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Read Article Rays vs. Red Sox prediction: Boston favored to win Saturday's MLB matchup [5/9/2026]
Updated: | First published:
Written by Jason Bevilacqua, Head of Content and Communities
Get Tampa Bay Rays vs Boston Red Sox predictions for MLB Saturday.
The Boston Red Sox will take on the Tampa Bay Rays in MLB action at Fenway Park on Saturday, commencing at 4:10 PM ET.
Payton Tolle (1-1, 2.04 ERA) will be the starting pitcher for the Red Sox, while the Rays are going with Nick Martinez (3-1, 1.71 ERA).
Based on updated simulation results, Dimers' proven MLB model predicts the Red Sox as the most likely winner of the Rays vs. Red Sox game.
This article offers a closer look at Saturday's matchup, including best bets and picks.
Rays vs. Red Sox prediction: Who will win and cover?
Using trusted machine learning and data, we have simulated the outcome of Saturday's MLB matchup between the Rays and Red Sox, forming part of our MLB predictions coverage.
Our leading predictive model gives the Red Sox a 57% chance of beating the Rays.
According to our model, the Rays (+1.5) have a 60% chance of covering the run line, while the over/under total of 7.5 runs has a 54% chance of going over.
Rays vs. Red Sox odds [5/9/2026]
We have sourced the best MLB odds in America for this game, which are listed here:
| Bet Type | Rays | Red Sox |
|---|---|---|
| Run Line | +1.5 (-182) | -1.5 (+152) |
| Moneyline | +122 | -143 |
| Total | o7.5 (-110) | u7.5 (-106) |
All odds are correct at the time of publication and are subject to change.
Rays vs. Red Sox picks and best bet
After matching our predictions against the best available odds, we can reveal our picks for each of the major markets. Plus, find our best bet for the game below:
| Bet Type | Pick | Bet Now |
|---|---|---|
| Run Line | Red Sox -1.5 | +152 |
| Moneyline | Red Sox | -143 |
| Total | Over 7.5 | -110 |
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 sportsbook odds.
Rays vs. Red Sox game-day updates and essential details
Saturday's MLB game between the Red Sox and Rays at Fenway Park is scheduled to start at 4:10 PM ET.
- Who: Tampa Bay Rays vs. Boston Red Sox
- Date: Saturday, May 9, 2026
- Time: 4:10 PM ET/1:10PM PT
- Venue: Fenway Park
Conclusion
We predict the Red Sox, with a 57% win probability, will likely beat the Rays in Saturday's MLB matchup.
Additional tools and information for betting safely can be found in our Responsible Gambling hub.
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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