How It Works
Three steps to your Handicap Index
Play a Round
Submit your score in the app. Xordinari records your gross score, course rating, and slope automatically.
We Do the Math
Our engine computes your score differential using the official WHS formula: (Score − Course Rating) × 113 / Slope Rating.
Your Index Updates
After 3+ rounds, your index is calculated from the best differentials and updates after every new round.
The Formula
The official WHS calculation
How many differentials are used?
Included with Every Account
Everything you need to track your index
Auto-calculation after every round
Post a score and your index recalculates immediately — no waiting, no manual refresh, no spreadsheet.
Full differential history & trend chart
Every differential you have ever posted, with a visual trend chart showing your progress over time.
Course handicap converter
See exactly how many strokes you play off at any rated course. Enter the course slope and get your playing handicap instantly.
Shareable handicap card
Generate a clean, shareable card showing your current index and differential history — perfect for league sign-ups.
FAQ
Common questions
Get Started
Track your handicap for free
Post your first round in minutes. Xordinari handles every differential, every update, every course conversion — automatically.
Start Tracking Free