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St. Louis Cardinals at Kansas City Royals

MLBregular • 2026 Season
completed
Royals logo
Royals
Kansas City
6
vs
Cardinals logo
Cardinals
St. Louis
5
KC 55%45% STL
Prediction Confidence:
Moderate

Kansas City Royals 55% to win. The biggest signal favoring Royals:

  • 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: KC 52% (−3)

Win probability movement

KC home win probability as the model updated before the game

Home win probability movement60%55%50%Jun 16Jun 20

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

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VenueKauffman Stadium
Kansas City, Missouri

Team Comparison

Head-to-head snapshot based on our model inputs

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

Post-Game Analysis

How our model performed

The Royals defeated the Cardinals 6-5.

Our model predicted the Royals would win with 55% confidence -- and they delivered. Even with modest confidence, the model got this one right.

Looking at the factors our model weighed:

  • Home Field Advantage favored the Royals 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
  • Recent Form was neutral and a contributing factor: No recent form data available

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

Royals won 6-5

Royals won in a close game

Prediction CorrectWe predicted Royals at 55%

Key Factors

What's driving the win probability for this game

  • Home Field AdvantageFavors Kansas City Royals
  • Defensive EfficiencyNeutral
  • Recent FormNeutral
  • InjuriesNeutral
  • Weather ImpactNeutral
  • Offensive EfficiencyNeutral
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What's Driving This Game

Each factor's contribution to the final win probability

STL
KC
Home Field Advantage
Favours STL|Favours KC

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: 6/20/2026, 12:00:10 AM

Key Players

Cardinals

Matthew LiberatoreSP
Quinn MathewsSP
Chase HamptonSP
Andre PallanteSP
Michael McGreevySP

Royals

Randy DobnakSP
Noah CameronSP
Seth LugoSP
Stephen KolekSP
Michael WachaSP

Learn About Our Analysis

Learn about the factors behind our predictions

Frequently Asked Questions

Royals has a 55% win probability, while Cardinals 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 Kauffman Stadium in Kansas City, Missouri.

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