Individual Calculations April 2008
 Calpo, Benjamin V  Total change: 7.50  Rating chartPersonal card
 2007 Washington Open Seatttle, Washington USA 2007-11-23
RcRownchangeKK*chgGame
 2215 2004 1.00 3 0.30 25 7.50 
  Cheng, Bindi f2307 CAN0.001-0.1425-3.50 
  Rupel, David G 2126 USA1.0010.672516.75 
  Macgregor, Michael S 2213 USA0.001-0.2325-5.75 

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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