Individual Calculations September 2021
 Chu, Xiaoman  Total change: 3.60  Rating chartPersonal card
 51st Annual Continental Open - Under 2000 Sturbridge, Massachusetts USA 2021-08-12
RcRownchangeKK*chgGame
 1814 1748 0.50 1 0.09 40 3.60 
  Levcovitz, Ivan 1814 USA0.5010.09403.60 

Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change)
 

 

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