Individual Calculations July 2009
 Pilnick, Carl  Total change: -15.15  Rating chartPersonal card
 2009 Lina Grumette Memorial Day Classic Los Angeles, California USA 2009-05-23
 2117 2126 0.50 3 -1.01 15 -15.15 
  Peters, Jack m2390 USA0.001-0.1815-2.70 
  Adelberg, David 2158 USA0.5010.04150.60 
  Zhang, Eric R 1803 USA0.001-0.8715-13.05 

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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