Cubs vs. Mariners Dunkel MLB Picks, Predictions and Prop Bets - Aug. 23

Alex Bregman rides a two-game homer streak into the Chicago Cubs' game versus the Seattle Mariners at 4:10 p.m. ET on Sunday, at T-Mobile Park. Shota Imanaga (8-9, 3.77 ERA) gets the start for the Cubs, who are 74-56 this season and second in the NL Central. Bryce Miller (4-7, 3.71 ERA) is starting for the Mariners, who are 62-68 and third in the AL West.

Despite playing on the road, the Cubs are still a decent moneyline favorite (-117) over the Mariners (+102). The over/under for the Cubs-Mariners game is set at 7.5.

Cubs vs. Mariners Odds, Game Time

• Game day: Sunday, August 23, 2026
• Game time: 4:10 p.m. ET
• Location: Seattle, Washington
• Stadium: T-Mobile Park
• Favorite: Cubs (-117)
• Underdog: Mariners (+102)
• Over/under: 7.5

How to Watch Cubs vs. Mariners

• TV Channel: SEAM and MARQ
• Live Stream: Fubo (Watch for free)

Bet now on FanDuel Sportsbook!

Cubs vs. Mariners: Betting the Moneyline

• The Cubs have a 51-38 record in games they were favored on the moneyline (winning 57.3% of those games).
• Seattle has been victorious in 10, or 37%, of the 27 contests it has been chosen as underdogs in this season.
• This season Chicago has won 45 of its 82 games, or 54.9%, when favored by at least -117 on the moneyline.
• This season, the Mariners have come away with a win six times in 17 chances when named as an underdog of at least +102 or worse on the moneyline.
• Based on this game's moneyline, the Cubs' implied win probability is 53.9%.
• The Mariners have an implied victory probability of 49.5% according to the moneyline set by sportsbooks for this matchup.

Cubs vs. Mariners: Betting the Spread & Total

• The Cubs have combined with opponents to go over the total 70 times this season for a 70-57-3 record against the over/under.
• So far this season, Seattle and its opponents have hit the over in 65 of its 130 games with a total.
• The Cubs have gone 61-69-0 against the spread this season.
• The Mariners are 49-81-0 against the spread in their 130 games that had a posted line this season.