Individual Calculations February 2013
 Cohen, Ed  Total change: -0.60  Rating chartPersonal card
 2013 Century West Open Los Angeles, California USA 2013-01-11
 2036 2052 1.00 2 -0.04 15 -0.60 
  Wasiolek, Rory E 2078 USA0.001-0.4615-6.90 
  Mousseri, Daniel Y 1993 USA1.0010.42156.30 

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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