Mariners vs Cubs Prediction, Odds, Moneyline, Spread & Over/Under for Aug. 23

Odds updated as of 1:12 a.m.

The Sunday slate in MLB includes a matchup between the Seattle Mariners and the Chicago Cubs.

We've got you covered, in terms of the vital info about this matchup before you take a look at the MLB odds and spreads on FanDuel Sportsbook.

Mariners vs Cubs Game Info

• Seattle Mariners (62-68) vs. Chicago Cubs (74-56)
• Date: Sunday, August 23, 2026
• Time: 4:10 p.m. ET
• Venue: T-Mobile Park -- Seattle, Washington
• Coverage: Mariners.TV and MARQ

Mariners vs Cubs Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: SEA: (-108) | CHC: (-108)
• Spread: SEA: +1.5 (-176) | CHC: -1.5 (+146)
• Total: 7.5 -- Over: (-112) | Under: (-108)

Mariners vs Cubs Probable Starting Pitchers

Probable Pitchers: Bryce Miller (Mariners) - 4-7, 3.71 ERA vs Shota Imanaga (Cubs) - 8-9, 3.77 ERA

The Mariners will call on Bryce Miller (4-7) against the Cubs and Shota Imanaga (8-9). Miller and his team are 1-13-0 ATS this season when he starts. Miller's team has been victorious in 25% of the games he's started as the moneyline favorite with a record of 3-9. The Cubs are 10-14-0 ATS in Imanaga's 24 starts with a set spread. The Cubs have been the underdog on the moneyline in three of Imanaga's starts this season, and they went 2-1 in those games.

Mariners vs Cubs Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Cubs win (53.5%)

Mariners vs Cubs Moneyline

• Seattle is a -108 favorite on the moneyline, while Chicago is a -108 underdog on the road.

Mariners vs Cubs Spread

Mariners vs Cubs Over/Under

• A combined run total of 7.5 has been set for Mariners-Cubs on Aug. 23, with the over at -112 and the under at -108.

Bet on Seattle Mariners vs. Chicago Cubs on FanDuel today!

Mariners vs Cubs Betting Trends

• The Mariners have been chosen as favorites in 101 games this year and have walked away with the win 51 times (50.5%) in those games.
• Seattle has a record of 52-50 when favored by -108 or more this year.
• The Mariners and their opponents have hit the over in 65 of their 129 games with a total set by oddsmakers this season.
• The Mariners have an against the spread mark of 47-82-0 in 129 games with a line this season.
• The Cubs have compiled a 21-18 record in games they were listed as the moneyline underdog (winning 53.8% of those games).
• Chicago has a record of 21-18 in games it has played as a moneyline underdog with odds of -108 or longer (53.8%).
• In the 125 games bookmakers have set an over/under for the Cubs, they have combined with opponents to go over the total 68 times (68-57-0).
• The Cubs have a 61-64-0 record ATS this season (covering 48.8% of the time).

Mariners Player Leaders

• Randy Arozarena leads Seattle with 125 hits and an OBP of .369, plus a team-best slugging percentage of .463. He's batting .275.
• He is 35th in batting average, 18th in on-base percentage, and 40th in slugging among all qualifying batters in baseball.
• Arozarena has recorded a base hit in two games in a row. During his last five outings he is hitting .250 with two home runs, two walks and four RBIs.
• Josh Naylor leads Seattle in slugging percentage (.367) thanks to 28 extra-base hits. He's batting .265 with an on-base percentage of .328.
• His batting average is 50th among qualified players, his on-base percentage 75th, and his slugging percentage 119th.
• Cole Young has 120 hits this season and has a slash line of .253/.313/.392.
• Julio Rodriguez has 19 home runs, 53 RBI and a batting average of .250 this season.

Cubs Player Leaders

• Pete Crow-Armstrong has accumulated an on-base percentage of .377, a slugging percentage of .554, and has 138 hits, all club-highs for the Cubs (while batting .279).
• Including all qualifying hitters, he ranks 26th in batting average, while his on-base percentage ranks 11th and he is second in slugging.
• Alex Bregman is hitting .258 with 24 doubles, a triple, 19 home runs and 63 walks. He's slugging .423 with an on-base percentage of .347.
• He is currently 68th in batting average, 50th in on-base percentage and 70th in slugging percentage among all qualifying hitters.
• Nico Hoerner is batting .263 with 27 doubles, a triple, seven home runs and 40 walks.
• Seiya Suzuki is batting .267 with 24 doubles, 22 home runs and 58 walks.

Mariners vs Cubs Head to Head

• 8/22/2026: 5-4 SEA (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -114, Underdog Moneyline: +106)
• 8/21/2026: 6-5 SEA (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -108, Underdog Moneyline: +100)
• 6/22/2025: 14-6 SEA (Favorite: Mariners, Spread: -1.5, Total: 11.5, Favorite Moneyline: -130, Underdog Moneyline: +110)
• 6/21/2025: 10-7 CHC (Favorite: Cubs, Spread: -1.5, Total: 12.5, Favorite Moneyline: -166, Underdog Moneyline: +140)
• 6/20/2025: 9-4 SEA (Favorite: Cubs, Spread: -1.5, Total: 9.5, Favorite Moneyline: -144, Underdog Moneyline: +122)
• 4/14/2024: 3-2 CHC (Favorite: Mariners, Spread: -1.5, Total: 7, Favorite Moneyline: -142, Underdog Moneyline: +120)
• 4/13/2024: 4-1 CHC (Favorite: Cubs, Spread: -1.5, Total: 7.5, Favorite Moneyline: -136, Underdog Moneyline: +116)
• 4/12/2024: 4-2 SEA (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -134, Underdog Moneyline: +114)
• 4/12/2023: 5-2 SEA (Favorite: Mariners, Spread: -1.5, Total: 11, Favorite Moneyline: -112, Underdog Moneyline: -104)
• 4/11/2023: 14-9 CHC (Favorite: Cubs, Spread: -1.5, Total: 10.5, Favorite Moneyline: -120, Underdog Moneyline: +102)

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