Red Sox vs Royals Prediction, Odds, Moneyline, Spread & Over/Under for Aug. 4

Odds updated as of 2:13 a.m.

The Monday schedule in MLB includes a matchup between the Boston Red Sox and the Kansas City Royals.

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

Red Sox vs Royals Game Info

• Boston Red Sox (62-51) vs. Kansas City Royals (56-56)
• Date: Monday, August 4, 2025
• Time: 7:10 p.m. ET
• Venue: Fenway Park -- Boston, Massachusetts
• Coverage: NESN and FDSKC

Red Sox vs Royals Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: BOS: (-158) | KC: (+134)
• Spread: BOS: -1.5 (+132) | KC: +1.5 (-160)
• Total: 9 -- Over: (-122) | Under: (-100)

Red Sox vs Royals Probable Starting Pitchers

Probable Pitchers: Brayan Bello (Red Sox) - 7-5, 3.19 ERA vs Bailey Falter (Royals) - 7-5, 3.73 ERA

The Red Sox will give the nod to Brayan Bello (7-5) against the Royals and Bailey Falter (7-5). When Bello starts, his team is 11-7-0 against the spread this season. When Bello starts a game and his team is the favorite on the moneyline, they have a record of 7-3. The Royals have a 13-7-0 record against the spread in Falter's starts. The Royals are 8-7 in Falter's 15 starts this season that they were the moneyline underdog.

Red Sox vs Royals Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Red Sox win (64%)

Red Sox vs Royals Moneyline

• Boston is the favorite, -158 on the moneyline, while Kansas City is a +134 underdog on the road.

Red Sox vs Royals Spread

• The Red Sox are 1.5-run home favorites on the runline against the Royals. The Red Sox are +132 to cover, and the Royals are -160.

Red Sox vs Royals Over/Under

• An over/under of 9 has been set for Red Sox-Royals on Aug. 4, with the over being -122 and the under -100.

Bet on Boston Red Sox vs. Kansas City Royals on FanDuel today!

Red Sox vs Royals Betting Trends

• The Red Sox have won in 40, or 58.8%, of the 68 contests they have been named as odds-on favorites in this year.
• This year Boston has won 11 of 19 games when listed as at least -158 on the moneyline.
• The Red Sox and their opponents have gone over in 51 of their 112 games with a total set by sportsbooks this season.
• The Red Sox are 63-49-0 against the spread in their 112 games with a line set by sportsbooks this season.
• The Royals have compiled a 32-35 record in games they were the underdog on the moneyline (winning 47.8% of those games).
• When it has played as a moneyline underdog with odds of +134 or longer, Kansas City has a record of 7-8 (46.7%).
• The Royals have played in 110 games with an over/under set, and have combined with their opponents to go over the total 45 times (45-63-2).
• The Royals have put together a 57-53-0 record against the spread this season (covering 51.8% of the time).

Red Sox Player Leaders

• Jarren Duran leads Boston in OBP (.329), slugging percentage (.457) and total hits (117) this season. He has a .262 batting average.
• Among qualified hitters in the majors, he is 72nd in batting average, 73rd in on-base percentage, and 56th in slugging.
• Ceddanne Rafaela leads Boston with 100 hits. He is batting .267 this season and has 40 extra-base hits. He's also slugging .457 with an on-base percentage of .307.
• He is 61st in batting average, 120th in on-base percentage and 56th in slugging among qualified hitters.
• Rafaela heads into this game looking to extend his two-game hit streak. In his last five games he is batting .368 with two doubles, a triple and two RBIs.
• Trevor Story has 107 hits this season and has a slash line of .256/.299/.431.
• Story has picked up a hit in five games in a row. During his last five outings he is hitting .500 with four doubles, three home runs, two walks and eight RBIs.
• Wilyer Abreu has been key for Boston with 76 hits, an OBP of .313 plus a slugging percentage of .481.

Royals Player Leaders

• Bobby Witt Jr. has racked up a team-best slugging percentage (.493) and paces the Royals in hits (125). He's batting .285 and with an on-base percentage of .340.
• Including all the qualified players in the majors, he ranks 20th in batting average, 61st in on-base percentage and 23rd in slugging percentage.
• Maikel Garcia has a .353 OBP to pace his team. He has a batting average of .297 while slugging .463.
• Including all qualified hitters, he is 11th in batting average, 40th in on-base percentage and 50th in slugging percentage.
• Vinnie Pasquantino is hitting .264 with 18 doubles, a triple, 18 home runs and 36 walks.
• Salvador Perez is batting .256 with 27 doubles, 20 home runs and 19 walks.

Red Sox vs Royals Head to Head

• 5/11/2025: 3-1 BOS (Favorite: Royals, Spread: -1.5, Total: 8.5, Favorite Moneyline: -134, Underdog Moneyline: +116)
• 5/10/2025: 10-1 BOS (Favorite: Royals, Spread: -1.5, Total: 7, Favorite Moneyline: -116, Underdog Moneyline: -102)
• 5/9/2025: 2-1 KC (Favorite: Red Sox, Spread: -1.5, Total: 9, Favorite Moneyline: -110, Underdog Moneyline: -106)
• 8/7/2024: 8-4 KC (Favorite: Royals, Spread: -1.5, Total: 8.5, Favorite Moneyline: -142, Underdog Moneyline: +120)
• 8/6/2024: 6-5 BOS (Favorite: Royals, Spread: -1.5, Total: 8.5, Favorite Moneyline: -130, Underdog Moneyline: +110)
• 8/5/2024: 9-5 BOS (Favorite: Royals, Spread: -1.5, Total: 10, Favorite Moneyline: -134, Underdog Moneyline: +114)
• 7/14/2024: 5-4 BOS (Favorite: Red Sox, Spread: -1.5, Total: 9.5, Favorite Moneyline: -148, Underdog Moneyline: +126)
• 7/13/2024: 5-0 BOS (Favorite: Red Sox, Spread: -1.5, Total: 8.5, Favorite Moneyline: -134, Underdog Moneyline: +114)
• 7/12/2024: 6-1 KC (Favorite: Royals, Spread: -1.5, Total: 9, Favorite Moneyline: -112, Underdog Moneyline: -104)
• 9/3/2023: 7-3 BOS (Favorite: Red Sox, Spread: -1.5, Total: 10, Favorite Moneyline: -194, Underdog Moneyline: +162)

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