Seattle Mariners (59-66) vs. Milwaukee Brewers (77-48) August 18, 2026 7:40 pm EDT The Line: Milwaukee Brewers -163 / Seattle Mariners 135; Over/Under: 7.5 (Get latest betting odds)
In this article, we will formulate a Mariners vs Brewers Prediction for this MLB matchup on Tuesday, August 18 th in the opening game of this series. Let’s take a look at the prediction for this MLB matchup.
The Milwaukee Brewers have a 77-48 record this season and are sitting in 1st place in the NL Central. They have a 41-22 home record and are coming off a 6-2 road win against the Dodgers. They will face the Braves and the Mets next.
The Milwaukee Brewers have a .250 batting average this season, a .335 OBP, and a .392 slugging percentage. The Brewers’ pitching staff has a 3.50 ERA and a 1.16 WHIP. Jackson Chourio leads the Brewers with a .275 batting average. Brice Turang leads the team in RBI with 76, while Jake Bauers adds a team-high 21 home runs.
Kyle Harrison (L) is the projected starting pitcher for the Brewers, and he has a 9-3 record, a 3.47 ERA, and a 1.13 WHIP.
The Seattle Mariners have a 59-66 record this season and are sitting in 3rd place in the AL West. They have a 26-37 road record and are coming off a 3-2 road win against the Astros. They will face the Cubs and the Phillies next.
The Seattle Mariners have a .230 batting average this season, a .309 OBP, and a .378 slugging percentage. The Mariners’ pitching staff has a 3.85 ERA and a 1.21 WHIP. Randy Arozarena leads the Mariners with a .276 batting average. Cole Young leads the team in RBI with 56, while Julio Rodriguez adds a team-high 19 home runs.
Bryce Miller (R) is the projected starting pitcher for the Mariners, and he has a 4-6 record, a 3.39 ERA, and a 0.99 WHIP.
The Brewers are 8-2 in their last 10 meetings against the Mariners and are 3-1 in their last 4 meetings in Milwaukee.
In this Mariners vs Brewers Prediction, the Brewers are coming as -150 home favorites. I like the Brewers at home in this one, as Bryce Miller has been in very bad form for the Mariners. He has given up 4+ runs in three of his last four starts and has been weaker on the road, with a 4.47 ERA and the Mariners have been terrible against lefties lately with just 1.5 runs per game in their last 10. Kyle Harrison has been elite at home with a 6-1 record and 1.38 ERA and I expect him to lead the Brewers to a home victory today.