Red Sox vs Guardians Prediction, Odds, Moneyline, Spread & Over/Under for May 31

Odds updated as of 5:12 a.m.

MLB action on Sunday includes the Boston Red Sox playing the Cleveland Guardians.

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

Red Sox vs Guardians Game Info

• Boston Red Sox (24-33) vs. Cleveland Guardians (34-26)
• Date: Sunday, May 31, 2026
• Time: 1:40 p.m. ET
• Venue: Progressive Field -- Cleveland, Ohio
• Coverage: CleGuardians.TV and NESN

Red Sox vs Guardians Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: BOS: (-116) | CLE: (-102)
• Spread: BOS: -1.5 (+152) | CLE: +1.5 (-184)
• Total: 7.5 -- Over: (-105) | Under: (-115)

Red Sox vs Guardians Probable Starting Pitchers

Probable Pitchers: Ranger Suarez (Red Sox) - 2-3, 3.02 ERA vs Tanner Bibee (Guardians) - 0-7, 4.57 ERA

The probable starters are Ranger Suarez (2-3) for the Red Sox and Tanner Bibee (0-7) for the Guardians. Suarez's team is 4-6-0 against the spread in his starts this season. Suarez's team has been victorious in 37.5% of the games he's started as the moneyline favorite with a record of 3-5. The Guardians have gone 1-10-0 ATS in Bibee's 11 starts with a set spread. The Guardians have been the underdog on the moneyline in four of Bibee's starts this season, and they went 1-3 in those matchups.

Red Sox vs Guardians Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Red Sox win (54%)

Red Sox vs Guardians Moneyline

• Cleveland is the underdog, -102 on the moneyline, while Boston is a -116 favorite despite being on the road.

Red Sox vs Guardians Spread

• The Red Sox are 1.5-run road favorites on the runline against the Guardians. The Red Sox are +152 to cover, and the Guardians are -184.

Red Sox vs Guardians Over/Under

• The Red Sox-Guardians contest on May 31 has been given an over/under of 7.5 runs. The over is set at -105 and the under at -115.

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Red Sox vs Guardians Betting Trends

• The Red Sox have won in 16, or 44.4%, of the 36 contests they have been named as odds-on favorites in this year.
• This year Boston has won 15 of 34 games when listed as at least -116 on the moneyline.
• The Red Sox and their opponents have gone over the total this season in 26 of their 57 opportunities.
• The Red Sox are 24-33-0 against the spread in their 57 games with a line set by sportsbooks this season.
• The Guardians have won 13 of the 23 games they were listed as the moneyline underdog this season (56.5%).
• When playing as a moneyline underdog with odds of -102 or longer, Cleveland has a 12-9 record (winning 57.1% of its games).
• The Guardians have had an over/under set by bookmakers 56 times, and have combined with opponents to go over the total in 28 of those games (28-28-0).
• The Guardians have a 28-28-0 record ATS this season (covering 50% of the time).

Red Sox Player Leaders

• Willson Contreras leads Boston in OBP (.384) and total hits (56) this season. He's batting .286 batting average while slugging .505.
• He ranks 30th in batting average, 19th in on-base percentage, and 22nd in slugging among qualifying batters in baseball.
• Wilyer Abreu leads Boston in slugging percentage (.427) thanks to 19 extra-base hits. He's batting .280 with an on-base percentage of .344.
• Among qualifying hitters, his batting average ranks him 36th, his on-base percentage 59th, and his slugging percentage 68th.
• Ceddanne Rafaela has collected 53 base hits, an OBP of .340 and a slugging percentage of .430 this season.
• Jarren Duran is batting .217 with a .279 OBP and 32 RBI for Boston this season.
• Duran heads into this matchup on a seven-game hitting streak. During his last 10 outings he is hitting .348 with a double, a triple, five home runs, three walks and 13 RBIs.

Guardians Player Leaders

• Jose Ramirez is hitting .228 with 13 doubles, eight home runs and 39 walks. He's slugging .397 with an on-base percentage of .344.
• Including all qualifying hitters in MLB, his batting average places him 119th, his on-base percentage is 59th, and he is 90th in slugging.
• Chase DeLauter is batting .260 with 11 doubles, a triple, seven home runs and 25 walks. He's slugging .430 with an on-base percentage of .339.
• Including all qualifying hitters, his batting average places him 66th, his on-base percentage is 70th, and he is 65th in slugging.
• Brayan Rocchio has a .371 on-base percentage and a .408 slugging percentage, both team-best numbers for the Guardians.
• Angel Martinez has 45 hits to lead his team.

Red Sox vs Guardians Head to Head

• 5/30/2026: 9-1 BOS (Favorite: Guardians, Spread: -1.5, Total: 6.5, Favorite Moneyline: -130, Underdog Moneyline: +110)
• 5/29/2026: 4-3 CLE (Favorite: Guardians, Spread: -1.5, Total: 8, Favorite Moneyline: -124, Underdog Moneyline: +106)
• 9/3/2025: 8-1 CLE (Favorite: Red Sox, Spread: -1.5, Total: 9, Favorite Moneyline: -154, Underdog Moneyline: +130)
• 9/2/2025: 11-7 BOS (Favorite: Red Sox, Spread: -1.5, Total: 7.5, Favorite Moneyline: -270, Underdog Moneyline: +220)
• 9/1/2025: 6-4 BOS (Favorite: Red Sox, Spread: -1.5, Total: 8, Favorite Moneyline: -144, Underdog Moneyline: +122)
• 4/27/2025: 13-3 BOS (Favorite: Red Sox, Spread: -1.5, Total: 7.5, Favorite Moneyline: -118, Underdog Moneyline: -100)
• 4/26/2025: 7-3 BOS (Favorite: Red Sox, Spread: -1.5, Total: 7.5, Favorite Moneyline: -116, Underdog Moneyline: -102)
• 4/26/2025: 5-4 CLE (Favorite: Red Sox, Spread: -1.5, Total: 7.5, Favorite Moneyline: -110, Underdog Moneyline: -106)
• 4/25/2024: 6-4 CLE (Favorite: Guardians, Spread: -1.5, Total: 7.5, Favorite Moneyline: -132, Underdog Moneyline: +112)
• 4/24/2024: 8-0 BOS (Favorite: Guardians, Spread: -1.5, Total: 7.5, Favorite Moneyline: -136, Underdog Moneyline: +116)

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