Red Sox vs Astros Prediction, Odds, Moneyline, Spread & Over/Under for May 3

Odds updated as of 12:12 a.m.

The MLB slate on Sunday includes the Boston Red Sox taking on the Houston Astros.

All the info you need to make smart wagers on this matchup at FanDuel Sportsbook can be found below. Check out all of the latest MLB betting lines here.

Red Sox vs Astros Game Info

• Boston Red Sox (13-20) vs. Houston Astros (13-21)
• Date: Sunday, May 3, 2026
• Time: 1:35 p.m. ET
• Venue: Fenway Park -- Boston, Massachusetts
• Coverage: NESN and SCHN

Red Sox vs Astros Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: BOS: (-152) | HOU: (+128)
• Spread: BOS: -1.5 (+140) | HOU: +1.5 (-170)
• Total: 8.5 -- Over: (-115) | Under: (-105)

Red Sox vs Astros Probable Starting Pitchers

Probable Pitchers: Ranger Suarez (Red Sox) - 2-2, 3.09 ERA vs Cody Bolton (Astros) - 0-1, 5.79 ERA

This contest's pitching matchup is set, as the Red Sox will send Ranger Suarez (2-2) to the mound, while Cody Bolton (0-1) will take the ball for the Astros. When Suarez starts, his team is 2-4-0 against the spread this season. Suarez's team is 2-2 this season when he starts and they are the moneyline favorite. Bolton has started two games with set spreads, and the Astros failed to cover in both opportunities. The Astros were named the moneyline underdog for one Bolton start this season -- they lost.

Red Sox vs Astros Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Red Sox win (56.2%)

Red Sox vs Astros Moneyline

• Houston is the underdog, +128 on the moneyline, while Boston is a -152 favorite at home.

Red Sox vs Astros Spread

• The Red Sox are favored by 1.5 runs at home against the Astros. The Red Sox are +140 to cover the spread, while the Astros are -170.

Red Sox vs Astros Over/Under

• The over/under for Red Sox-Astros on May 3 is 8.5. The over is -115, and the under is -105.

Bet on Boston Red Sox vs. Houston Astros on FanDuel today!

Red Sox vs Astros Betting Trends

• The Red Sox have been victorious in 10, or 45.5%, of the 22 contests they have been chosen as favorites in this season.
• Boston has a record of 2-2 in contests when sportsbooks favor them by -152 or more on the moneyline.
• The Red Sox and their opponents have gone over the total this season in 16 of their 33 opportunities.
• In 33 games with a line this season, the Red Sox have a mark of 11-22-0 against the spread.
• The Astros have been the underdog on the moneyline 17 total times this season. They've finished 7-10 in those games.
• Houston has a 1-5 record (winning just 16.7% of its games) when playing as a moneyline underdog of +128 or longer.
• The Astros have combined with opponents to hit the over on the total 23 times this season for a 23-10-1 record against the over/under.
• The Astros have a 13-21-0 record ATS this season.

Red Sox Player Leaders

• Wilyer Abreu has an OPS of .849, fueled by an OBP of .378 to go with a slugging percentage of .471. He has a .306 batting average, as well.
• Among qualified hitters in MLB, he is 23rd in batting average, 31st in on-base percentage, and 48th in slugging.
• Willson Contreras leads Boston with 30 hits. He is batting .263 this season and has 10 extra-base hits. He's also slugging .474 with an on-base percentage of .372.
• Among all qualifying players, he ranks 61st in batting average, 41st in on-base percentage and 46th in slugging percentage.
• Contreras takes a seven-game streak with at least one hit into this contest. During his last 10 games he is batting .243 with a double, three home runs, three walks and nine RBIs.
• Caleb Durbin has 18 hits this season and has a slash line of .171/.263/.257.
• Jarren Duran has two home runs, 14 RBI and a batting average of .176 this season.
• Duran has safely hit in two straight games. In his last five games he is batting .111 with a home run, a walk and three RBIs.

Astros Player Leaders

• Yordan Alvarez has 42 hits with a .438 on-base percentage and a .685 slugging percentage, all club-bests for the Astros. He's batting .331.
• Including all the qualifying hitters in the big leagues, he is seventh in batting average, second in on-base percentage and second in slugging percentage.
• Christian Walker is hitting .309 with nine doubles, eight home runs and 14 walks. He's slugging .577 with an on-base percentage of .386.
• Including all qualified players, his batting average puts him 21st, his on-base percentage is 26th, and he is ninth in slugging.
• Carlos Correa is hitting .296 with eight doubles, three home runs and 16 walks.
• Jose Altuve is batting .248 with eight doubles, three home runs and 17 walks.

Red Sox vs Astros Head to Head

• 5/2/2026: 6-3 HOU (Favorite: Red Sox, Spread: -1.5, Total: 9, Favorite Moneyline: -142, Underdog Moneyline: +120)
• 5/1/2026: 3-1 BOS (Favorite: Red Sox, Spread: -1.5, Total: 9, Favorite Moneyline: -120, Underdog Moneyline: +102)
• 4/1/2026: 6-4 HOU (Favorite: Red Sox, Spread: -1.5, Total: 7, Favorite Moneyline: -148, Underdog Moneyline: +126)
• 3/31/2026: 9-2 HOU (Favorite: Astros, Spread: -1.5, Total: 7.5, Favorite Moneyline: -144, Underdog Moneyline: +122)
• 3/30/2026: 8-1 HOU (Favorite: Red Sox, Spread: -1.5, Total: 8.5, Favorite Moneyline: -124, Underdog Moneyline: +106)
• 8/13/2025: 4-1 HOU (Favorite: Astros, Spread: -1.5, Total: 8, Favorite Moneyline: -156, Underdog Moneyline: +132)
• 8/12/2025: 14-1 BOS (Favorite: Astros, Spread: -1.5, Total: 8.5, Favorite Moneyline: -108, Underdog Moneyline: -108)
• 8/11/2025: 7-6 HOU (Favorite: Red Sox, Spread: -1.5, Total: 7.5, Favorite Moneyline: -162, Underdog Moneyline: +136)
• 8/3/2025: 6-1 BOS (Favorite: Astros, Spread: -1.5, Total: 8, Favorite Moneyline: -126, Underdog Moneyline: +108)
• 8/2/2025: 7-3 BOS (Favorite: Red Sox, Spread: -1.5, Total: 9.5, Favorite Moneyline: -134, Underdog Moneyline: +116)

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