US Chess rating
A US Chess rating is the number the American federation assigns a player from results in its rated events; it is separate from a FIDE rating and from ratings on chess websites, so the numbers should not be swapped.
Also called: USCF rating
Each result in a US Chess rated event moves your number, and the size of the move depends on the gap to your opponent and on how much evidence already sits behind your rating. The federation's published method sets the multiplier K to 800 divided by an effective game count plus the number of games in the event, so a player with few games swings far more than a veteran. A rating counts as established once it rests on more than 25 games, and an unusually strong result can earn a bonus on top of the normal change.
A player can hold separate ratings for regular, quick and blitz play and a parallel set for online events, with no formal link among them beyond how a new rating is started. Official ratings are whole numbers, the lowest possible rating is 100, and a new list is published 12 times a year.
The formula, the pool of opponents and the tuning differ from FIDE's, which fixes K at 40 for a player's first 30 games and then uses 20 or 10. That is why one person can sit at different numbers on the two lists. Treat any conversion chart between lists as a rough guide. Read the entries on the USCF, rating category and the Elo rating next.
It sits close to USCF. The USCF, now branded US Chess, is the official governing body for chess in the United States, a nonprofit that represents the country in FIDE and maintains the national rating system most American tournament players are measured by.
Also worth reading is Blitz rating. A blitz rating is a rating earned in blitz games, kept on a separate list from standard and rapid ratings, because fast play measures a different skill.
How "US Chess rating" applies to your own results depends on where you stand now, and the improvement plans by rating band show what players near your rating work on.
Related terms
The USCF, now branded US Chess, is the official governing body for chess in the United States, a nonprofit that represents the country in FIDE and maintains the national rating system most American tournament players are measured by.
A rating category is a band of ratings, often 200 points wide, that groups players of similar strength so they can be sectioned, paired, prized and described together in a tournament.
An Elo rating is a number that estimates playing strength from results: the gap between two ratings predicts the expected score, and wins and losses move each player's rating up or down.
A FIDE rating is the Elo-based number that the World Chess Federation publishes each month for players with rated games, with a published minimum of 1400, and it is the rating that FIDE titles are measured against.
A rating system is a method that turns game results into a number for each player, rising after wins against strong opponents and falling after losses, so that strength can be compared.
Guides that go further
What a rating measures, how FIDE, Lichess, US Chess and chess.com compute theirs, and why the numbers differ.
Average chess rating and a good chess rating
What share of active Lichess players are rated above 800, 1200, 1500, 1800 or 2000, by time control.
Work out how a FIDE rating changes after a run of games.
Sources
- US Chess, The US Chess Rating System (Glickman and Doan), dated 6 April 2026, Sections 1 and 7, read Oct 21, 2026.
- US Chess FAQ, "Why isn't my rating (or my current rating) in the latest ratings list?", FAQ answer on the latest ratings list, read Oct 21, 2026.
- FIDE Handbook B.02 FIDE Rating Regulations, effective 1 March 2024, Clause 8.3.3, read Oct 21, 2026.
Want to spot this in your own games?
A first lesson starts with your games: George reviews them and builds a study plan around what he finds.