Astros vs. Rays prediction: Why Tampa Bay is favored to win Saturday's MLB matchup [9/12/2026]
Dimers' simulation model projects a 52.2% win probability for the Rays at Tropicana Field.

The Tampa Bay Rays and Houston Astros will meet in MLB action at Tropicana Field on Saturday, starting at 6:10 PM ET.
The Rays will start Ian Seymour (9-6, 4.33 ERA), pitting him against Peter Lambert (8-8, 3.67 ERA) for the Astros.
Dimers' proven MLB model gives the Rays a slight edge with a 52.2% win probability over the Astros.
This article offers a complete Astros vs. Rays prediction, including best bets and picks.
Astros vs. Rays prediction and odds
Our famous predictive model gives the Rays a 52.2% chance of beating the Astros. According to our model, the Astros (+1.5) have a 63.6% chance of covering the run line, while the over/under total of 7.5 runs has a 56.1% 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 (-160) / Rays -1.5 (+156)
- Moneyline: Astros +133, Rays -135
- Total: Over/Under 7.5 (-115/+111)
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: Astros +1.5 @ 62¢ via Novig
- Moneyline: Astros @ 43¢ via Novig
- Total: Over 7.5 @ 53¢ via Novig
According to our MLB best bets, the top play to make on this game is Astros to win.
These picks are based on our probabilities matched against the implied probabilities from the current available odds.
Game info & first pitch details
Saturday's MLB matchup between the Rays and Astros at Tropicana Field is scheduled to start at 6:10 PM ET.
- Who: Houston Astros vs. Tampa Bay Rays
- Date: Saturday, September 12, 2026
- Time: 6:10 PM ET/3:10PM PT
- Venue: Tropicana Field
Conclusion
We predict the Rays, with a 52.2% win probability, will likely beat the Astros in Saturday'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.




