Individual Calculations September 2009
 Boim, Inon  Total change: -11.80  Rating chartPersonal card
 ISR 2nd League South 2009 Various ISR 2009-01-08
RcRownchangeKK*chgGame
 2286 2353 0.00 2 -1.18 10 -11.80 
  Lederer, Yoav 2300 ISR0.001-0.5710-5.70 
  Gutkin, Boris 2271 ISR0.001-0.6110-6.10 

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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