Individual Calculations September 2017
 Cao-Dao, Vivian  Total change: -10.00  Rating chartPersonal card
 2017 National Girls Tournament of Champions Norfolk, Virginia USA 2017-07-29
RcRownchangeKK*chgGame
 1885 1557 0.00 2 -0.25 40 -10.00 
  Wu, Rochelle wc1888 USA0.001-0.1240-4.80 
  Konovalenko, Sasha wf1882 USA0.001-0.1340-5.20 

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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