Phillies vs Red Sox Prediction, Odds & Player Prop Bets Today – MLB, May 12

(AP Photo/Michael Dwyer)
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  • The Phillies are -145 favorites vs the Red Sox
  • Phillies vs Red Sox Over / Under today: 8.5 Runs
  • Phillies / Red Sox TV Channel: NESN | NSPA

The Philadelphia Phillies (-145) visit Fenway Park to take on the Boston Red Sox (+120) on May 12, 2026. First pitch is scheduled for 6:45 pm in Boston, MA.

This season, the Phillies are 19-22 against the spread (ATS), while the Red Sox are 14-25 ATS.

Phillies vs Red Sox Starting Pitchers Today:

  • Phillies starting pitcher: Zack Wheeler 1-0, 3.12 ERA
  • Red Sox starting pitcher: Jovani Moran 0-0, 2.96 ERA

Phillies vs. Red Sox Odds, Run Line, Over/Under & Moneyline

SpreadOver / UnderMoneyline
Phillies-1.5 +118O 8.5 -115-145
Red Sox +1.5 -145U 8.5 -105+120

Phillies vs Red Sox Prediction for Today’s Game

Based on recent trends the model predicts the Phillies will win Tuesday‘s MLB game with 58.1% 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 Phillies players for Tuesday‘s game, looking at profitable historical betting trends:

Best Phillies Player Prop Bets Today:

  • Bryson Stott has hit the Home Runs Over in 3 of his last 9 games (+18.50 Units / 206% ROI)
  • Brandon Marsh has hit the Hits Over in his last 15 games (+15.00 Units / 48% ROI)
  • Brandon Marsh has hit the Singles Over in 14 of his last 15 games (+13.70 Units / 81% ROI)
  • Bryce Harper has hit the Walks Over in 15 of his last 25 away games (+10.65 Units / 42% ROI)
  • Adolis Garcia has hit the Runs Under in 13 of his last 15 away games (+10.30 Units / 41% ROI)

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

Best Red Sox Player Prop Best Bets Today:

  • Jarren Duran has hit the Home Runs Over in 3 of his last 9 games (+13.70 Units / 152% ROI)
  • Marcelo Mayer has hit the Runs Under in 21 of his last 25 games (+12.40 Units / 24% ROI)
  • Wilyer Abreu has hit the Walks Over in 12 of his last 20 games (+11.55 Units / 58% ROI)
  • Marcelo Mayer has hit the Singles Under in 16 of his last 20 games at home (+10.50 Units / 32% ROI)
  • Trevor Story has hit the Total Bases Under in 16 of his last 20 games at home (+10.35 Units / 33% ROI)
  • The Philadelphia Phillies have hit the Team Total Under in 28 of their last 45 away games (+9.55 Units / 18% ROI)
  • The Philadelphia Phillies have hit the 1st Five Innings (F5) Team Total Under in 30 of their last 50 games (+7.35 Units / 12% ROI)
  • The Philadelphia Phillies have hit the Moneyline in 11 of their last 15 games (+5.60 Units / 24% ROI)
  • The Philadelphia Phillies have hit the Game Total Over in 12 of their last 19 games (+5.30 Units / 25% ROI)
  • The Philadelphia Phillies have hit the 1st Five Innings (F5) Moneyline in 5 of their last 7 away games (+3.20 Units / 40% ROI)
  • The Boston Red Sox have hit the Team Total Under in 34 of their last 50 games at home (+16.75 Units / 29% ROI)
  • The Boston Red Sox have hit the Game Total Under in 32 of their last 50 games at home (+14.25 Units / 26% ROI)
  • The Boston Red Sox have hit the 1st Five Innings (F5) Team Total Under in 26 of their last 40 games at home (+8.95 Units / 17% ROI)
  • The Boston Red Sox have hit the 1st Five Innings (F5) Moneyline in 9 of their last 16 games (+3.70 Units / 19% ROI)
  • The Boston Red Sox have hit the Moneyline in 4 of their last 6 games (+1.70 Units / 23% ROI)

Phillies Against the Spread (ATS) Record

Against the spread this season, the Phillies are 11-30 against the Run Line (-21.6 Units / -45.86% ROI).

  • 19-22 when betting on the Moneyline for -10 Units / -16.26% ROI
  • 22-17 when betting on the total runs Over for +3.35 Units / 7.39% ROI
  • 17-22 when betting on the total runs Under for -6.9 Units / -15.38% ROI

Red Sox Against the Spread (ATS) Record

Against the spread this season, the Red Sox are 14-25 against the Run Line (-10.9 Units / -23.09% ROI).

  • 17-23 when betting on the Moneyline for -11.8 Units / -23.32% ROI
  • 19-20 when betting on the total runs Over for -3.2 Units / -7.24% ROI
  • 20-19 when betting on the total runs Under for -0.85 Units / -1.94% ROI

Red Sox vs Phillies Home Run Prop Bets Today

Yes
Kyle Schwarber +300
Wilyer Abreu +475
Bryce Harper +475
Willson Contreras +550
Adolis Garcia +600

Red Sox vs Phillies Total Hits Prop Bets Today

Over Under
Brandon Marsh 0.5 -275 0.5 +190
Masataka Yoshida 0.5 -250 0.5 +180
J.T. Realmuto 0.5 -220 0.5 +165
Jarren Duran 0.5 -210 0.5 +155
Justin Crawford 0.5 -210 0.5 +155

Red Sox vs Phillies Strikeout Prop Bets Today

Over Under
Brandon Marsh 0.5 -275 0.5 +195
Ceddanne Rafaela 0.5 -235 0.5 +170
Marcelo Mayer 0.5 -225 0.5 +165
J.T. Realmuto 0.5 -220 0.5 +165
Trea Turner 0.5 -210 0.5 +155

Phillies Keys to the Game vs. the Red Sox

The Phillies are just 0-11 (.000) when allowing 2 or more home runs this season — tied for lowest in MLB; League Avg: .300.

The Phillies are just 3-9 (.250) when their opponents score in the first inning this season — tied for 4th lowest in MLB; League Avg: .374.

The Phillies are just 5-20 (.200) when scoring 4 or fewer runs this season — 4th lowest in MLB; League Avg: .279.

The Phillies are 20-66 (.233) when trailing entering the 7th inning since the 2025 season — best in MLB; League Avg: .127.

Red Sox Keys to the Game vs. the Phillies

The Red Sox are just 2-12 (.143) when their opponents score in the first inning this season — 2nd lowest in MLB; League Avg: .374.

The Red Sox are just 7-12 (.368) at home this season — 3rd lowest in MLB; League Avg: .537.

The Red Sox are just 0-21 (.000) when trailing entering the 9th inning this season — tied for lowest in MLB; League Avg: .051.

The Red Sox are just 3-6 (.333) vs bottom 10 scoring offenses this season Today, they face the Phillies (21st in runs scored).

The Phillies are batting just .213 on the road this season — 2nd lowest in MLB.

Phillies hitters have drawn walks in 8% of their PA’s against RHP this season — 3rd lowest in MLB.

16% of Phillies’ plate appearances have been three-ball counts (177/1,076 PA’s) against RHP this season — 2nd lowest in MLB.

Phillies hitters are slugging just .222 against pitchers who have thrown at least 80 pitches in a game this season — lowest in MLB.

The Red Sox are batting just .276 on the first pitch of at-bats this season — 2nd lowest in MLB.

Red Sox hitters are slugging just .323 at home this season — 2nd lowest in MLB.

The Red Sox are batting .272 against LHP this season — tied for best in MLB.

Red Sox hitters are slugging just .334 against RHP this season — lowest in MLB.

Phillies pitchers have a strikeout rate of 46% with two-strikes this season — best in MLB.

Phillies pitchers have induced opposing hitters to ground into just 19 double plays in 348 opportunities (6%) this season — lowest in MLB.

Phillies pitchers have walked 8% of batters this season — 2nd best in MLB.

Opponents have a groundball batting average of .292 against Phillies pitchers this season — highest in MLB.

Red Sox pitchers have walked 5% of batters when facing the leadoff batter in the inning this season — best in MLB.

Opponents have a miss rate of just 23% against Red Sox pitchers this season — 5th lowest in MLB.

The Red Sox have allowed 0.90 runs per game (36/40) in late innings this season — best in MLB.

Red Sox pitchers have 42 three-pitch strikeouts this season — 4th fewest 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.