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Philadelphia Phillies at Boston Red Sox

MLBregular • 2026 Season
completed
Red Sox logo
Red Sox
Boston
3
vs
Phillies logo
Phillies
Philadelphia
1
BOS 55%45% PHI
Prediction Confidence:
Moderate

Boston Red Sox 55% to win. The biggest signal favoring Red Sox:

  • Home Field Advantage. Base home field advantage applied (no detailed stats available)

What would change the call

Win probability as of kickoff if a leading factor were even

  • If the home-field edge were neutral: BOS 52% (−3)

Win probability movement

BOS home win probability as the model updated before the game

Home win probability movement60%55%50%May 10May 13

Labels mark updates of 5 points or more, named by the factor that moved most.

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VenueFenway Park
Boston, Massachusetts

Team Comparison

Head-to-head snapshot based on our model inputs

Phillies (away)
Red Sox (home)
45%
Win probability
55%
0
High-impact factors
0
0
Players ruled out
0

Post-Game Analysis

How our model performed

The Red Sox defeated the Phillies 3-1.

Our model predicted the Red Sox would win with 55% confidence -- and they delivered. A close call, but the model's slight lean proved correct.

Looking at the factors our model weighed:

  • Home Field Advantage favored the Red Sox and was a notable factor: Base home field advantage applied (no detailed stats available)
  • Defensive Efficiency was neutral and a contributing factor: No defensive stats available for comparison
  • Head to Head was neutral and a contributing factor: No recent head-to-head history available

This analysis was generated from our model's pre-game assessment compared against the actual result. Factor accuracy helps improve future predictions.

Red Sox won 3-1

Red Sox won in a close game

Prediction CorrectWe predicted Red Sox at 55%

Key Factors

What's driving the win probability for this game

  • Home Field AdvantageFavors Boston Red Sox
  • Defensive EfficiencyNeutral
  • Head to HeadNeutral
  • Recent FormNeutral
  • Offensive EfficiencyNeutral
  • Rest DaysNeutral
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What's Driving This Game

Each factor's contribution to the final win probability

PHI
BOS
Home Field Advantage
Favours PHI|Favours BOS

Premium feature: factor breakdown

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Understanding the win probability calculation

1 factor not shown (insufficient data)

Model version: 1.0.0 • Calculated: 5/13/2026, 8:45:00 AM

Key Players

Phillies

Zack WheelerSP
Alex McFarlaneRP
Andrew PainterSP
Jesus LuzardoSP
Aaron NolaSP

Red Sox

Connelly EarlySP
Sonny GraySP
Eduardo RiveraSP
Patrick SandovalSP
Jake BennettSP

Learn About Our Analysis

Learn about the factors behind our predictions

Frequently Asked Questions

Red Sox has a 55% win probability, while Phillies has a 45% win probability based on our analysis.

Our model considers weather conditions, offensive and defensive efficiency, rest days, injury impact, and historical performance.

This game is being played at Fenway Park in Boston, Massachusetts.

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