Blue Jays vs. Mariners prediction: Seattle favored to win Game 3 of ALCS [10/15/2025]

The Seattle Mariners will face the Toronto Blue Jays in Game 3 of the American League Championship Series at T-Mobile Park on Wednesday, beginning at 8:08PM ET.

The Mariners will start George Kirby (0-0, 2.70 ERA in 2025 postseason), while the Blue Jays will counter with Shane Bieber (0-0, 6.75 ERA).

Based on the latest simulations, Dimers' advanced MLB model projects the Mariners as the most likely winner of today's game.

"Our team has simulated the outcome of Wednesday's Blue Jays-Mariners 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 54%, with the Blue Jays at 46%."

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

Blue Jays vs. Mariners prediction: Who will win Game 3?

Using powerful machine learning and statistical analysis, we have simulated the outcome of Wednesday's MLB game between the Blue Jays and Mariners 10,000 times as part of our MLB predictions coverage.

Our independent predictive model currently gives the Mariners a 54% chance of defeating the Blue Jays.

According to our model, the Blue Jays (+1.5) have a 64% chance of covering the run line, while the 7-run over/under has a 65% chance of going over.

Blue Jays vs. Mariners Game 3 odds [10/15/2025]

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

Bet Type	Blue Jays	Mariners
Run Line	+1.5 (-194)	-1.5 (+165)
Moneyline	+111	-130
Total	o7 (-110)	u7 (-105)

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

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Blue Jays vs. Mariners picks and best bets for Game 3

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

Our expert predictions, matched against 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.

Blue Jays vs. Mariners game-day updates and essential details

Wednesday's MLB game between the Mariners and Blue Jays at T-Mobile Park is scheduled to begin at 8:08PM ET.

• Who: Toronto Blue Jays vs. Seattle Mariners
• Date: Wednesday, October 15, 2025
• Time: 8:08PM ET/5:08PM PT
• Venue: T-Mobile Park

Dimers' in-depth preview of Wednesday's Blue Jays vs. Mariners matchup includes our prediction, picks and the latest betting odds.

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

Conclusion

We predict the Mariners, with a 54% win probability, will likely beat the Blue Jays on Wednesday.

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

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