Sep 1, 2026
Mets vs. Rays prediction: Why Tampa Bay is favored to win Tuesday's MLB matchup [9/1/2026]
Read Article Mariners vs. Red Sox prediction: Boston favored to win Tuesday's MLB matchup [9/1/2026]
Updated: | First published:
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Written by Jason Bevilacqua, Head of Content and Communities
Get Seattle Mariners vs Boston Red Sox predictions for MLB Tuesday.
MLB action continues on Tuesday at 6:45 PM ET as the Seattle Mariners take on the Boston Red Sox at Fenway Park.
Sonny Gray (16-4, 2.82 ERA) will start on the mound for the Red Sox, up against Bryan Woo (9-9, 4.36 ERA) for the Mariners.
Dimers' advanced MLB model gives the Red Sox a slight edge with a 51.5% win probability over the Mariners.
This article offers a complete Mariners vs. Red Sox prediction, including best bets and picks.
For more, dive into Sonny Gray's pitching projections.
Mariners vs. Red Sox prediction: Who will win and cover?
Using trusted machine learning and data, we have simulated the outcome of Tuesday's MLB game between the Mariners and Red Sox, forming part of our MLB predictions coverage.
Our leading predictive model currently gives the Red Sox a 51.5% chance of beating the Mariners.
According to our model, the Mariners (+1.5) have a 63.6% chance of covering the run line, while the over/under total of 7.5 runs has a 55.5% chance of going over.
Mariners vs. Red Sox odds [9/1/2026]
We have researched the best MLB odds in America for this game, which are listed here:
- Run Line: Mariners +1.5 (-190) / Red Sox -1.5 (+170)
- Moneyline: Mariners +113, Red Sox -111
All odds are correct at the time of publication and are subject to change.
Mariners vs. Red Sox picks and best bet
After matching our probabilities against the best available odds, we can reveal our picks for each of the major markets in this matchup. Plus, find our best bet for the game below:
- Run line: Red Sox -1.5 @ +170 via DraftKings
- Moneyline: Mariners @ +113 via Polymarket
- Total: Over 7.5 @ +108 via Polymarket
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. Red Sox game-day updates and essential details
Tuesday's MLB action between the Red Sox and Mariners at Fenway Park is scheduled to begin at 6:45 PM ET.
- Who: Seattle Mariners vs. Boston Red Sox
- Date: Tuesday, September 1, 2026
- Time: 6:45 PM ET/3:45PM PT
- Venue: Fenway Park
Conclusion
We predict the Red Sox, with a 51.5% win probability, will likely beat the Mariners in Tuesday's MLB matchup.
Additional tools and information for betting safely can be found in our Responsible Gambling hub.
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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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