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Read Article Athletics vs. Guardians prediction: Why Cleveland is favored to win Sunday's MLB matchup [9/20/2026]
Updated: | First published:
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Written by Jason Bevilacqua, Head of Content and Communities
Dimers' simulation model projects a 62.6% win probability for the Guardians at Progressive Field.
The Cleveland Guardians will face the Athletics in MLB action at Progressive Field on Sunday, commencing at 1:40 PM ET.
Gavin Williams (13-8, 3.78 ERA) will start on the mound for the Guardians, while the Athletics have opted for Jack Perkins (3-11, 6.14 ERA).
Dimers' proven MLB model projects the Guardians as the most likely winner in this Athletics vs. Guardians prediction.
This article offers an expanded analysis of Sunday's matchup, including best bets and picks.
For more, dive into Gavin Williams' pitching projections.
A's vs. Guardians prediction and odds
Using innovative machine learning and data analysis, we have re-simulated the result of Sunday's MLB game between the Athletics and Guardians, forming part of our MLB predictions coverage.
Our independent predictive model gives the Guardians a 62.6% chance of defeating the Athletics. According to our model, the Athletics (+1.5) have a 54.6% chance of covering the run line, while the over/under total of 7.5 runs has a 55.0% chance of going over.
Latest betting odds
We have researched the best MLB odds in America for this game, which are listed here:
- Run Line: Athletics +1.5 (-104) / Guardians -1.5 (+104)
- Moneyline: Athletics +217, Guardians -223
- Total: Over/Under 7.5 (+111/-113)
All odds are correct at the time of publication and are subject to change.
Model 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: Athletics +1.5 @ 51¢ via Polymarket
- Moneyline: Athletics @ 32¢ via Novig
- Total: Over 7.5 @ 47¢ via Novig
According to our best MLB 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 current available odds.
Game info & first pitch details
Sunday's MLB game between the Guardians and Athletics at Progressive Field is scheduled to commence at 1:40 PM ET.
- Who: Athletics vs. Cleveland Guardians
- Date: Sunday, September 20, 2026
- Time: 1:40 PM ET/10:40AM PT
- Venue: Progressive Field
Conclusion
We predict the Guardians, with a 62.6% win probability, will likely beat the Athletics in Sunday'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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