Individual Calculations January 2010
 Al Zarooni, Ahmed  Total change: -23.25  Rating chartPersonal card
 World Youth Chess Championship-u14 Antalya TUR 2009-11-12
RcRownchangeKK*chgGame
 1844 1798 0.50 3 -0.93 25 -23.25 
  Al-Tarbosh, Ward f2187 SYR0.001-0.0925-2.25 
  Drnovsek, Gal 1674 SLO0.001-0.6725-16.75 
  Du Toit, Stefan 1671 RSA0.501-0.1725-4.25 

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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