Boston Red Sox vs Seattle Mariners Prediction, Odds & Player Prop Bets Today – MLB, Jun 18

  • The Boston Red Sox are -120 favorites vs the Seattle Mariners
  • Boston Red Sox vs Seattle Mariners Over / Under today: 6.5 Runs
  • Boston Red Sox / Seattle Mariners TV Channel: RTNW | NESN | MLBN

The Boston Red Sox (-120) visit T-Mobile Park to take on the Seattle Mariners (+100) on Wednesday, June 18, 2025. First pitch is scheduled for 4:10pm EDT in Seattle, WA, WA.

This season, the Boston Red Sox are 38-37 against the spread (ATS), while the Seattle Mariners are 32-40 ATS.

Boston Red Sox vs Seattle Mariners Starting Pitchers Today:

  • Boston Red Sox starting pitcher: , ERA
  • Seattle Mariners starting pitcher: , ERA

Boston Red Sox vs. Seattle Mariners Odds, Run Line, Over/Under & Moneyline

SpreadOver / UnderMoneyline
Boston Red Sox-1.5 +154O 6.5 +100-120
Seattle Mariners +1.5 -190U 6.5 -120+100

Boston Red Sox vs Seattle Mariners Prediction for Today’s Game

Based on recent trends the model predicts the will win Wednesday‘s MLB game with 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 Boston Red Sox players for Wednesday‘s game, looking at profitable historical betting trends:

Best Boston Red Sox Player Prop Bets Today:

  • David Hamilton has hit the Home Runs Over in 2 of his last 9 away games (+11.00 Units / 122% ROI)
  • Abraham Toro has hit the Total Bases Over in 14 of his last 20 games (+8.20 Units / 28% ROI)
  • Garrett Crochet has hit the Strikeouts Over in 9 of his last 10 away games (+7.85 Units / 63% ROI)
  • David Hamilton has hit the Hits Under in 16 of his last 25 games (+7.65 Units / 28% ROI)
  • David Hamilton has hit the Runs Under in 9 of his last 10 games (+7.10 Units / 29% ROI)

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

Best Seattle Mariners Player Prop Best Bets Today:

  • Jorge Polanco has hit the Runs Under in 20 of his last 25 games (+12.50 Units / 31% ROI)
  • Cal Raleigh has hit the Hits Over in 20 of his last 25 games (+11.10 Units / 23% ROI)
  • J.P. Crawford has hit the Singles Over in 17 of his last 25 games at home (+9.95 Units / 37% ROI)
  • J.P. Crawford has hit the Walks Over in 15 of his last 25 games (+9.35 Units / 37% ROI)
  • Donovan Solano has hit the Home Runs Over in 1 of his last 4 games (+9.00 Units / 225% ROI)
  • The Boston Red Sox have covered the 1st Five Innings (F5) Run Line in 18 of their last 25 away games (+12.90 Units / 45% ROI)
  • The Boston Red Sox have hit the Team Total Under in 39 of their last 65 games (+9.55 Units / 12% ROI)
  • The Boston Red Sox have hit the Moneyline in 8 of their last 10 games (+8.50 Units / 78% ROI)
  • The Boston Red Sox have hit the 1st Five Innings (F5) Moneyline in 17 of their last 31 away games (+8.45 Units / 22% ROI)
  • The Boston Red Sox have covered the Run Line in 21 of their last 36 away games (+6.50 Units / 14% ROI)
  • The Seattle Mariners have hit the Game Total Over in 19 of their last 29 games at home (+9.40 Units / 30% ROI)
  • The Seattle Mariners have hit the 1st Five Innings (F5) Team Total Over in 38 of their last 66 games (+7.40 Units / 9% ROI)
  • The Seattle Mariners have hit the Team Total Under in 14 of their last 22 games (+5.30 Units / 21% ROI)
  • The Seattle Mariners have covered the Run Line in 15 of their last 29 games at home (+3.30 Units / 9% ROI)
  • The Seattle Mariners have hit the 1st Five Innings (F5) Moneyline in 17 of their last 32 games at home (+2.35 Units / 5% ROI)

Boston Red Sox Against the Spread (ATS) Record

Against the spread this season, the Boston Red Sox are 37-37 against the Run Line (+0.7 Units / 0.75% ROI).

  • 38-37 when betting on the Moneyline for -6.31 Units / -6.4% ROI
  • 34-40 when betting on the total runs Over for -10.02 Units / -12.11% ROI
  • 40-34 when betting on the total runs Under for +2.8 Units / 3.4% ROI

Seattle Mariners Against the Spread (ATS) Record

Against the spread this season, the Seattle Mariners are 32-40 against the Run Line (-7.6 Units / -8.59% ROI).

  • 37-35 when betting on the Moneyline for -7.8 Units / -8.1% ROI
  • 37-31 when betting on the total runs Over for +2.95 Units / 3.74% ROI
  • 31-37 when betting on the total runs Under for -9.87 Units / -12.39% ROI

Seattle Mariners vs Boston Red Sox Home Run Prop Bets Today

Over Under
Cal Raleigh (SEA) 0.5 +375 0.5 -525
Jarren Duran (BOS) 0.5 +500 0.5 -700
Randy Arozarena (SEA) 0.5 +600 0.5 -1000
Mitch Garver (SEA) 0.5 +625 0.5 -1000
Julio Rodriguez (SEA) 0.5 +625 0.5 -1000

Seattle Mariners vs Boston Red Sox Total Hits Prop Bets Today

Over Under
Jarren Duran (BOS) 0.5 -235 0.5 +180
Julio Rodriguez (SEA) 0.5 -220 0.5 +165
Abraham Toro (BOS) 0.5 -200 0.5 +150
Ceddanne Rafaela (BOS) 0.5 -160 0.5 +125
Carlos Narvaez (BOS) 0.5 -160 0.5 +125

Seattle Mariners vs Boston Red Sox RBI Prop Bets Today

Over Under
Cal Raleigh (SEA) 0.5 +185 0.5 -250
Jarren Duran (BOS) 0.5 +200 0.5 -275
Carlos Narvaez (BOS) 0.5 +210 0.5 -295
Roman Anthony (BOS) 0.5 +220 0.5 -300
Abraham Toro (BOS) 0.5 +220 0.5 -300

Seattle Mariners vs Boston Red Sox Strikeout Prop Bets Today

Over Under
Garrett Crochet (BOS) 7.5 -155 7.5 +120
Luis Castillo (SEA) 6.5 +100 6.5 -130

starting pitcher – away

Seattle Mariners Starting Pitcher Stats & Trends

starting pitcher – home

Boston Red Sox Keys to the Game vs. the Seattle Mariners

keys to the game – away

Seattle Mariners Keys to the Game vs. the Boston Red Sox

keys to the game – home

team hitters – away

team hitters – home

team pitchers – away

team pitchers – home

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.