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

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Written by Dave Garofolo

Get Seattle Mariners vs Milwaukee Brewers predictions for MLB Tuesday.

Seattle Mariners-Milwaukee Brewers Predictions and Game Preview.
Seattle Mariners vs. Milwaukee Brewers MLB prediction for Tuesday, August 18, 2026.

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?

Using trusted machine learning and data, we have simulated the outcome of Tuesday's MLB game between the Mariners and Brewers, forming part of our MLB predictions coverage.

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.

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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Written by
Dave Garofolo
Content Producer

Dave Garofolo uses sophisticated AI-driven analytics to make predictions and evaluate player performances in the NBA, MLB, NFL, NHL, NCAAM, and PGA TOUR tournaments, crafting insightful game and prop previews.

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