The Universal Rating System (URS) is a system for rating
chess
Chess is a board game for two players, called White and Black, each controlling an army of chess pieces in their color, with the objective to checkmate the opponent's king. It is sometimes called international chess or Western chess to disti ...
players devised by
Jeff Sonas Jeff Sonas is a statistical chess analyst who invented the Chessmetrics system for rating chess players, which is intended as an improvement on the Elo rating system. He is the founder and proprietor of the Chessmetrics.com website, which gives So ...
,
Mark Glickman
The Glicko rating system and Glicko-2 rating system are methods of assessing a player's strength in games of skill, such as chess and Go. The Glicko rating system was invented by Mark Glickman in 1995 as an improvement on the Elo rating system, a ...
, J. Isaac Miller and Maxime Rischard. It was introduced to determine seedings and qualification for the 2017
Grand Chess Tour
The Grand Chess Tour (GCT) is a circuit of chess tournaments where players compete for multiple prize pools. Major tournaments that have been featured in the Grand Chess Tour include Norway Chess, the Sinquefield Cup, and the London Chess Classic. ...
.
The main difference from
FIDE
The International Chess Federation or World Chess Federation, commonly referred to by its French acronym FIDE ( Fédération Internationale des Échecs), is an international organization based in Switzerland that connects the various national c ...
's
Elo rating system
The Elo rating system is a method for calculating the relative skill levels of players in zero-sum games such as chess. It is named after its creator Arpad Elo, a Hungarian-American physics professor.
The Elo system was invented as an improved ch ...
is the combination of all three time controls (classical, rapid and blitz) into a single rating list, whereas FIDE maintains three different rating lists.
Development
The first rating list was published in January 2017, following two years of research.
Monthly rating lists from August 2016 onwards have been retroactively published.
The number one player in every rating so far has been
Magnus Carlsen
Sven Magnus Øen Carlsen (born 30 November 1990) is a Norwegian chess grandmaster who is the reigning five-time World Chess Champion. He is also a three-time World Rapid Chess Champion and five-time World Blitz Chess Champion. Carlsen has h ...
, with
Hikaru Nakamura
Christopher Hikaru Nakamura[Chess rating systems
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 Correspond ...](_blank)
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Chessmetrics
Chessmetrics is a system for rating chess players devised by Jeff Sonas. It is intended as an improvement over the Elo rating system.
Implementation
Chessmetrics is a weighted average of past performance. The score considers a player's win percen ...
Notes
External links
Universal Rating System website
{{Sports rating systems
Chess rating systems
2017 in chess