USCF Rating Calculator
This USCF rating calculator allows you to estimate rating changes after tournament games using the official US Chess rating system.
Enter your initial rating, opponents and results to calculate expected score, rating change and final rating with a detailed game-by-game breakdown.
Want to understand how your USCF rating is calculated? Learn the formula →
Why use this USCF calculator?
- No login required
- Instant calculation
- Based on US Chess rating formula
How USCF rating is calculated
USCF rating changes are based on expected score and actual results. This tool applies the official formula used in US Chess tournaments to estimate rating changes after each game.
USCF rating formula explained
The rating change depends on the difference between expected score and actual score against each opponent. The expected score is calculated using rating difference and a logistic function.
What is USCF rating?
USCF rating measures player strength in US Chess tournaments and updates dynamically based on game results and opponent ratings.