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

Odds updated as of 3:12 p.m.

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

All the info you need to make smart bets on this matchup 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 (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: (-215) | KC: (+180)
• Spread: BOS: -1.5 (+105) | KC: +1.5 (-126)
• Total: 8.5 -- Over: (-115) | Under: (-105)

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

The probable starters are Ranger Suarez (6-4) for the Red Sox and Randy Dobnak (3-3) for the Royals. Suarez's team is 13-12-0 against the spread in his starts this season. When Suarez starts a game and his team is the favorite on the moneyline, they have a record of 11-8. The Royals have a 7-3-0 ATS record in Dobnak's 10 starts with a set spread. The Royals are 4-4 in Dobnak's eight starts this season that they were the underdog on the moneyline.

Red Sox vs Royals Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Red Sox win (69.6%)

Red Sox vs Royals Moneyline

• Boston is the favorite, -215 on the moneyline, while Kansas City is a +180 underdog on the road.

Red Sox vs Royals Spread

• The Royals are +1.5 on the spread (-126 to cover), and Boston is +105 to cover the runline.

Red Sox vs Royals Over/Under

• The Red Sox-Royals game on Sept. 12 has been given an over/under of 8.5 runs. The over is set at -115 and the under at -105.

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Red Sox vs Royals Betting Trends

• The Red Sox have been victorious in 56, or 53.8%, of the 104 contests they have been chosen as favorites in this season.
• This year Boston has won one of four games when listed as at least -215 on the moneyline.
• The Red Sox and their opponents have gone over the total this season in 67 of their 146 opportunities.
• The Red Sox have posted a record of 69-77-0 against the spread this season.
• The Royals have a 37-54 record in games they were the underdog on the moneyline (winning 40.7% of those games).
• Kansas City has not won a game when entering as a moneyline underdog with odds of +180 or longer in five chances.
• The Royals have had an over/under set by oddsmakers 142 times, and have combined with opponents to go over the total in 65 of those games (65-74-3).
• The Royals have put together a 74-68-0 record against the spread this season (covering 52.1% of the time).

Red Sox Player Leaders

• Wilyer Abreu has 35 doubles, four triples, 24 home runs and 67 walks while hitting .257. He has an on-base percentage of .338 and a slugging percentage of .467.
• Among all qualified hitters in the majors, he is 67th in batting average, 56th in on-base percentage, and 35th in slugging.
• Abreu has hit safely in three games in a row. 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.
• He ranks 76th in batting average, 70th in on-base percentage and 112th in slugging in the major leagues.
• Durbin enters this game looking to extend his two-game hit streak. In his last five games 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 matchup 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 is batting .236 with a .317 OBP and 56 RBI for Boston this season.

Royals Player Leaders

• Bobby Witt Jr. has racked up an on-base percentage of .360 and a slugging percentage of .451. Both lead the Royals. He's batting .280.
• Including all the qualified hitters in the big leagues, his batting average is 24th, his on-base percentage is 27th, and he is 45th in slugging.
• Jac Caglianone leads his team with 134 hits. He has a batting average of .283 while slugging .494 with an on-base percentage of .331.
• His batting average is 17th among all qualified players, his on-base percentage is 66th, and he is 17th in slugging.
• Carter Jensen is hitting .231 with 31 doubles, two triples, 23 home runs and 62 walks.
• Salvador Perez is batting .230 with 23 doubles, a triple, 19 home runs and 22 walks.

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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