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St. Louis Cardinals at Pittsburgh Pirates

MLBregular • 2026-2027 Season
completed
Pirates logo
Pirates
Pittsburgh
1
vs
Cardinals logo
Cardinals
St. Louis
5
PIT 56%44% STL
Prediction Confidence:
Moderate

Pittsburgh Pirates 56% to win. The top 2 signals favoring Pirates:

  • Home Field Advantage. Base home field advantage applied (no detailed stats available)
  • ELO Rating. Pirates ELO 1519 vs Cardinals ELO 1471 (diff: +48)

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VenuePNC Park
Pittsburgh, Pennsylvania

Team Comparison

Head-to-head snapshot based on our model inputs

Cardinals (away)
Pirates (home)
44%
Win probability
56%
0
High-impact factors
0
0
Players ruled out
0

Post-Game Analysis

How our model performed

The Cardinals defeated the Pirates 5-1.

Our model predicted the Pirates would win with 56% confidence, but the Cardinals pulled off the upset. These outcomes are what keep sports compelling -- and help our model learn.

Looking at the factors our model weighed:

  • Home Field Advantage favored the Pirates and was a notable factor: Base home field advantage applied (no detailed stats available)
  • Rest Days was neutral and a contributing factor: Similar rest: Pirates (1 day rest) vs Cardinals (1 day rest)
  • Weather Impact was neutral and a contributing factor: Weather data not available

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

Cardinals won 1-5

Cardinals won by a solid margin

Prediction IncorrectWe predicted Pirates at 56%

Key Factors

What's driving the win probability for this game

  • Home Field AdvantageFavors Pittsburgh Pirates
  • Rest DaysNeutral
  • Weather ImpactNeutral
  • Offensive EfficiencyNeutral
  • Defensive EfficiencyNeutral
  • Head to HeadNeutral
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What's Driving This Game

Each factor's contribution to the final win probability

STL
PIT
Home Field Advantage
Favours STL|Favours PIT

Premium feature: factor breakdown

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Understanding the win probability calculation

1 factor not shown (insufficient data)

Model version: 1.1.0 • Calculated: 9/23/2026, 10:30:03 PM

Key Players

Cardinals

Andre PallanteSP
Michael McGreevySP
Chase HamptonSP
Quinn MathewsSP
Kyle LeahySP

Pirates

Jared JonesSP
Noah MurdockSP
Paul SkenesSP
Antwone KellySP
Mitch KellerSP

Learn About Our Analysis

Learn about the factors behind our predictions

Frequently Asked Questions

Pirates has a 56% win probability, while Cardinals has a 44% 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 PNC Park in Pittsburgh, Pennsylvania.

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St. Louis Cardinals at Pittsburgh Pirates - Sep 23, 2026 - MLB | PlayDecoded