Twins vs Mariners Prediction, Odds & Player Prop Bets Today – MLB, Jul 31

Seattle Mariners' Cal Raleigh walks to first base during the third inning of a baseball game against the Chicago Cubs in Chicago, Sunday, June 22, 2025.
(AP Photo/Nam Y. Huh)
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  • The Mariners are -190 favorites vs the Twins
  • Twins vs Mariners Over / Under today: 8 Runs
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The Minnesota Twins (+155) visit T-Mobile Park to take on the Seattle Mariners (-190) on July 31, 2026. First pitch is scheduled for 10:10 pm in Seattle, WA.

This season, the Twins are against the spread (ATS), while the Mariners are ATS.

Twins vs Mariners Starting Pitchers Today:

  • Twins starting pitcher: Zebby Matthews 4-8, 5.28 ERA
  • Mariners starting pitcher: Bryce Miller 4-5, 2.74 ERA

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

SpreadOver / UnderMoneyline
Twins+1.5 -140O 8 -115+155
Mariners -1.5 +115U 8 -105-190

Twins vs Mariners Prediction for Today’s Game

Based on recent trends the model predicts the Mariners will win Friday‘s MLB game with 61.2% confidence, factoring in game simulations, recent player performances, starting pitchers and injuries.


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

Best Twins Player Prop Bets Today:

  • Josh Bell has hit the Hits Over in 22 of his last 25 away games (+17.40 Units / 37% ROI)
  • Josh Bell has hit the Total Bases Over in 18 of his last 25 away games (+15.25 Units / 51% ROI)
  • Josh Bell has hit the Hits Runs and RBIs Over in 19 of his last 25 away games (+12.60 Units / 46% ROI)
  • Luke Keaschall has hit the Singles Over in 18 of his last 25 away games (+11.15 Units / 42% ROI)
  • Luke Keaschall has hit the Home Runs Over in 2 of his last 10 away games (+10.00 Units / 100% ROI)

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

Best Mariners Player Prop Best Bets Today:

  • Luke Raley has hit the Runs Under in 19 of his last 20 games (+16.75 Units / 40% ROI)
  • Cal Raleigh has hit the Total Bases Under in 17 of his last 20 games at home (+14.85 Units / 58% ROI)
  • Cole Young has hit the Home Runs Over in 2 of his last 5 games at home (+13.00 Units / 260% ROI)
  • Josh Naylor has hit the Hits Over in 17 of his last 20 games (+10.70 Units / 26% ROI)
  • Luke Raley has hit the Hits Runs and RBIs Under in 17 of his last 25 games at home (+9.25 Units / 29% ROI)
  • The Minnesota Twins have hit the Game Total Over in 32 of their last 50 away games (+14.30 Units / 26% ROI)
  • The Minnesota Twins have hit the 1st Five Innings (F5) Team Total Over in 18 of their last 25 away games (+11.05 Units / 36% ROI)
  • The Minnesota Twins have hit the Team Total Over in 30 of their last 50 away games (+7.65 Units / 13% ROI)
  • The Minnesota Twins have hit the Moneyline in 24 of their last 40 games (+7.50 Units / 15% ROI)
  • The Minnesota Twins have covered the Run Line in 12 of their last 19 away games (+3.25 Units / 11% ROI)
  • The Seattle Mariners have hit the Team Total Under in 32 of their last 50 games (+12.55 Units / 22% ROI)
  • The Seattle Mariners have hit the 1st Five Innings (F5) Team Total Under in 25 of their last 40 games (+8.60 Units / 18% ROI)
  • The Seattle Mariners have hit the Moneyline in 17 of their last 25 games at home (+6.25 Units / 17% ROI)
  • The Seattle Mariners have hit the Game Total Over in 27 of their last 50 games (+6.10 Units / 11% ROI)
  • The Seattle Mariners have covered the Run Line in 10 of their last 20 games at home (+2.55 Units / 12% ROI)

Twins Against the Spread (ATS) Record

Against the spread this season, the Twins are against the Run Line ( Units / ROI).

  • away moneyline record when betting on the Moneyline for ML units Units / ML ROI ROI
  • away total over record when betting on the total runs Over for over units Units / over ROI ROI
  • away total under record when betting on the total runs Under for under units Units / under ROI ROI

Mariners Against the Spread (ATS) Record

Against the spread this season, the Mariners are against the Run Line ( Units / ROI).

  • home moneyline record when betting on the Moneyline for ML units Units / ML ROI ROI
  • home total over record when betting on the total runs Over for over units Units / over ROI ROI
  • home total under record when betting on the total runs Under for under units Units / under ROI ROI

Twins Keys to the Game vs. the Mariners

The Twins are just 16-21 (.432) vs the bottom 10 runs allowed teams this season Today, they face the Mariners (fifth runs allowed).

The Twins are just 3-45 (.062) when trailing entering the 8th inning this season — 5th lowest in MLB; League Avg: .099.

The Twins are just 16-21 (.432) vs the bottom 10 runs allowed teams since the 2025 season Today, they face the Mariners (fifth runs allowed).

The Twins are just 3-45 (.062) when trailing entering the 8th inning since the 2025 season — 5th lowest in MLB; League Avg: .099.

Mariners Keys to the Game vs. the Twins

The Mariners are just 1-47 (.021) when trailing entering the 8th inning this season — 2nd lowest in MLB; League Avg: .099.

The Mariners are just 16-31 (.340) vs bottom 10 scoring offenses this season Today, they face the Twins (ninth in runs scored).

The Mariners are 8-4 (.667) when tied entering the 8th inning this season — 3rd best in MLB; League Avg: .500.

The Mariners are just 1-51 (.019) when trailing entering the 9th inning this season — tied for lowest in MLB; League Avg: .052.

The Twins are batting just .284 on the first pitch of at-bats this season — lowest in MLB.

Twins hitters have been successful in just 62% of their sacrifice bunt attempts this season — 2nd lowest in MLB.

The Twins are batting just .224 against LHP this season — 4th lowest in MLB.

Twins hitters have a 51% QAB rate with runners in scoring position this season — best in MLB.

Mariners hitters have been successful in 100% of their sacrifice bunt attempts this season — tied for best in MLB.

The Mariners are batting just .301 on the first pitch of at-bats this season — 2nd lowest in MLB.

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

The Mariners are batting just .220 against LHP this season — 2nd lowest in MLB.

Twins pitchers have walked 11% of batters when facing the leadoff batter in the inning this season — 2nd highest in MLB.

Twins pitchers have an ERA of 5.22 (456.2 IP) on the road this season — highest in MLB.

Opponents have a groundball rate of just 40% against Twins pitchers this season — 3rd lowest in MLB.

The Twins have allowed 5.55 runs per game (294/53) on the road this season — highest in MLB.

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

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

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

Mariners pitchers have thrown at least two strikes in their first three pitches to 69% of opposing batters this season — highest in MLB.

More MLB Reading:


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Our BetMGM betting authors are experts who focus on individual game matchups & player prop bets with an emphasis on betting odds, lines & predictions.

Our BetMGM betting authors are experts who focus on individual game matchups & player prop bets with an emphasis on betting odds, lines & predictions.