Red Sox vs Royals Prediction, Odds, Moneyline, Spread & Over/Under for Sept. 12

Odds updated as of 12:12 a.m.

In MLB action on Saturday, the Boston Red Sox take on the Kansas City Royals.

Before checking out the MLB betting lines on FanDuel Sportsbook, we've got you covered, in terms of the most important information about this game.

Red Sox vs Royals Game Info

• Boston Red Sox (80-68) vs. Kansas City Royals (66-82)
• Date: Saturday, September 12, 2026
• Time: 4:10 p.m. ET
• Venue: Fenway Park -- Boston, Massachusetts
• Coverage: NESN and Royals.TV

Red Sox vs Royals Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: BOS: (-198) | KC: (+166)
• Spread: BOS: -1.5 (+112) | KC: +1.5 (-134)
• Total: 8.5 -- Over: (+100) | Under: (-122)

Red Sox vs Royals Probable Starting Pitchers

Probable Pitchers: Ranger Suarez (Red Sox) - 6-4, 3.44 ERA vs Randy Dobnak (Royals) - 3-3, 2.54 ERA

This contest's pitching matchup is set, as the Red Sox will send Ranger Suarez (6-4) to the mound, while Randy Dobnak (3-3) will take the ball for the Royals. Suarez's team is 13-12-0 against the spread this season in his starts. Suarez's team has won 57.9% of his starts when they are favored on the moneyline (11-8). The Royals have gone 7-3-0 ATS in Dobnak's 10 starts with a set spread. The Royals have a 4-4 record in Dobnak's eight 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 (69.8%)

Red Sox vs Royals Moneyline

• Looking at the moneyline for Royals-Red Sox, Kansas City is the underdog at +166, and Boston is -198 playing at home.

Red Sox vs Royals Spread

• The Royals are at +1.5 on the runline against the Red Sox. The Royals are -134 to cover the spread, and the Red Sox are +112.

Red Sox vs Royals Over/Under

• The over/under for the Red Sox versus Royals contest on Sept. 12 has been set at 8.5, with +100 odds on the over and -122 odds on the under.

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Red Sox vs Royals Betting Trends

• The Red Sox have come away with 56 wins in the 104 contests they have been listed as the favorites in this season.
• This year Boston has won three of seven games when listed as at least -198 on the moneyline.
• The Red Sox and their opponents have hit the over in 67 of their 146 games with a total set by oddsmakers this season.
• The Red Sox have an against the spread mark of 69-77-0 in 146 games with a line this season.
• The Royals have put together a 37-54 record in games they were the underdog on the moneyline (winning 40.7% of those games).
• Kansas City has a 2-6 record (winning only 25% of its games) when playing as a moneyline underdog of +166 or longer.
• The Royals have played in 142 games with a set over/under, and have combined with opponents to go over the total 65 times (65-74-3).
• The Royals have a 74-68-0 record ATS this season (covering 52.1% of the time).

Red Sox Player Leaders

• Wilyer Abreu is hitting .257 with 35 doubles, four triples, 24 home runs and 67 walks. He has an on-base percentage of .338 and a slugging percentage of .467.
• Among qualifying hitters in MLB, he ranks 67th in batting average, 56th in on-base percentage, and 33rd in slugging.
• Abreu will look for his fourth straight game with a hit in this contest. In his last five games he is batting .278 with a double, a home run, three walks and two RBIs.
• Caleb Durbin has 23 doubles, a triple, 12 home runs and 45 walks. He's batting .248 and slugging .378 with an on-base percentage of .327.
• Among all qualifying players, he is 77th in batting average, 70th in on-base percentage and 112th in slugging percentage.
• Durbin has picked up a hit in two straight games. During his last five outings he is hitting .250 with a double and four walks.
• Jarren Duran is batting .207 with a .366 slugging percentage and 69 RBI this year.
• Duran enters this game with three games in a row with at least one hit. During his last five outings he is batting .278 with a double, a home run, two walks and an RBI.
• Adley Rutschman has been key for Boston with 75 hits, an OBP of .317 plus a slugging percentage of .421.

Royals Player Leaders

• Bobby Witt Jr. has put up a .360 on-base percentage and a .451 slugging percentage, both team-best averages for the Royals. He's batting .280.
• Including all the qualifying players in the majors, his batting average puts him 25th, his on-base percentage is 27th, and he is 45th in slugging.
• Jac Caglianone has racked up 134 hits to lead his team. He has a batting average of .283 while slugging .494 with an on-base percentage of .331.
• Including all qualifying hitters, he is 16th in batting average, 66th in on-base percentage and 17th in slugging percentage.
• Carter Jensen is hitting .231 with 31 doubles, two triples, 23 home runs and 62 walks.
• Salvador Perez has 23 doubles, a triple, 19 home runs and 22 walks while batting .230.

Red Sox vs Royals Head to Head

• 9/11/2026: 3-2 KC (Favorite: Red Sox, Spread: -1.5, Total: 8.5, Favorite Moneyline: -200, Underdog Moneyline: +168)
• 5/20/2026: 4-3 BOS (Favorite: Royals, Spread: -1.5, Total: 7.5, Favorite Moneyline: -120, Underdog Moneyline: +102)
• 5/19/2026: 7-1 BOS (Favorite: Red Sox, Spread: -1.5, Total: 7.5, Favorite Moneyline: -126, Underdog Moneyline: +108)
• 5/18/2026: 3-1 BOS (Favorite: Red Sox, Spread: -1.5, Total: 9, Favorite Moneyline: -112, Underdog Moneyline: -104)
• 8/6/2025: 7-3 KC (Favorite: Red Sox, Spread: -1.5, Total: 8.5, Favorite Moneyline: -142, Underdog Moneyline: +120)
• 8/5/2025: 6-2 BOS (Favorite: Red Sox, Spread: -1.5, Total: 7.5, Favorite Moneyline: -250, Underdog Moneyline: +205)
• 8/4/2025: 8-5 BOS (Favorite: Red Sox, Spread: -1.5, Total: 9.5, Favorite Moneyline: -162, Underdog Moneyline: +136)
• 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)

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