Individual Calculations July 2009
 Peters, Jack  Total change: -5.00  Rating chartPersonal card
 2009 Lina Grumette Memorial Day Classic Los Angeles, California USA 2009-05-23
 2220 2390 3.00 5 -0.50 10 -5.00 
  Pilnick, Carl 2126 USA1.0010.18101.80 
  Hough, Randall D 2040 USA1.0010.11101.10 
  Khachiyan, Melikset g2546 USA0.001-0.2910-2.90 
  Yurenok, Sergey 2231 USA0.501-0.2110-2.10 
  Adelberg, David 2158 USA0.501-0.2910-2.90 

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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