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

Odds updated as of 7:12 p.m.

The MLB slate on Monday includes the Boston Red Sox taking on the Kansas City Royals.

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

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: (-162) | KC: (+136)
• Spread: BOS: -1.5 (+120) | KC: +1.5 (-144)
• Total: 9.5 -- Over: (-104) | Under: (-118)

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) versus the Royals and Bailey Falter (7-5). Bello's team is 11-7-0 against the spread in his starts this season. Bello's team has won 70% of his starts when they are favored on the moneyline (7-3). The Royals are 13-7-0 against the spread when Falter starts. The Royals have an 8-7 record in Falter's 15 starts this season when 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 (68.4%)

Red Sox vs Royals Moneyline

• Looking at the moneyline for Royals-Red Sox, Kansas City is the underdog at +136, and Boston is -162 playing at home.

Red Sox vs Royals Spread

• The Red Sox are hosting the Royals and are favored by 1.5 runs (+120 to cover) on the runline. Kansas City is -144 to cover.

Red Sox vs Royals Over/Under

• A total of 9.5 runs has been set for the Red Sox-Royals game on Aug. 4, with the over available at -104 and the under at -118.

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

Red Sox vs Royals Betting Trends

• The Red Sox have been chosen as favorites in 68 games this year and have walked away with the win 40 times (58.8%) in those games.
• This season Boston has been victorious 11 times in 19 chances when named as a favorite of at least -162 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 have posted a record of 63-49-0 against the spread this season.
• The Royals have been the underdog on the moneyline 67 total times this season. They've gone 32-35 in those games.
• In games it has played as a moneyline underdog with odds of +136 or longer, Kansas City has gone 6-8 (42.9%).
• In the 110 games oddsmakers have set an over/under for the Royals, they have combined with 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.
• He is 72nd in batting average, 73rd in on-base percentage, and 56th in slugging among all qualifying hitters in the majors.
• Ceddanne Rafaela leads Boston in total hits (100) this season while batting .267 with 40 extra-base hits. He's slugging .457 with an on-base percentage of .307.
• His batting average ranks 61st among qualified players, his on-base percentage 120th, and his slugging percentage 56th.
• Rafaela has picked up at least one hit in two straight games. During his last five outings 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 logged a hit or more in five games in a row. In his last five games he is batting .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) while pacing the Royals in hits (125). He's batting .285 and with an on-base percentage of .340.
• Including all the qualified hitters in the big leagues, he is 20th in batting average, 61st in on-base percentage and 23rd in slugging percentage.
• Maikel Garcia paces his team with a .353 OBP. He has a batting average of .297 while slugging .463.
• He is currently 11th in batting average, 40th in on-base percentage and 50th in slugging percentage among all qualified hitters.
• Vinnie Pasquantino has 18 doubles, a triple, 18 home runs and 36 walks while batting .264.
• Salvador Perez has 27 doubles, 20 home runs and 19 walks while hitting .256.

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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