Jul 22, 2026
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Read Article Mariners vs. Rays prediction: Why Tampa Bay is favored to win Sunday's MLB matchup [7/12/2026]
Updated: | First published:
Written by Jason Bevilacqua, Head of Content and Communities
Get Seattle Mariners vs Tampa Bay Rays predictions for MLB Sunday.
The Tampa Bay Rays and Seattle Mariners will meet in MLB action at Tropicana Field on Sunday, starting at 1:40 PM ET.
Ian Seymour (6-1, 4.11 ERA) will start on the mound for the Rays, while the Mariners have opted for Emerson Hancock (6-4, 3.22 ERA).
Based on updated simulation results, Dimers' advanced MLB model gives the Rays a slight edge with a 53.7% win probability over the Mariners.
This article offers further insights into Sunday's Mariners vs. Rays matchup, including best bets and picks.
Mariners vs. Rays prediction: Who will win and cover?
Using trusted machine learning and data, we have simulated the result of Sunday's MLB matchup between the Mariners and Rays, forming part of our MLB predictions coverage.
Our leading predictive model gives the Rays a 53.7% chance of beating the Mariners.
According to our model, the Mariners (+1.5) have a 63.2% 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. Rays odds [7/12/2026]
We have sourced the best MLB odds in America for this game, which are listed here:
| Bet Type | Mariners | Rays |
|---|---|---|
| Run Line | +1.5 (-160) | -1.5 (+156) |
| Moneyline | +138 | -141 |
| Total | o7.5 (-115) | u7.5 (+117) |
All odds are correct at the time of publication and are subject to change.
Mariners vs. Rays picks and best bet
After matching our predictions against the best current odds, we can reveal our picks for each of the major markets. Plus, find our best bet for the game below:
| Bet Type | Pick | Bet Now |
|---|---|---|
| Run Line | Mariners +1.5 | novig-160 |
| Moneyline | Mariners | novig+138 |
| Total | Over 7.5 | novig-115 |
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. Rays game-day updates and essential details
Sunday's MLB action between the Rays and Mariners at Tropicana Field is scheduled to begin at 1:40 PM ET.
- Who: Seattle Mariners vs. Tampa Bay Rays
- Date: Sunday, July 12, 2026
- Time: 1:40 PM ET/10:40AM PT
- Venue: Tropicana Field
Conclusion
We predict the Rays, with a 53.7% 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.
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.
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