Live Chess Ratings - 2700chess.com
2700chess.comOct 06, 2022 · Special Thanks. We would like to extend our special thanks to Hans Arild Runde for his ground-breaking idea of calculating and regularly updating the live chess ratings of elite players, to Dr Christopher Wright for his contribution to the all-important early development of this site and thanks to Mark Crowther at TWIC for sharing PGN of games that are difficult to get from official websites.