Seattle Mariners vs Milwaukee Brewers Prediction 8/18/2026 Today’s MLB Picks

The Seattle Mariners and the Milwaukee Brewers meet Tuesday in MLB action from American Family Field. We will look at this from a betting perspective and determine the best bets for this game. Here’s a Seattle Mariners vs. Milwaukee Brewers prediction.

Starting Pitching Matchup

The Seattle Mariners will send out Bryce Miller for the start here and Miller is 4-6 with a 3.39 ERA and 84 strikeouts this season. Kyle Harrison will start for Milwaukee and is 9-3 with a 3.47 ERA and 114 strikeouts this season. 

Seattle Mariners Recap

The Seattle Mariners come into this game looking to build on their 3-2 win over Houston last time out to sit at 59-66 this season. After this series, the Mariners will take on the Chicago Cubs in a series at home.

Mariners Win 3 Of Last 4

Luke Raley has 15 home runs and 39 RBIs this season. Cole Young’s added 119 hits with 15 doubles, 3 triples, 15 home runs and 56 RBIs and Cal Raleigh has 52 hits with 8 doubles, 13 home runs and 44 RBIs as well this season. Randy Arozarena has 120 hits with 26 doubles, 17 home runs and 53 RBIs as well on the year. Josh Naylor also has 120 hits with 10 home runs and 44 RBIs as well on the year. Julio Rodriguez has also added 115 hits with 18 doubles, 19 home runs and 52 RBIs.

Milwaukee Brewers Recap

The Milwaukee Brewers come into this game looking to add on to their 6-2 win over the Dodgers last time out to sit at 77-48 this season. After this series, the Brewers will take on the Braves in a series at home.

Brewers Win Back-To-Back Games

William Contreras has 114 hits with 17 doubles, 12 home runs and 61 RBIs while Brice Turang’s added 121 hits with 28 doubles, 3 triples, 16 homers and 76 RBIs. Jake Bauers has 104 hits with 18 doubles, 21 home runs and 70 RBIs and Sal Frelick’s added 65 hits with 4 home runs and 34 RBIs this season. Garrett Mitchell has 89 hits with 24 doubles and 51 RBIs this season. Jackson Chourio’s also contributed 103 hits with 22 doubles, 17 home runs and 49 RBIs this season.

Seattle Mariners @ Milwaukee Brewers Betting Trends: August 18, 2026

• Probable Starting Pitcher: Kyle Harrison      Record this season: 9-3      ERA: 2.99
• Home Record: 6-1
• Last 5 against Mariners: –

Why the Milwaukee Brewers will win

• The Mariners have lost eight of their last nine games following a road win.
• The Brewers have won seven of their last eight night games at American Family Field following a road win.
• The Mariners have failed to cover the run line in each of their last seven games against National League opponents following a road win.
• The Brewers have covered the run line in each of their last five games against the Mariners following a road win.
• The Mariners have trailed after 5 innings in each of their last 11 road games against National League opponents.
• The Brewers have won the first inning in each of their last four home games.
• The Mariners have trailed after 3 innings in each of their last seven road games against National League opponents.

• Probable Starting Pitcher: Bryce Miller      Record this season: 4-6      ERA: 3.39
• Road Record: 3-3
• Last 5 against Brewers: 1-0

Why the Seattle Mariners will win

• The Brewers have lost each of their last three games as home favorites against the Mariners following a win.
• The Mariners have won three of their last four games as underdogs.
• The road team has covered the run line in eight of the last nine games between the Mariners and Brewers.
• The Brewers have failed to cover the run line in eight of their last nine games as home favorites against American League opponents.
• The Mariners have led after 5 innings in three of their last four games.
• The Mariners have won the first inning in three of their last four night games.
• The Mariners have led after 3 innings in four of their last five games.

Total Runs Facts

• Each of the Brewers’ last five games against AL West opponents have gone UNDER the total runs line.
• Each of the Mariners’ last five games as underdogs against NL Central opponents 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 four home games.
• There has been at least one run scored in the first inning in each of the Mariners’ last four games as underdogs against NL Central opponents.

Milwaukee Brewers Player Prop Facts

• Jackson Chourio has hit a home run in three of the Brewers’ last four home games.
• Kyle Harrison has recorded a win in five of his last six home appearances.
• Kyle Harrison has recorded seven or more strikeouts in five of his last six appearances with the Brewers as home favorites.
• Jackson Chourio has recorded at least one hit in each of his last nine appearances against AL West opponents.
• Jake Bauers ranks 7th amongst qualified players for On Base Percentage (.384) this season.

Seattle Mariners Player Prop Facts

• Cal Raleigh has hit at least one home run in three of the Mariners’ last four games as underdogs against NL Central opponents.
• Bryce Miller has recorded a win in each of his last five appearances against NL Central opponents that held a winning record.
• Bryce Miller has recorded six or more strikeouts in four of his last five appearances against NL opponents.
• Josh Naylor has recorded at least one hit in each of his last 14 appearances with the Mariners as road underdogs.
• Josh Naylor ranks T10th in the league in Steals (24) this season.

Matchup/League Facts

• The Brewers rank 30th in the league for home runs this season (113).
• The Brewers rank 2nd in the league for walks this season (522).
• The Mariners rank 30th in the league for runs scored this season (489).
• The Mariners rank 30th in the league for doubles this season (152).

Seattle Mariners vs. Milwaukee Brewers Prediction

I’m on the Brewers here. I’m not buying into two wins from the Mariners as this team being back on track. and Seattle has had some big time issues against lefties. Kyle Harrison’s been much stronger at home this season and I think the Brew Crew take care of business behind him to get the win. Give me Milwaukee.

Chris Ruffolo's Pick: Milwaukee -165