Individual Calculations April 2008
 Okechukwu, Ane Iwu  Total change: 27.90  Rating chartPersonal card
 34th Annual Eastern Open Washington DC USA 2007-12-27
RcRownchangeKK*chgGame
 2170 2137 5.50 8 1.86 15 27.90 
  Shibut, Macon A f2306 USA1.0010.721510.80 
  Mabe, Chris J 2252 USA0.5010.16152.40 
  Boekhoff, Andrew f2325 USA0.001-0.2615-3.90 
  Filipovich, David 2217 CAN0.001-0.3915-5.85 
  Dai, Yang 1959 USA1.0010.27154.05 
  Yagiz, Bora 1938 USA1.0010.24153.60 
  Treger, Yefim 2196 USA1.0010.58158.70 
  Markzon, Gregory f2168 USA1.0010.54158.10 

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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