Mariners vs Royals Prediction, Odds, Moneyline, Spread & Over/Under for August 16

Odds updated as of 7:34 PM

The Seattle Mariners will face the Kansas City Royals in MLB action on Wednesday.

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

Mariners vs Royals Game Info

• Seattle Mariners (64-55) vs. Kansas City Royals (39-82)
• Date: Wednesday, August 16, 2023
• Time: 8:10 PM ET
• Venue: Kauffman Stadium -- Kansas City, Missouri
• Coverage: BSKC

Mariners vs Royals Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: SEA: (-205) | KC: (+172)
• Spread: SEA: -1.5 (-128) | KC: +1.5 (+106)
• Total: 9 -- Over: (-122) | Under: (-100)

Mariners vs Royals Probable Starting Pitchers

Probable Pitchers: Luis Castillo (Mariners) - 8-7, 3.20 ERA vs James McArthur (Royals) - 0-0, 13.50 ERA

This contest's pitching matchup is set, as the Mariners will send Luis Castillo (8-7) to the mound, while McArthur will answer the bell for the Royals. Castillo's team is 10-14-0 against the spread in his starts this season. Castillo's team has a record of 10-9 this season when he starts and they are the favorite on the moneyline. McArthur's team was never the underdog on the moneyline a season ago in games he pitched.

Mariners vs Royals Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Mariners win (65.2%)

Mariners vs Royals Moneyline

• The moneyline numbers for Mariners vs. Royals reveal Seattle as the favorite (-205) and Kansas City as the underdog (+172) despite being the home team.

Mariners vs Royals Spread

• The Royals are +1.5 on the run line against the Mariners. The Royals are +106 to cover, and the Mariners are -128.

Mariners vs Royals Over/Under

• An over/under of 9 has been set for Mariners-Royals on August 16, with the over being -122 and the under -100.

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Mariners vs Royals Betting Trends

• The Mariners have been chosen as favorites in 78 games this year and have walked away with the win 44 times (56.4%) in those games.
• Seattle has a record of 9-3 when favored by -205 or more this year.
• The Mariners and their opponents have gone over in 58 of their 119 games with a total set by sportsbooks this season.
• The Mariners are 58-61-0 against the spread in their 119 games that had a posted line this season.
• The Royals have won 34 of the 106 games they were the underdog on the moneyline this season (32.1%).
• Kansas City has an 8-23 record (winning just 25.8% of its games) when it has played as a moneyline underdog of +172 or longer.
• The Royals have played in 120 games with a set over/under, and have combined with opponents to go over the total 57 times (57-61-2).
• The Royals have a 52-68-0 record ATS this season (covering 43.3% of the time).

Mariners Player Leaders

• Julio Rodriguez has an OPS of .751, fueled by an OBP of .319 and a team-best slugging percentage of .432 this season. He has a .256 batting average.
• Among the qualifying batters in the majors, his batting average ranks 78th, his on-base percentage ranks 96th, and he is 74th in slugging.
• Rodriguez will look for his fourth straight game with a hit in this contest. During his last five outings he is hitting .240 with three doubles, a home run, a walk and nine RBI.
• Ty France is hitting .257 with 28 doubles, 10 home runs and 30 walks, while slugging .390 with an on-base percentage of .334.
• Among qualifying hitters, he is 72nd in batting average, 65th in on-base percentage and 111th in slugging percentage.
• Eugenio Suarez has 102 hits this season and has a slash line of .233/.324/.390.
• Suarez has logged a hit or more in three straight games. During his last five outings he is batting .250 with a home run, four walks and three RBI.
• Cal Raleigh leads Seattle with 79 hits, batting .219 this season with 38 extra-base hits.

Royals Player Leaders

• Bobby Witt Jr. has put up a team-high OBP (.318) and slugging percentage (.496), while leading the Royals in hits (133, while batting .277).
• Including all the qualified hitters in the big leagues, his batting average ranks 33rd, his on-base percentage ranks 99th, and he is 23rd in slugging.
• Witt Jr. brings an eight-game hitting streak into this matchup. During his last 10 games he is batting .366 with three doubles, four home runs, four walks and 12 RBI.
• Salvador Perez is batting .253 with 19 doubles, 19 home runs and 16 walks. He's slugging .436 with an on-base percentage of .296.
• Including all qualified hitters, he is 86th in batting average, 128th in on-base percentage and 68th in slugging percentage.
• Maikel Garcia has 15 doubles, two triples, four home runs and 25 walks while hitting .290.
• MJ Melendez has 22 doubles, three triples, 12 home runs and 42 walks while hitting .227.

Mariners vs. Royals Head to Head

• 8/15/2023: 10-8 SEA (Favorite: Mariners, Spread: -1.5, Total: 9.5, Favorite Moneyline: -142, Underdog Moneyline: +120)
• 8/14/2023: 7-6 KC (Favorite: Mariners, Spread: -1.5, Total: 8, Favorite Moneyline: -148, Underdog Moneyline: +126)
• 9/25/2022: 13-12 KC (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -184, Underdog Moneyline: +154)
• 9/24/2022: 6-5 SEA (Favorite: Mariners, Spread: -1.5, Total: 8, Favorite Moneyline: -180, Underdog Moneyline: +152)
• 9/23/2022: 5-1 KC (Favorite: Royals, Spread: -1.5, Total: 7.5, Favorite Moneyline: -130, Underdog Moneyline: +110)
• 4/24/2022: 5-4 SEA (Favorite: Mariners, Spread: -1.5, Total: 8, Favorite Moneyline: -200, Underdog Moneyline: +168)
• 4/23/2022: 13-7 SEA (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -190, Underdog Moneyline: +160)
• 4/22/2022: 4-1 SEA (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -134, Underdog Moneyline: +114)

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