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Red Sox vs. Mariners Prediction: Boston Predicted to Win Wednesday's MLB Matchup [6/18/2025]

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Written by Jason Bevilacqua

Our expert prediction for Wednesday's Boston Red Sox vs Seattle Mariners matchup.

Boston Red Sox-Seattle Mariners Predictions and Game Preview.
T-Mobile Park sets the stage for the MLB matchup between the Boston Red Sox and Seattle Mariners this Wednesday.

MLB action continues on Wednesday at 4:10PM ET as the Boston Red Sox take on the Seattle Mariners at T-Mobile Park.

Luis Castillo (4-4, 3.29 ERA) will start for the Mariners, up against Garrett Crochet (6-4, 2.24 ERA) for the Red Sox.

Based on updated simulation results, Dimers' advanced MLB model (see Dimers Pro for full access) predicts the Red Sox as the most likely winner of today's game.

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

"With the latest updates and numerous other variables, we estimate the Red Sox' chance of winning at 51%, with the Mariners at 49%."

For expanded analysis of Wednesday's matchup, including best bets and picks, visit our interactive Red Sox vs. Mariners predictions page.

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Mariners vs. Red Sox Prediction: Who Will Win, Cover the Run Line?

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

Our famous predictive model gives the Red Sox a 51% chance of defeating the Mariners.

According to our model, the Mariners (+1.5) have a 64% chance of covering the run line, while the 6.5-run over/under has a 53% chance of going over.

Pre-Game Probabilities
Last Updated: 8:29PM, Jun 18
Moneyline
Over / Under
Run Line
Red Sox
Win %
51%
49%
Get the best bets with Dimers Pro
See Matchup
Mariners
Red Sox BOS
Win %
51%
49%
See Matchup
Mariners SEA
Garrett Crochet 6-4, 2.24 ERA
Luis Castillo 4-4, 3.29 ERA
Get the best bets with Dimers Pro

Red Sox vs. Mariners Odds [6/18/2025]

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

Bet Type Red Sox Mariners
Run Line -1.5 (+155) +1.5 (-176)
Moneyline -113 +108
Total o6.5 (-110) u6.5 (-102)

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

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Red Sox vs. Mariners Picks and Best Bets

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

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

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

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Calling Our Shot's Free ⚾️ Picks

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

Red Sox vs. Mariners Game-Day Updates and Essential Details

Wednesday's MLB game between the Mariners and Red Sox at T-Mobile Park is scheduled to start at 4:10PM ET.

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

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

Key MLB Betting Guides and Insights

Conclusion

We predict the Red Sox, with a 51% win probability, will likely beat the Mariners on Wednesday.

AI and automation have enhanced this article to quickly deliver accurate Red Sox 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.

Note: Clicking links to our partners may earn us a referral fee. Learn about how we review products and services.

More on MLB

Stay up-to-date with the latest MLB betting news and MLB parlay picks throughout the season. Plus, our World Series odds offer the most accurate predictions for the World Series, American League, National League and each division.

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Written by
Jason Bevilacqua
Head of Content and Communities

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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