Sep 22, 2026
Nationals vs. Tigers prediction: Detroit favored to win Tuesday's MLB matchup [9/22/2026]
Read Article Astros vs. Mariners prediction: Seattle favored to win Tuesday's MLB matchup [9/22/2026]
Updated: | First published:
Written by Jason Bevilacqua, Head of Content and Communities
Dimers' simulation model projects a 57.5% win probability for the Mariners at T-Mobile Park.
The Seattle Mariners and Houston Astros will meet in MLB action at T-Mobile Park on Tuesday, starting at 9:40 PM ET.
The Mariners will start Logan Gilbert (12-10, 3.69 ERA), while the Astros will counter with Cristian Javier (2-6, 5.31 ERA).
Dimers' proven MLB model projects the Mariners as the most likely winner in this Astros vs. Mariners prediction.
This article offers further insights into Tuesday's matchup, including best bets and picks.
For more, dive into Logan Gilbert's pitching projections.
Astros vs. Mariners prediction and odds
Using powerful machine learning and data analysis, we have re-simulated the outcome of Tuesday's MLB matchup between the Astros and Mariners, forming part of our MLB predictions coverage.
Our leading predictive model gives the Mariners a 57.5% chance of defeating the Astros. According to our model, the Astros (+1.5) have a 60.0% chance of covering the run line, while the 7.5-run over/under has a 51.7% chance of going over.
Latest betting odds
We have sourced the best MLB odds in America for this game, which are listed here:
- Run Line: Astros +1.5 (-170) / Mariners -1.5 (+170)
- Moneyline: Astros +122, Mariners -125
- Total: Over/Under 7.5 (+117/-122)
All odds are correct at the time of publication and are subject to change.
Model 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: Mariners -1.5 @ 37¢ via Novig
- Moneyline: Mariners @ 56¢ via Novig
- Total: Over 7.5 @ 46¢ via Novig
According to our best MLB 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 current available odds.
Game info & first pitch details
Tuesday's MLB action between the Mariners and Astros at T-Mobile Park is scheduled to start at 9:40 PM ET.
- Who: Houston Astros vs. Seattle Mariners
- Date: Tuesday, September 22, 2026
- Time: 9:40 PM ET/6:40PM PT
- Venue: T-Mobile Park
Conclusion
We predict the Mariners, with a 57.5% win probability, will likely beat the Astros in Tuesday's MLB matchup.
Additional tools and information for betting safely can be found in our Responsible Gambling hub.
This article's predictions and probabilities are generated by Dimers' proprietary MLB prediction model. Our editorial team reviews the resulting content for accuracy and presentation before publication.
Every Bet, Every Game, Every Day Every plan unlocks every model, tool and insight, only the billing term changes.
MOST FLEXIBLE
Monthly billed monthly
$29.99
Month to month Pay as you go RECOMMENDED
6 Months one payment
$119.99 $149.99
6 months $20 per month Save $30.00 · 20% LIMITED TIME OFFER BEST VALUE
Annual first year
$169.99 $199.99
12 months $14.17 per month Save $30.00 · 15% LIMITED TIME OFFER Every plan includes
Full site access
iOS & Android app
AI bet assistant
Unlimited picks & predictions
Unlimited best bets & props
Unlimited player projections
Private Discord community
Cancel or pause anytime
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.
Advertiser disclosure
