Individual Calculations March 2012
 Li, Zhaozhi  Total change: 44.10  Rating chartPersonal card
 Tim Just's Winter Open/Reserve XXVIII Oak Brook. Illinois USA 2012-01-07
RcRownchangeKK*chgGame
 2078 1880 2.50 4 1.47 30 44.10 
  Cohen, Howard 1989 USA1.0010.653019.50 
  Wallach, Kenneth T 2161 USA0.001-0.1630-4.80 
  Cohen, Lawrence S 1971 USA1.0010.623018.60 
  Karagianis, Petros 2192 USA0.5010.363010.80 

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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