Individual Calculations July 2009
 Casella, Michael  Total change: -0.15  Rating chartPersonal card
 2009 Lina Grumette Memorial Day Classic Los Angeles, California USA 2009-05-23
 2137 2284 2.00 3 -0.01 15 -0.15 
  Zhang, Eric R 1934 USA0.501-0.3915-5.85 
  Garcia, Carlos 2145 CUB1.0010.31154.65 
  Manukyan, Garush 2333 ARM0.5010.07151.05 

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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