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Pittsburgh Pirates at Arizona Diamondbacks

MLBregular • 2026 Season
completed
Diamondbacks logo
Diamondbacks
Arizona
9
vs
Pirates logo
Pirates
Pittsburgh
0
ARI 55%45% PIT
Prediction Confidence:
Moderate

Arizona Diamondbacks 55% to win. The biggest signal favoring Diamondbacks:

  • 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: ARI 52% (−3)

Win probability movement

ARI home win probability as the model updated before the game

Home win probability movement60%55%50%May 2May 5

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

Make Your Prediction

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VenueChase Field
Phoenix, Arizona

Team Comparison

Head-to-head snapshot based on our model inputs

Pirates (away)
Diamondbacks (home)
45%
Win probability
55%
0
High-impact factors
0
0
Players ruled out
0

Post-Game Analysis

How our model performed

The Diamondbacks defeated the Pirates 9-0.

Our model predicted the Diamondbacks 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 Diamondbacks and was a notable factor: Base home field advantage applied (no detailed stats available)
  • Weather Impact was neutral and a contributing factor: Weather data not available
  • Offensive Efficiency was neutral and a contributing factor: No offensive stats available for comparison

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

Diamondbacks won 9-0

Diamondbacks won comfortably

Prediction CorrectWe predicted Diamondbacks at 55%

Key Factors

What's driving the win probability for this game

  • Home Field AdvantageFavors Arizona Diamondbacks
  • Weather ImpactNeutral
  • Offensive EfficiencyNeutral
  • Defensive EfficiencyNeutral
  • Head to HeadNeutral
  • Recent FormNeutral
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What's Driving This Game

Each factor's contribution to the final win probability

PIT
ARI
Home Field Advantage
Favours PIT|Favours ARI

Premium feature: factor breakdown

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Model vs. Market

Comparing our model against market-implied probabilities

Diamondbacks

Our Model55%

Pirates

Our Model45%

Understanding the win probability calculation

1 factor not shown (insufficient data)

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

Key Players

Pirates

Braxton AshcraftSP
Noah MurdockRP
Antwone KellyRP
Paul SkenesSP
Bubba ChandlerSP

Diamondbacks

Michael SorokaSP
Ryne NelsonSP
Jose CabreraSP
Kohl DrakeSP
Eduardo RodriguezSP

Learn About Our Analysis

Learn about the factors behind our predictions

Frequently Asked Questions

Diamondbacks has a 55% win probability, while Pirates 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 Chase Field in Phoenix, Arizona.

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