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A chess rating system is a system used in chess to estimate the strength of a player, based on their performance versus other players. They are used by organizations such as FIDE , the US Chess Federation (USCF or US Chess), International Correspondence Chess Federation , and the English Chess Federation .
Arpad Elo was a chess master and an active participant in the United States Chess Federation (USCF) from its founding in 1939. [4] The USCF used a numerical ratings system devised by Kenneth Harkness to enable members to track their individual progress in terms other than tournament wins and losses.
The International Chess Federation (FIDE) governs international chess competition. Each month, FIDE publishes the lists "Top 100 Players", "Top 100 Women", "Top 100 Juniors" and "Top 100 Girls" and rankings of countries according to the average rating of their top 10 players and top 10 female players in the classical time control.
A norm in chess is awarded if a player has a performance rating in a tournament at or above a threshold rating. As an example, for the Grandmaster (GM) title, a player must achieve three GM norms corresponding to performance ratings of at least 2600 against opponents with an average rating of 2380 and must also have reached a required peak live ...
FIDE introduced the WGM title in 1976, joining the previously introduced lower-ranking title, Woman International Master. [21] The usual way to obtain the WGM title is similar to the open titles, where a FIDE rating of 2300 and three norms of 2400 performance rating is required against opponents who are higher rated than 2130 on average. [22]
The following is a list of the players ranked number one female on the FIDE rating system from the first official list in July 1971 to the present day, along with their ratings during the periods in question. A rating denoted with bold text followed by an asterisk (*) is a career high rating.
Chess players ordered by peak FIDE rating in 1970s Country Player Peak rating in 1970s Achieved 1 Bobby Fischer: 2785 1972-07 2 Anatoly Karpov: 2725 1978-01 3 Viktor Korchnoi: 2695 1979-01 4 Boris Spassky: 2690 1971-07 5 Bent Larsen: 2660 1971-07 Mikhail Tal: 2660 1973-07 7 Lajos Portisch: 2650 1973-07 8 Tigran Petrosian: 2645 1972-07 Lev ...
Chess expert is a title given by the United States Chess Federation (USCF). It is awarded to chess players rated from 2000 to 2199. Players rated above that are masters, while players below that are class players. Approximately 50,000 chess players have USCF ratings, of which approximately 2,500 are rated 2000 or better.