Mariners vs Brewers Prediction 8/20/26 MLB Picks Today

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.

Milwaukee Brewers Preview

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.

Seattle Mariners Preview

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.

Seattle Mariners @ Milwaukee Brewers Betting Trends: August 20, 2026

• Probable Starting Pitcher: Robert Gasser      Record this season: 3-5      ERA: 4.54
• Home Record: 1-2
• Last 5 against Mariners: –

Why the Milwaukee Brewers will win

• The Brewers have won each of their last six games following a home loss.
• The Mariners have lost nine of their last 10 games following a road win.
• The Mariners have failed to cover the run line in each of their last eight games against National League opponents following a road win.
• The Brewers have covered the run line in each of their last four games against AL West opponents following a loss.
• The Mariners have trailed after 3 innings in eight of their last nine road games against National League opponents.
• The Brewers have won the first inning in five of their last six home games.
• The Mariners have trailed after 5 innings in 12 of their last 13 road games against National League opponents.

• Probable Starting Pitcher: George Kirby      Record this season: 8-9      ERA: 3.89
• Road Record: 3-5
• Last 5 against Brewers: 0-1

Why the Seattle Mariners will win

• The Brewers have lost four of their last five games as favorites after playing the previous day.
• The Mariners have won four of their last five games as underdogs after playing the previous day.
• The Brewers have failed to cover the run line in seven of their last eight games as favorites after playing the previous day.
• The road team has covered the run line in nine of the last 11 games between the Mariners and Brewers.
• The Mariners have led after 5 innings in three of their last four games.
• The Mariners have led after 3 innings in four of their last five day games.

Total Runs Facts

• Each of the Mariners’ last seven games as underdogs against NL Central opponents have gone OVER the total runs line.
• Five of the Brewers’ last six games as favorites against the Mariners have gone OVER the total runs line.
• There has been at least one run scored in the first inning in each of the Brewers’ last six home games.
• There has been at least one run scored in the first inning in each of the Mariners’ last six games as underdogs against NL Central opponents.

Milwaukee Brewers Player Prop Facts

• David Hamilton has hit a home run in each of his last two home appearances against AL West opponents.
• Jackson Chourio has recorded at least one hit in each of his last 11 appearances against AL West opponents.
• Jake Bauers ranks 8th amongst qualified players for On Base Percentage (.383) this season.

Seattle Mariners Player Prop Facts

• Cal Raleigh has hit at least one home run in four of his last five appearances in day games against NL Central teams that held a winning record.
• George Kirby has recorded a win in each of his last three appearances against NL Central opponents.
• George Kirby has recorded five or more strikeouts in each of his last four appearances against NL opponents.
• Josh Naylor has recorded at least one hit in each of his last 16 appearances with the Mariners as road underdogs.
• Josh Naylor ranks 10th in the league in Steals (25) this season.

Matchup/League Facts

• The Brewers rank 30th in the league for home runs this season (118).
• The Brewers rank 1st in the league for hits allowed this season (919).
• The Mariners rank 30th in the league for runs scored this season (496).
• The Mariners rank 30th in the league for doubles this season (155).

Mariners vs Brewers Prediction

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.