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Codeforces (Russian: Коудфорсес) is a website that hosts competitive programming contests. [1] It is maintained by a group of competitive programmers from ITMO University led by Mikhail Mirzayanov. [2] Since 2013, Codeforces claims to surpass Topcoder in terms of active contestants. [3] As of 2019, it has over 600,000 registered users ...
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 .
The Elo rating system has also been noted in dating apps, such as in the matchmaking app Tinder, which uses a variant of the Elo rating system. [84] The YouTuber Marques Brownlee and his team used Elo rating system when they let people to vote between digital photos taken with different smartphone models launched in 2022. [85]
A sports rating system is a system that analyzes the results of sports competitions to provide ratings for each team or player. Common systems include polls of expert voters, crowdsourcing non-expert voters, betting markets, and computer systems.
Codeforces peak rating 4009 (30 August 2024) Gennady Korotkevich ( Belarusian : Генадзь Караткевіч , Hienadź Karatkievič , Russian : Геннадий Короткевич ; born 25 September 1994) is a Belarusian competitive sport programmer who has won major international competitions since the age of 11, as well as numerous ...
The Universal Rating System (URS) is a system for rating chess players devised by Jeff Sonas, Mark Glickman, J. Isaac Miller and Maxime Rischard.It was introduced to determine seedings and qualifications for the 2017 Grand Chess Tour.
In the formula above E is the ECF rating (not Elo) and F is the FIDE rating. The ECF grading system was recalibrated in 2009. Various other conversion formulae have been used, but usually relate to the forerunner. This grades some games outside Federation matches where opponents lack an ECF grade. It is designed to give a best estimate conversion.
TrueSkill is a skill-based ranking system developed by Microsoft for use with video game matchmaking on the Xbox network.Unlike the popular Elo rating system, which was initially designed for chess, TrueSkill is designed to support games with more than two players.