Mariners vs. Cubs Dunkel MLB Picks, Predictions and Prop Bets - Aug. 22

Alex Bregman leads the Chicago Cubs into a matchup against the Seattle Mariners, a game after homering twice in a 6-5 defeat to the Mariners, at 7:15 p.m. ET on Saturday. Kade Anderson (0-0, 0.00 ERA) gets the start for the Mariners, who are 61-68 this season and third in the AL West. David Peterson (7-7, 5.29 ERA) is starting for the Cubs, who are 74-55 and second in the NL Central.

With moneyline odds of -109 for the Mariners versus -105 for the Cubs, this game should be a close one. The over/under in this contest is set at 7.5.

Mariners vs. Cubs Odds, Game Time

• Game day: Saturday, August 22, 2026
• Game time: 7:15 p.m. ET
• Location: Seattle, Washington
• Stadium: T-Mobile Park
• Favorite: Mariners (-109)
• Underdog: Cubs (-105)
• Over/under: 7.5

How to Watch Mariners vs. Cubs

• TV Channel: FOX
• Live Stream: Fubo (Watch for free)

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Mariners vs. Cubs: Betting the Moneyline

• The Mariners have been the moneyline favorite 101 total times this season. They've gone 51-50 in those games.
• Chicago has been underdogs in 39 games this season and has come away with the win 22 times (56.4%) in those contests.
• Seattle has a record of 52-50 in games when bookmakers favor them by at least -109 on the moneyline.
• The Cubs have a mark of 19-15 in contests where oddsmakers favor them by -105 or worse on the moneyline.
• The Mariners have an implied moneyline win probability of 52.2% in this contest.
• The moneyline set for this matchup implies the Cubs have a 51.2% chance of coming away with a victory in the contest.

Mariners vs. Cubs: Betting the Spread & Total

• In the 129 games in which bookmakers have set an over/under for the Mariners, they have combined with opponents to go over the total 64 times (64-57-8).
• Chicago's games have gone over the total in 69 of its 129 chances.
• The Mariners have a 48-81-0 record ATS this season (covering just 37.2% of the time).
• The Cubs are 61-68-0 against the spread in their 129 games with a line set by sportsbooks this season.