• The Brewers are -135 favorites vs the Mariners
• Mariners vs Brewers Over / Under today: 8 Runs
• Mariners / Brewers TV Channel: MRTV | BRTV

The Seattle Mariners (+110) visit American Family Field to take on the Milwaukee Brewers (-135) on August 20, 2026. First pitch is scheduled for 2:10 pm in Milwaukee, WI.

This season, the Mariners are 60-67 against the spread (ATS), while the Brewers are 66-61 ATS.

Mariners vs Brewers Starting Pitchers Today:

• Mariners starting pitcher: George Kirby 8-9, 3.90 ERA
• Brewers starting pitcher: Robert Gasser 3-5, 4.55 ERA

Mariners vs. Brewers Odds, Run Line, Over/Under & Moneyline

Mariners vs Brewers Prediction for Today’s Game

Based on recent trends the model predicts the Brewers will win Thursday‘s MLB game with 54.2% confidence, factoring in game simulations, recent player performances, starting pitchers and injuries.

Bet now on Mariners vs Brewers and all games with BetMGM

We’ve highlighted some favorite MLB player prop bets for Mariners players for Thursday‘s game, looking at profitable historical betting trends:

Best Mariners Player Prop Bets Today:

• George Kirby has hit the Hits Allowed Over in 20 of his last 25 games (+15.50 Units / 51% ROI)
• George Kirby has hit the Strikeouts Under in 18 of his last 25 games (+9.95 Units / 32% ROI)
• George Kirby has hit the Walks Allowed Over in 14 of his last 25 games (+6.20 Units / 20% ROI)
• Victor Robles has hit the Hits Runs and RBIs Under in 13 of his last 20 away games (+5.75 Units / 22% ROI)
• George Kirby has hit the Pitching Outs Under in 9 of his last 15 games (+4.10 Units / 21% ROI)

And here are some favorite MLB player prop bets for Brewers players for Thursday‘s game, looking at profitable historical betting trends:

Best Brewers Player Prop Best Bets Today:

• Robert Gasser has hit the Walks Allowed Under in 7 of his last 9 games (+4.25 Units / 30% ROI)
• Robert Gasser has hit the Strikeouts Under in 4 of his last 5 games at home (+3.00 Units / 49% ROI)
• Robert Gasser has hit the Pitching Outs Over in 4 of his last 6 games at home (+1.95 Units / 27% ROI)
• Robert Gasser has hit the Earned Runs Under in 4 of his last 6 games at home (+1.80 Units / 23% ROI)
• Robert Gasser has hit the Hits Allowed Under in 6 of his last 10 games (+1.45 Units / 12% ROI)

Mariners Best Bets Today:

• The Seattle Mariners have hit the Game Total Over in 25 of their last 40 away games (+11.05 Units / 25% ROI)
• The Seattle Mariners have hit the Team Total Under in 30 of their last 50 games (+8.95 Units / 16% ROI)
• The Seattle Mariners have hit the 1st Five Innings (F5) Team Total Under in 30 of their last 50 games (+8.45 Units / 14% ROI)
• The Seattle Mariners have covered the 1st Five Innings (F5) Run Line in 6 of their last 8 games (+3.70 Units / 37% ROI)
• The Seattle Mariners have hit the Moneyline in 4 of their last 6 games (+2.60 Units / 43% ROI)

Brewers Best Bets Today:

• The Milwaukee Brewers have covered the Run Line in 28 of their last 50 games at home (+12.15 Units / 22% ROI)
• The Milwaukee Brewers have hit the 1st Five Innings (F5) Team Total Over in 17 of their last 24 games (+10.50 Units / 37% ROI)
• The Milwaukee Brewers have hit the Team Total Over in 31 of their last 50 games at home (+10.30 Units / 18% ROI)
• The Milwaukee Brewers have hit the Moneyline in 34 of their last 50 games at home (+9.25 Units / 11% ROI)
• The Milwaukee Brewers have hit the Game Total Under in 29 of their last 50 games at home (+7.15 Units / 13% ROI)

Mariners Against the Spread (ATS) Record

Against the spread this season, the Mariners are 48-78 against the Run Line (-25.45 Units / -17.56% ROI).

• 60-67 when betting on the Moneyline for -23.1 Units / -13.66% ROI
• 63-57 when betting on the total runs Over for +0.5 Units / 0.36% ROI
• 57-63 when betting on the total runs Under for -12 Units / -8.61% ROI

Brewers Against the Spread (ATS) Record

Against the spread this season, the Brewers are 66-61 against the Run Line (+14.05 Units / 9.62% ROI).

• 78-49 when betting on the Moneyline for +10.85 Units / 5.83% ROI
• 55-69 when betting on the total runs Over for -20.55 Units / -14.72% ROI
• 69-55 when betting on the total runs Under for +8.75 Units / 6.25% ROI

Brewers vs Mariners Home Run Prop Bets Today

Brewers vs Mariners Total Hits Prop Bets Today

Brewers vs Mariners Strikeout Prop Bets Today

Mariners Keys to the Game vs. the Brewers

The Mariners are just 0-6 (.000) when trailing entering the 9th inning this season — tied for lowest in MLB.

The Mariners are just 0-6 (.000) when trailing entering the 9th inning since the 2025 season — tied for lowest in MLB.

The Mariners were 12-55 (.179) when trailing entering the 7th inning in the 2025 season — 3rd best in MLB; League Avg: .124.

The Mariners were 72-1 (.986) when leading entering the 9th inning in the 2024 season — tied for 2nd best in MLB; League Avg: .949.

Brewers Keys to the Game vs. the Mariners

The Brewers were 71-7 (.910) when they scored 5 or more runs in the 2025 season — 2nd best in MLB; League Avg: .797.

The Brewers were 97-65 (.599) in the 2025 season — best in MLB; League Avg: .500.

The Brewers were 74-4 (.949) when leading entering the 8th inning in the 2024 season — 3rd best in MLB; League Avg: .899.

The Brewers were 93-69 (.574) in the 2024 season — tied for 4th best in MLB; League Avg: .500.

Mariners Hitting Stats & Trends

Mariners hitters are slugging just .476 on the first pitch of at-bats this season — lowest in MLB.

The Mariners are batting just .216 against LHP this season — lowest in MLB.

Mariners hitters are slugging just .342 against LHP this season — 2nd lowest in MLB.

The Mariners are batting just .222 at home this season — 2nd lowest in MLB.

Brewers Hitting Stats & Trends

The Brewers are batting .390 on the first pitch of at-bats this season — best in MLB.

Brewers hitters have come to the plate with runners in scoring position in 1,464 of their 4,930 plate appearances (30%) this season — highest in MLB.

Brewers hitters have drawn walks in 11% of their PA’s this season — tied for best in MLB.

Brewers hitters have come to the plate with runners in scoring position in 784 of their 2,193 plate appearances (36%) versus relief pitchers this season — highest in MLB.

Mariners Pitching Stats & Trends

Mariners pitchers have a first-pitch strike rate of 66% this season — highest in MLB.

Mariners pitchers have walked 7% of batters this season — best in MLB.

Mariners pitchers have walked 6% of batters when facing the leadoff batter in the inning this season — best in MLB.

The Mariners pitchers have allowed their opponents to score first in just 40% of their games at home this season — 2nd lowest in MLB.

Brewers Pitching Stats & Trends

The Brewers have won 58% of home games in which their opponents scored first this season — highest in MLB.

Brewers pitchers have a strikeout rate of 28% in the first 5 innings this season — best in MLB.

Opponents have a miss rate of 28% against Brewers pitchers this season — 3rd best in MLB.

Opponents have a groundball batting average of just .212 against Brewers pitchers with runners on base this season — 2nd best in MLB.

More MLB Reading:

• Home Run Predictions Today
• Best NRFI Bets Today
• Strikeout Props Today
• MLB Starting Pitchers Today

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