Seattle Mariners Lead Houston Astros 7-1 in Head-to-Head Matchups (2026)

MLB2-6-0 ATS (25%)

The Houston Astros are 1-7 against the Seattle Mariners in 2026 in head-to-head matchups, going 2-6-0 ATS (25% cover rate) with -59.17% ROI. Games average 9.9 total points. Closing lines from DraftKings, FanDuel, and BetMGM, graded against official MLB box scores.

See methodology.

Astros vs Mariners Betting Record — 2026

Against the Spread
2-6-0
Win %
25%
ROI
-59.17%
Units
-4.7
Moneyline
1-7-0
Win %
12.5%
ROI
-74%
Units
-5.9
Over Rate
5-3-0
Win %
62.5%
ROI
+22.78%
Units
+1.8

From the Other Side — Mariners vs Astros

Against the Spread
6-2-0
Win %
75%
ROI
+64.83%
Units
+5.2
Moneyline
7-1-0
Win %
87.5%
ROI
+43.03%
Units
+3.4
Over Rate
5-3-0
Win %
62.5%
ROI
+22.78%
Units
+1.8

Venue Splits

Astros Home
1-3-0 ATS
25% • -58.22%
1-3-0 ML (25%)
Mariners Home
3-1-0 ATS
75% • +71.5%
4-0-0 ML (100%)

Scoring Averages

Astros
3.3
PPG
6.6
allowed
Total
9.9
Avg
8
games
Mariners
6.6
PPG
3.3
allowed

Recent Matchups (2026)

DateScoreATSMLO/U
05/14L 3-8LO
05/13W 4-3WU
05/12L 2-10LO
05/11L 1-3LU
04/13L 6-2LO
04/12L 6-1LU
04/11L 8-7LO
04/10L 9-6LO

Frequently Asked Questions

What is the Houston Astros vs Seattle Mariners 2026 record?
The Houston Astros are 1-7 against the Seattle Mariners in 2026 in head-to-head matchups.
What is the Houston Astros ATS record vs the Seattle Mariners?
The Houston Astros are 2-6-0 against the spread vs the Seattle Mariners in 2026 on DraftKings, with -59.17% ROI.
Do Houston Astros vs Seattle Mariners games go over or under?
Houston Astros vs Seattle Mariners games average 9.9 total points in 2026. The Over has hit 62.5% of the time.

More Astros Matchups

Head-to-head betting record for Houston Astros vs Seattle Mariners in the 2026 season on LineTerminal. The Astros are 1-7 straight up against the Mariners and 2-6-0 against the spread (25% cover rate, -59.17% ROI) on DraftKings. Data sourced from DraftKings closing lines. Updated daily after games are graded. Past performance does not guarantee future results.

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