Postseason Championship Bracket
Ready. Choose your pitching leverage or hit Play 1 October Bracket.
How October Postseason Simulation Works
Log5 & Pythagorean Win Probability
Each head-to-head game evaluates regular-season run differentials using Bill James’ Log5 formulation, adjusting for home field advantage and starter quality.
Short-Series October Volatility
October baseball is notoriously governed by small sample size: even a 105-win superpower holds only a ~58% edge in any single 9-inning game against an 88-win Wild Card contender.
Bullpen & Ace Rotation Leverage
Postseason rotations compress from 5 starters to 3 or 4. Our simulator factors resting aces in Games 1, 4, and 7, alongside bullpen depletion across back-to-back elimination nights.