Individual Calculations March 2011
 Wright, William B  Total change: 12.60  Rating chartPersonal card
 34th Cardinal Open Columbus, Ohio USA 2011-01-28
RcRownchangeKK*chgGame
 2099 2140 2.50 3 0.84 15 12.60 
  Friedman, David M 1945 USA1.0010.25153.75 
  Velez, Ryan J A 2074 USA1.0010.41156.15 
  Lein, Anatoly g2277 USA0.5010.18152.70 

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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