Individual Calculations September 2015
 Sorin, Idan  Total change: 3.20  Rating chartPersonal card
 National Championship 1-8 final 2015 Kiryat Bialik Kiryat Bialik ISR 2015-07-07
RcRownchangeKK*chgGame
 1546 1515 1.00 2 0.08 40 3.20 
  Meir, Ohad 1587 ISR0.001-0.4040-16.00 
  Feldman, Paula 1504 ISR1.0010.484019.20 

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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