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Read Article Guardians vs. Red Sox prediction: Boston favored to win Tuesday's MLB matchup [9/22/2026]
Updated: | First published:
Written by Jason Bevilacqua, Head of Content and Communities
Dimers' simulation model projects a 56.1% win probability for the Red Sox at Fenway Park.
MLB action continues on Tuesday at 6:45 PM ET as the Cleveland Guardians lock horns with the Boston Red Sox at Fenway Park.
Payton Tolle (9-6, 3.02 ERA) will get the ball for the Red Sox, pitting him against Parker Messick (12-9, 2.57 ERA) for the Guardians.
Dimers' proven MLB model projects the Red Sox as the most likely winner in this Guardians vs. Red Sox prediction.
This article offers a closer look at Tuesday's matchup, including best bets and picks.
For more, dive into Parker Messick's projected pitching stats.
Guardians vs. Red Sox prediction and odds
Using trusted machine learning and data analysis, we have re-simulated the result of Tuesday's MLB matchup between the Guardians and Red Sox, forming part of our MLB predictions coverage.
Our independent predictive model gives the Red Sox a 56.1% chance of defeating the Guardians. According to our model, the Guardians (+1.5) have a 61.8% chance of covering the run line, while the over/under total of 6.5 runs has a 61.0% chance of going over.
Latest betting odds
We have sourced the best MLB odds in America for this game, which are listed here:
- Run Line: Guardians +1.5 (-194) / Red Sox -1.5 (+186)
- Moneyline: Guardians +117, Red Sox -120
- Total: Over/Under 6.5 (-108/+113)
All odds are correct at the time of publication and are subject to change.
Model picks and best bet
After matching our predictions 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 @ 35¢ via Novig
- Moneyline: Red Sox @ 55¢ via Novig
- Total: Over 6.5 @ 52¢ via Novig
According to our best MLB bets, the top play to make on this game is Over 6.5 total runs.
These picks are based on our probabilities matched against the implied probabilities from the current available odds.
Game info & first pitch details
Tuesday's MLB matchup between the Red Sox and Guardians at Fenway Park is scheduled to start at 6:45 PM ET.
- Who: Cleveland Guardians vs. Boston Red Sox
- Date: Tuesday, September 22, 2026
- Time: 6:45 PM ET/3:45PM PT
- Venue: Fenway Park
Conclusion
We predict the Red Sox, with a 56.1% win probability, will likely beat the Guardians in Tuesday's MLB matchup.
Additional tools and information for betting safely can be found in our Responsible Gambling hub.
This article's predictions and probabilities are generated by Dimers' proprietary MLB prediction model. Our editorial team reviews the resulting content for accuracy and presentation before publication.
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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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