Not just chess but in some zero-sum games (a principle in game theory where a player's winnings is directly balanced out by the losses of their opponent) Elo rating is considered as the gold standard.

The International Chess Federation has introduced a big change to its ELO system, sparking claims from GMs that their ratings were “stolen.” ...

The ELO system, which most chess federations use today, ranks players by the results of their games. Although simple and efficient, it overlooks relevant criteria such as the quality of the moves ...

NEW DELHI: Viswanathan Anand had recently made known his dissatisfaction with the ELO Rating system, claiming the system does not reflect the true strength of a chess player. He has now gone a step ...

FIDE’s removal of the 400-point rule has divided chess players, with grandmasters warning of unfair rating risks ...

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If you have played a game of online chess, or queued up in ranked esports games, chances are you’ve already encountered the Elo rating system. Originally developed in the 1960s by physics professor ...