For top chess players, the FIDE rating is the most important aspect of the game. Fide stands for Federation Internationale des Echecs, or World Chess Federation in English. It has been in existence since 1924 and, in 1999, it was recognized by the International Sports Federation and the International Olympic Committee. One may hear an FIDE-rated tournament called the Tournament of Nations or the Chess Olympiads.
A player’s FIDE range shows how that player ranks. A rating between 2200 and 2399 is typically associated with the title of Candidate Master or FIDE Master. Players with a rating between 2400 and 2499 usually have the International Master or International Grandmaster title. If a player ranks between 2500 and 2699, then they usually have the International Grandmaster title. In the United States, the United States Chess Federation (USCF) uses a different classification of layers. For example, in the U.S., a rating of 2400 or above reflects a Senior Master title. A player with a rating of 2200 to 2399 plus 300 games above 2200 is given an Original Life Master title.
In order to calculate an FIDE rating, one would take their opponents’ rating average and add the rating difference. The rating difference is based on a player’s tournament percentage score. There is then a lookup table to consult with this percentage score being the key information. The percentage score is the number of points scored divided by how many games have been played. FIDE determines how tournaments are classified, each category being 25 points wide. Women’s tournaments have categories listed as 200 points lower. FIDE updates its ratings every other month, so any listing of live ratings is unofficial.
The highest FIDE rating in history was granted to Garry Kasparov in 1999 and again in 2000, with an FIDE rating of 2851. He was ranked number one in the world 23 times. The woman who has been rated number one in the world most often is Judit Polgar, rated number one 46 times. David Bronstein was a Soviet chess grandmaster. He aided the Soviet team in defeating the U.S. team in the famous USSR versus USA Radio in 1945. Bronstein missed the World Champion title in 1951 and is widely-regarded as one of the best post-war chess layers not to have won a World Champion title.