Red Sox vs Rays Prediction, Odds, Moneyline, Spread & Over/Under for May 9

Odds updated as of 1:11 a.m.

Saturday's slate in the MLB includes a matchup between the Boston Red Sox and the Tampa Bay Rays.

Before you do any MLB betting on this matchup at FanDuel Sportsbook, here's what you need to know.

Red Sox vs Rays Game Info

• Boston Red Sox (17-22) vs. Tampa Bay Rays (25-13)
• Date: Saturday, May 9, 2026
• Time: 4:10 p.m. ET
• Venue: Fenway Park -- Boston, Massachusetts
• Coverage: NESN and Rays.TV

Red Sox vs Rays Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: BOS: (-152) | TB: (+128)
• Spread: BOS: -1.5 (+146) | TB: +1.5 (-176)
• Total: 7.5 -- Over: (-122) | Under: (+100)

Red Sox vs Rays Probable Starting Pitchers

Probable Pitchers: Payton Tolle (Red Sox) - 1-1, 2.04 ERA vs Nick Martínez (Rays) - 3-1, 1.71 ERA

This contest's pitching matchup is set, as the Red Sox will send Payton Tolle (1-1) to the mound, while Nick Martinez (3-1) will answer the bell for the Rays. Tolle and his team have not covered in any of the three games with a spread he's started this season. Tolle's team won his only start as a favorite this season. The Rays have a 6-1-0 ATS record in Martínez's seven starts with a set spread. The Rays have been the underdog on the moneyline in five of Martínez's starts this season, and they went 4-1 in those matchups.

Red Sox vs Rays Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Rays win (61.4%)

Red Sox vs Rays Moneyline

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

Red Sox vs Rays Spread

• The Rays are +1.5 on the spread (-176 to cover), and Boston is +146 to cover the runline.

Red Sox vs Rays Over/Under

• The Red Sox-Rays game on May 9 has been given an over/under of 7.5 runs. The over is set at -122 and the under at +100.

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Red Sox vs Rays Betting Trends

• The Red Sox have been victorious in 12, or 46.2%, of the 26 contests they have been chosen as favorites in this season.
• Boston has a record of 2-3 when favored by -152 or more this year.
• The Red Sox and their opponents have hit the over in 19 of their 39 games with a total set by oddsmakers this season.
• The Red Sox are 14-25-0 against the spread in their 39 games that had a posted line this season.
• The Rays are 10-7 in games they were the underdog on the moneyline (winning 58.8% of those games).
• Tampa Bay has played three times as a moneyline underdog with odds of +128 or longer, and claimed a victory in each game.
• In the 37 games oddsmakers have set an over/under for the Rays, they have combined with opponents to go over the total 19 times (19-18-0).
• The Rays have covered 62.2% of their games this season, going 23-14-0 ATS.

Red Sox Player Leaders

• Wilyer Abreu leads Boston with 43 hits and an OBP of .387, plus a team-best slugging percentage of .486. He's batting .303.
• Among all qualifying hitters in baseball, he is 22nd in batting average, 23rd in on-base percentage, and 38th in slugging.
• Abreu hopes to build on a two-game hitting streak in this matchup. During his last five outings he is batting .333 with two home runs, four walks and four RBIs.
• Willson Contreras is hitting .259 with four doubles, eight home runs and 20 walks. He's slugging .467 with an on-base percentage of .376.
• Among qualifiers, he is 71st in batting average, 33rd in on-base percentage and 45th in slugging percentage.
• Ceddanne Rafaela has 35 hits this season and has a slash line of .278/.345/.413.
• Rafaela brings a two-game hitting streak into this game. In his last five games he is batting .400 with two home runs, two walks and six RBIs.
• Jarren Duran is batting .194 with a .255 OBP and 18 RBI for Boston this season.
• Duran takes a two-game hitting streak into this game. During his last five outings he is batting .238 with a double, a home run, two walks and three RBIs.

Rays Player Leaders

• Junior Caminero has racked up 36 hits, a team-high for the Rays. He's batting .252 and slugging .483 with an on-base percentage of .341.
• Including all qualifying hitters, he ranks 85th in batting average, while his on-base percentage ranks 78th and he is 40th in slugging.
• Yandy Diaz's .397 on-base percentage leads his team. He has a batting average of .316 while slugging .471.
• Including all qualified players, his batting average puts him 11th, his on-base percentage is 14th, and he is 42nd in slugging.
• Jonathan Aranda is batting .265 with five doubles, seven home runs and 22 walks.
• Chandler Simpson paces his team with a .354 slugging percentage.

Red Sox vs Rays Head to Head

• 5/8/2026: 2-0 BOS (Favorite: Red Sox, Spread: -1.5, Total: 8.5, Favorite Moneyline: -132, Underdog Moneyline: +112)
• 5/7/2026: 8-4 TB (Favorite: Red Sox, Spread: -1.5, Total: 8.5, Favorite Moneyline: -116, Underdog Moneyline: -102)
• 9/21/2025: 7-3 TB (Favorite: Red Sox, Spread: -1.5, Total: 7.5, Favorite Moneyline: -130, Underdog Moneyline: +110)
• 9/20/2025: 6-3 BOS (Favorite: Rays, Spread: -1.5, Total: 8, Favorite Moneyline: -112, Underdog Moneyline: -104)
• 9/19/2025: 11-7 BOS (Favorite: Red Sox, Spread: -1.5, Total: 6.5, Favorite Moneyline: -138, Underdog Moneyline: +118)
• 7/13/2025: 4-1 BOS (Favorite: Red Sox, Spread: -1.5, Total: 8.5, Favorite Moneyline: -120, Underdog Moneyline: +102)
• 7/12/2025: 1-0 BOS (Favorite: Red Sox, Spread: -1.5, Total: 8, Favorite Moneyline: -174, Underdog Moneyline: +146)
• 7/11/2025: 5-4 BOS (Favorite: Red Sox, Spread: -1.5, Total: 9, Favorite Moneyline: -112, Underdog Moneyline: -104)
• 7/10/2025: 4-3 BOS (Favorite: Red Sox, Spread: -1.5, Total: 9, Favorite Moneyline: -116, Underdog Moneyline: -102)
• 6/11/2025: 4-3 BOS (Favorite: Red Sox, Spread: -1.5, Total: 9.5, Favorite Moneyline: -124, Underdog Moneyline: +106)

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