Individual Calculations July 2010
 West, James R  Total change: -6.45  Rating chartPersonal card
 New York May Open New York, New York USA 2010-05-29
RcRownchangeKK*chgGame
 2117 2096 1.00 3 -0.43 15 -6.45 
  Tom, George 2055 USA0.501-0.0615-0.90 
  Ostrovskiy, Aleksandr c2254 USA0.001-0.2915-4.35 
  Kats, Alena 2041 USA0.501-0.0815-1.20 

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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