Sep 22, 2026
Angels vs. Athletics prediction: Why Athletics is favored to win Tuesday's MLB matchup [9/22/2026]
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 56.8% win probability for the Red Sox at Fenway Park.
The Boston Red Sox will square off with the Cleveland Guardians in MLB action at Fenway Park on Tuesday, beginning at 6:45 PM ET.
Payton Tolle (9-6, 3.02 ERA) will be the starting pitcher for the Red Sox, pitting him against Parker Messick (12-9, 2.57 ERA) for the Guardians.
Dimers' advanced MLB model projects the Red Sox as the most likely winner in this Guardians vs. Red Sox prediction.
This article offers further insights into 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 powerful machine learning and data analysis, we have re-simulated the outcome of Tuesday's MLB game between the Guardians and Red Sox, forming part of our MLB predictions coverage.
Our independent predictive model currently gives the Red Sox a 56.8% chance of beating the Guardians. According to our model, the Guardians (+1.5) have a 61.5% chance of covering the run line, while the over/under total of 6.5 runs has a 58.9% 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 -117
- Total: Over/Under 6.5 (-108/+105)
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 current 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 @ 54¢ via Polymarket
- 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 begin 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 56.8% 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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