Individual Calculations March 2012
 Ertan, Oktay  Total change: -20.85  Rating chartPersonal card
 2012 Istanbul Chess Championship Istanbul TUR 2011-12-25
RcRownchangeKK*chgGame
 1686 1987 4.50 7 -1.39 15 -20.85 
  Sahap, Abdurrahman 1685 TUR0.501-0.3515-5.25 
  Tunc, Cihan 1638 TUR0.001-0.8915-13.35 
  Bucak, Mehmet 1587  * TUR1.0010.08151.20 
  Erdem, Huseyin Varol 1587  * TUR1.0010.08151.20 
  Ozcan, Bora 1661 TUR1.0010.13151.95 
  Bapoglu, Ibrahim 1813 TUR1.0010.27154.05 
  Akpulat, Dogan 1832 TUR0.001-0.7115-10.65 
 * Rating difference of more than 400. Please read more at FIDE Handbook

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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