14.7% ROI.

What is the Seattle Mariners home vs away as favorite?

Home: 20-32-0 (-8.87% ROI). Away: 18-34-0 (-20.53% ROI).

More Mariners Stats (2026)

Overview ATS Record Moneyline Record Over/Under Record Home Record Away Record As Underdog

Compare As Favorite

Record as Favorite for the Seattle Mariners in the 2026 season on LineTerminal. Data sourced from DraftKings closing lines. Updated daily after games are graded. Past performance does not guarantee future results. LineTerminal offers advanced system-building tools to research Seattle Mariners betting trends across 80+ filters and 5+ years of data.