Individual Calculations September 2021
 Cao, Joy  Total change: -1.20  Rating chartPersonal card
 51st Annual Continental Open - Under 2200 Sturbridge, Massachusetts USA 2021-08-12
RcRownchangeKK*chgGame
 1788 1719 2.00 5 -0.03 40 -1.20 
  Lancman, Kyle B. 1842 USA0.001-0.3340-13.20 
  Chen, Derek 1846 USA0.001-0.3340-13.20 
  Seshadri, Sridhar 1575 USA0.001-0.6940-27.60 
  Bonnell, Leo W 1801 USA1.0010.614024.40 
  Carey, Michael P 1874 USA1.0010.714028.40 

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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