24 Facts About Elo rating

Elo rating system is a method for calculating the relative skill levels of players in zero-sum games such as chess.

Arpad Elo rating was a master-level chess player and an active participant in the United States Chess Federation from its founding in 1939.

On behalf of the USCF, Elo rating devised a new system with a more sound statistical basis.

Elo rating's system replaced earlier systems of competitive rewards with a system based on statistical estimation.

Elo rating's central assumption was that the chess performance of each player in each game is a normally distributed random variable.

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Elo rating thought of a player's true skill as the mean of that player's performance random variable.

Elo rating did not specify exactly how close two performances ought to be to result in a draw as opposed to a win or loss.

Elo rating's system was adopted by the World Chess Federation in 1970.

Phrase "Elo rating" is often used to mean a player's chess rating as calculated by FIDE.

Highest ever FIDE Elo rating was 2882, which Magnus Carlsen had on the May 2014 list.

FIDE calculates performance Elo rating by means of the formula: Opponents' Rating Average + Rating Difference.

Elo rating made references to the papers of Good, David, Trawinski and David, and Buhlman and Huber.

Elo rating's original suggestion, which is still widely used, was a simple linear adjustment proportional to the amount by which a player over-performed or under-performed their expected score.

However, players tend to enter the system as novices with a low Elo rating and retire from the system as experienced players with a high Elo rating.

Elo rating system is used in the chess portion of chess boxing.

The use of Elo rating systems was effectively scrapped with the creation of the College Football Playoff in 2014; participants in the CFP and its associated bowl games are chosen by a selection committee.

In pool, an Elo rating-based system called Fargo Rate is used to rank players in organized amateur and professional competitions.

One of the few Elo rating-based rankings endorsed by a sport's governing body is the FIFA Women's World Rankings, based on a simplified version of the Elo rating algorithm, which FIFA uses as its official ranking system for national teams in women's football.

An Elo rating-based ranking of National Hockey League players has been developed.

Elo rating system has been used in soft biometrics, which concerns the identification of individuals using human descriptions.

Elo rating system has been used in biology for assessing male dominance hierarchies, and in automation and computer vision for fabric inspection.

Elo rating system has been noted in dating apps, such as in the matchmaking app Tinder, which uses a variant of the Elo rating system.

Elo rating system was featured prominently in The Social Network during the algorithm scene where Mark Zuckerberg released Facemash.

Behind the scenes, the movie claims, the Elo rating system is employed to rank girls by their attractiveness.