Mariners vs. Brewers prediction: Why Milwaukee is favored to win Tuesday's MLB matchup [8/18/2026]
Get Seattle Mariners vs Milwaukee Brewers predictions for MLB Tuesday.

The Milwaukee Brewers and Seattle Mariners will lock horns in MLB action at American Family Field on Tuesday, starting at 7:40 PM ET.
The Brewers will start Kyle Harrison (9-3, 2.99 ERA), pitting him against Bryce Miller (4-6, 3.39 ERA) for the Mariners.
Dimers' proven MLB model projects the Brewers as the most likely winner in this Mariners vs. Brewers prediction.
This article offers a closer look at Tuesday's matchup, including best bets and picks.
For more, dive into Kyle Harrison's pitching projections.
Mariners vs. Brewers prediction: Who will win and cover?
Our independent predictive model gives the Brewers a 56.4% chance of beating the Mariners.
According to our model, the Mariners (+1.5) have a 62.1% chance of covering the run line, while the over/under total of 7.5 runs has a 56.3% chance of going over,.
Mariners vs. Brewers odds [8/18/2026]
We have researched the best MLB odds in America for this game, which are listed here:
- Run Line: Mariners +1.5 (-156) / Brewers -1.5 (+150)
- Moneyline: Mariners +144, Brewers -144
All odds are correct at the time of publication and are subject to change.
Mariners vs. Brewers picks and best bet
After matching our predictions against the best available odds, we can reveal our picks for each of the major markets in this matchup. Plus, find our best bet for the game below:
- Run line: Mariners +1.5 @ -156 via DraftKings
- Moneyline: Mariners @ +144 via Polymarket
- Total: Over 7.5 @ -108 via Novig
According to our MLB best bets, the top play to make on this game is Over 7.5 total runs.
These picks are based on our probabilities matched against the implied probabilities from the sportsbook odds.
Mariners vs. Brewers game-day updates and essential details
Tuesday's MLB game between the Brewers and Mariners at American Family Field is scheduled to commence at 7:40 PM ET.
- Who: Seattle Mariners vs. Milwaukee Brewers
- Date: Tuesday, August 18, 2026
- Time: 7:40 PM ET/4:40PM PT
- Venue: American Family Field
Conclusion
We predict the Brewers, with a 56.4% win probability, will likely beat the Mariners in Tuesday's MLB matchup.
Additional tools and information for betting safely can be found in our Responsible Gambling hub.
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