Seattle Mariners (60-67) vs. Milwaukee Brewers (78-49) August 20, 2026 2:10 pm EDT The Line: Milwaukee Brewers -121 / Seattle Mariners 112; Over/Under: 8 (Get latest betting odds)
In this article, we will formulate a Mariners vs Brewers Prediction for this MLB matchup on Thursday, August 20 th in the third game of this series. Let’s take a look at the prediction for this MLB matchup.
The Milwaukee Brewers have a 78-49 record this season and are sitting in 1st place in the NL Central. They have a 42-23 home record and are coming off a 5-7 home loss against the Mariners. They will face the Braves and the Mets next.
The Milwaukee Brewers have a .252 batting average this season, a .337 OBP, and a .396 slugging percentage. The Brewers’ pitching staff has a 3.46 ERA and a 1.16 WHIP. Jackson Chourio leads the Brewers with a .279 batting average. Brice Turang leads the team in RBI with 75, while Jake Bauers adds a team-high 22 home runs.
Robert Gasser (L) is the projected starting pitcher for the Brewers, and he has a 3-5 record, a 4.54 ERA, and a 1.24 WHIP.
The Seattle Mariners have a 60-67 record this season and are sitting in 3rd place in the AL West. They have a 27-38 road record and are coming off a 7-5 road win against the Brewers. They will face the Cubs and the Phillies next.
The Seattle Mariners have a .230 batting average this season, a .310 OBP, and a .377 slugging percentage. The Mariners’ pitching staff has a 3.97 ERA and a 1.22 WHIP. Randy Arozarena leads the Mariners with a .274 batting average. Cole Young leads the team in RBI with 56, while Julio Rodriguez adds a team-high 19 home runs.
George Kirby (R) is the projected starting pitcher for the Mariners, and he has an 8-9 record, a 3.89 ERA, and a 1.31 WHIP.
The Brewers are 7-3 in their last 10 meetings against the Mariners and have won two of their last three meetings in Milwaukee.
In this Mariners vs Brewers Prediction, the Brewers are coming as -125 home favorites. I like the Brewers in a bounce-back spot today at home, as Gasser has been better at home with a 3.47 ERA, while Kirby has been weaker on the road with a 4.10 ERA. On top of that, the bullpen edge in their last 5 games has been enormous, with the Brewers having a 0.51 bullpen ERA in that span, as opposed to the Mariners’ 11.42 and they also cannot hit lefties in that span, with just 1.1 runs per game against southpaws. Take the Brewers in this one.