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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. Most of the systems are used to ...
Approximately 50,000 chess players have USCF ratings, of which approximately 2,500 are rated 2000 or better. Thus, chess experts are in the top 5% of all USCF tournament chess players. Since 2008, USCF has also awarded Candidate Master titles to players that achieve five performance-based 'norms' in tournaments and also hold a rating above 2000 ...
In 1960, the USCF adopted a more reliable rating system invented by Arpad Elo, a college professor of physics who was a chess master. Elo worked with USCF for many years. The system he invented, or a variant of it, was later adopted by FIDE, and is utilized in other games and sports, including USA Today's college football and basketball ...
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.
Unlike the Grandmaster and International Master titles, there is no requirement for a player to achieve norms. The usual way for a player to qualify for the FIDE Master title is by achieving an Elo rating of 2300 or more. [6] There are also many ways the title can be gained by players with a rating of at least 2100 but less than 2300; they include:
At age 15, he became the youngest African American to earn the US Chess Federation (USCF) title of National Master (NM), a record since surpassed by Justus Williams and then Joshua Colas. [1] [2] Korley switched federations from the United States to Denmark in 2014 and has triple citizenship through Ghana as well. [3]
He has a peak FIDE rating of 2420. When Williams was 12 years old, he became the youngest African American to earn the US Chess Federation (USCF) title of National Master (NM), surpassing Kassa Korley and since surpassed by several players, including current record-holder Brewington Hardaway.
Chess players ordered by peak FIDE rating in 1980s Country Player Peak rating in 1980s Achieved 1 Garry Kasparov: 2775 1989-01 2 Anatoly Karpov: 2755 1989-07 3 Mikhail Tal: 2705 1980-01 4 Viktor Korchnoi: 2695 1980-01 5 Jan Timman: 2675 1988-01 6 Nigel Short: 2665 1988-07 7 Artur Yusupov: 2660 1986-07 Vasyl Ivanchuk: 2660 1989-07 9 Lajos ...