Season Win Percentage Calculator
Calculate your team's season win percentage based on wins, losses, and optional ties (ties count as half a win).
Your win percentage will appear here.
Formula
Win Percentage = (Wins + 0.5 × Ties) / (Wins + Losses + Ties) × 100
Ties are counted as half a win and half a loss, which is the standard convention used by most
professional sports leagues (NFL, NHL, MLS, etc.). If your league does not use ties, simply
leave the Ties field blank or enter 0.
Assumptions & References
- Wins, Losses, and Ties must be non-negative whole numbers.
- At least one game (Win, Loss, or Tie) must have been played.
- Ties are weighted as 0.5 wins, following the standard sports convention (e.g., NFL Official Rules, NHL standings formula).
- Overtime losses (OTL) used in some leagues (e.g., NHL) are not included here; add them to Losses if applicable.
- Win percentage is expressed as a percentage (0–100%) and also commonly shown as a decimal between 0.000 and 1.000 in official standings.
- Reference: The Sporting News Official Rules of Baseball; NFL Operations standings methodology; NHL Official Rules, Rule 84.