Mariners vs. Rays prediction: Why Seattle is favored to win Wednesday's MLB matchup [9/3/2025]

The Tampa Bay Rays and Seattle Mariners are scheduled to meet in MLB action at George M. Steinbrenner Field on Wednesday, starting at 7:35PM ET.

The Rays will start Adrian Houser (7-4, 2.85 ERA), up against George Kirby (8-6, 3.94 ERA) for the Mariners.

Based on updated simulation results, Dimers' proven MLB model predicts the Mariners as the most likely winner of today's game.

"Our team has simulated the outcome of Wednesday's Mariners-Rays game 10,000 times," said Dimers' Chief Content Officer, Nick Slade.

"With the latest updates and numerous other variables, we estimate the Mariners' chance of winning at 53%, with the Rays at 47%."

For further insights into Wednesday's matchup, including best bets and picks, visit our interactive Mariners vs. Rays predictions page.

Rays vs. Mariners prediction: Who will win, cover the run line?

Using trusted machine learning and data, we have simulated the result of Wednesday's MLB matchup between the Mariners and Rays 10,000 times as part of our MLB predictions coverage.

Our independent predictive model currently gives the Mariners a 53% chance of beating the Rays.

According to our model, the Rays (+1.5) have a 59% chance of covering the run line, while the over/under total of 8.5 runs has a 51% chance of going over.

Mariners vs. Rays odds [9/3/2025]

We have sourced the best MLB odds in America for this game, which are listed here:

Bet Type	Mariners	Rays
Run Line	-1.5 (+130)	+1.5 (-140)
Moneyline	-127	+115
Total	o8.5 (-110)	u8.5 (-105)

All odds are correct at the time of publication and are subject to change.

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Mariners vs. Rays picks and best bets

Our model's strongest edge in today's Mariners vs. Rays matchup is on the over/under.

Our expert predictions, aligned with the best odds, reveal the best MLB picks and MLB best bets for every game throughout the season.

Unlimited access to our full set of picks, including this one, is available via Dimers Pro.

Calling Our Shot's best bets video

Calling Our Shot produces daily MLB betting content, including the latest free picks featured below.

Mariners vs. Rays game-day updates and essential details

Wednesday's MLB matchup between the Rays and Mariners at George M. Steinbrenner Field is scheduled to commence at 7:35PM ET.

• Who: Seattle Mariners vs. Tampa Bay Rays
• Date: Wednesday, September 3, 2025
• Time: 7:35PM ET/4:35PM PT
• Venue: George M. Steinbrenner Field

Dimers.com's comprehensive preview of Wednesday's Mariners vs. Rays matchup includes our prediction, picks and the latest betting odds.

Before making any Mariners vs. Rays picks, be sure to check out the latest MLB predictions and betting advice from Dimers Pro.

Conclusion

We predict the Mariners, with a 53% win probability, will likely beat the Rays on Wednesday.

AI and automation have enhanced this article to quickly deliver accurate Mariners vs. Rays insights, with human oversight ensuring high editorial quality. Our predictions are drawn from up-to-date data to help you make informed decisions. For additional resources and advice on responsible gambling, please call 1-800-GAMBLER.

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