Individual Calculations September 2009
 Joffe, Roza  Total change: 0.75  Rating chartPersonal card
 Maccabiah 2009 Intl Open Natanya ISR 2009-07-12
RcRownchangeKK*chgGame
 2070 1993 2.00 5 0.03 25 0.75 
  Marcovici, Adrian 2118 ISR0.001-0.3325-8.25 
  Zror, Oren 2010 ISR1.0010.522513.00 
  Afgin, David 2112 ISR0.5010.16254.00 
  Kolos, Mendel 2085 ISR0.5010.13253.25 
  Belokopyt, Boris 2026 RUS0.001-0.4525-11.25 

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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