Mariners vs. Guardians prediction: Why Seattle is favored to win Sunday's MLB matchup [8/31/2025]

The Cleveland Guardians and Seattle Mariners are scheduled to meet in MLB action at Progressive Field on Sunday, starting at 1:40PM ET.

Tanner Bibee (9-10, 4.73 ERA) will be the starting pitcher for the Guardians, up against Bryce Miller (3-5, 5.98 ERA) for the Mariners.

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

"Using the most recent data, our experts ran 10,000 simulations of Sunday's Mariners-Guardians game," said Dimers' Chief Content Officer, Nick Slade.

"After accounting for recent updates and other variables, our prediction shows the Mariners with a win probability of 53%, while the Guardians have 47%."

For a closer look at Sunday's matchup, including best bets and picks, visit our interactive Mariners vs. Guardians predictions page.

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

Using innovative machine learning and data, we have simulated the result of Sunday's MLB game between the Mariners and Guardians 10,000 times as part of our MLB predictions coverage.

Our independent predictive model gives the Mariners a 53% chance of defeating the Guardians.

According to our model, the Guardians (+1.5) have a 61% chance of covering the run line, while the 8-run over/under has a 55% chance of going over.

Mariners vs. Guardians odds [8/31/2025]

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

Bet Type	Mariners	Guardians
Run Line	-1.5 (+150)	+1.5 (-176)
Moneyline	-110	-105
Total	o8 (-115)	u8 (-104)

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

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Mariners vs. Guardians picks and best bets

Our model's biggest edge in today's Mariners vs. Guardians matchup is on the run line.

Our expert predictions, matched against the latest 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 today

Calling Our Shot produces daily MLB betting content, including the predictions featured below.

Mariners vs. Guardians game-day updates and essential details

Sunday's MLB game between the Guardians and Mariners at Progressive Field is scheduled to begin at 1:40PM ET.

• Who: Seattle Mariners vs. Cleveland Guardians
• Date: Sunday, August 31, 2025
• Time: 1:40PM ET/10:40AM PT
• Venue: Progressive Field

Dimers.com's in-depth preview of Sunday's Mariners vs. Guardians matchup includes our prediction, picks and the latest betting odds.

Before making any Mariners vs. Guardians 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 Guardians on Sunday.

AI and automation have enhanced this article to quickly deliver accurate Mariners vs. Guardians 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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