Mariners vs. Astros prediction: Houston favored to win Sunday's MLB matchup [8/16/2026]
Get Seattle Mariners vs Houston Astros predictions for MLB Sunday.
The Houston Astros and Seattle Mariners are scheduled to meet in MLB action at Daikin Park on Sunday, starting at 7:20 PM ET.
Hunter Brown (3-2, 3.68 ERA) will get the ball for the Astros, while the Mariners are going with Bryan Woo (8-8, 4.15 ERA).
Dimers' advanced MLB model gives the Astros a slight edge with a 54.1% win probability over the Mariners.
This article offers a complete Mariners vs. Astros prediction, including best bets and picks.
Mariners vs. Astros prediction: Who will win and cover?
Our leading predictive model gives the Astros a 54.1% chance of beating the Mariners.
According to our model, the Mariners (+1.5) have a 63.1% chance of covering the run line, while the over/under total of 7.5 runs has a 57.9% chance of going over,.
Mariners vs. Astros odds [8/16/2026]
We have sourced the best MLB odds in America for this game, which are listed here:
- Run Line: Mariners +1.5 (-186) / Astros -1.5 (+182)
- Moneyline: Mariners +115, Astros -117
All odds are correct at the time of publication and are subject to change.
Mariners vs. Astros picks and best bet
After matching our predictions against the best current odds, we can reveal our picks for each of the major markets in this matchup. Plus, find our best bet for the game below:
- Run line: Astros -1.5 @ +182 via DraftKings
- Moneyline: Astros @ -117 via Polymarket
- Total: Over 7.5 @ -108 via Polymarket
According to our MLB best bets, the top play to make on this game is Over 7.5 total runs.
These picks are based on our probabilities matched against the implied probabilities from the sportsbook odds.
Mariners vs. Astros game-day updates and essential details
Sunday's MLB action between the Astros and Mariners at Daikin Park is scheduled to start at 7:20 PM ET.
- Who: Seattle Mariners vs. Houston Astros
- Date: Sunday, August 16, 2026
- Time: 7:20 PM ET/4:20PM PT
- Venue: Daikin Park
Conclusion
We predict the Astros, with a 54.1% win probability, will likely beat the Mariners in Sunday's MLB matchup.
Additional tools and information for betting safely can be found in our Responsible Gambling hub.
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Jason Bevilacqua, an expert in MLB, NHL, NBA, MLS, and NFL, delivers game previews, best bets, and props. Since 2020, as Head of Social and Community at Dimers, he has contributed insightful articles utilizing data-driven models and simulations.
