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Read Article Yankees vs. Red Sox prediction: Boston favored to win Tuesday's MLB matchup [4/21/2026]
Updated: | First published:
Written by Jason Bevilacqua, Head of Content and Communities
Get New York Yankees vs Boston Red Sox predictions for MLB Tuesday.
The Boston Red Sox and New York Yankees will meet in MLB action at Fenway Park on Tuesday, starting at 6:45 PM ET.
The Red Sox will start Connelly Early (1-0, 2.29 ERA), pitting him against Luis Gil (0-1, 7.00 ERA) for the Yankees.
Based on the latest simulations, Dimers' advanced MLB model projects the Red Sox as the most likely winner of the Yankees vs. Red Sox game.
This article offers a closer look at Tuesday's matchup, including best bets and picks.
Yankees vs. Red Sox prediction: Who will win and cover?
Using innovative machine learning and data, we have simulated the outcome of Tuesday's MLB game between the Yankees and Red Sox, forming part of our MLB predictions coverage.
Our leading predictive model currently gives the Red Sox a 55% chance of defeating the Yankees.
According to our model, the Yankees (+1.5) have a 62% chance of covering the run line, while the 8-run over/under has a 53% chance of going over.
Yankees vs. Red Sox odds [4/21/2026]
We have researched the best MLB odds in America for this game, which are listed here:
| Bet Type | Yankees | Red Sox |
|---|---|---|
| Run Line | +1.5 (-205) | -1.5 (+168) |
| Moneyline | +104 | -120 |
| Total | o8 (-115) | u8 (-105) |
All odds are correct at the time of publication and are subject to change.
Yankees vs. Red Sox picks and best bet
After matching our predictions against the best current 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 | +168 |
| Moneyline | Red Sox | -120 |
| Total | Over 8 | -115 |
According to our best MLB bets, the top play to make on this game is Red Sox to win.
These picks are based on our probabilities matched against the implied probabilities from the sportsbook odds.
Yankees vs. Red Sox game-day updates and essential details
Tuesday's MLB game between the Red Sox and Yankees at Fenway Park is scheduled to begin at 6:45 PM ET.
- Who: New York Yankees vs. Boston Red Sox
- Date: Tuesday, April 21, 2026
- Time: 6:45 PM ET/3:45PM PT
- Venue: Fenway Park
Conclusion
We predict the Red Sox, with a 55% win probability, will likely beat the Yankees in Tuesday'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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