Individual Calculations March 2011
 Razzaq, Ali  Total change: 10.75  Rating chartPersonal card
 2011 Northern Alberta Open Edmonton, Alberta CAN 2011-02-19
RcRownchangeKK*chgGame
 2099 1921 1.00 2 0.43 25 10.75 
  Mackinnon, Keith 2217 CAN0.001-0.1525-3.75 
  Zeggelaar, Mike 1980 CAN1.0010.582514.50 

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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