Individual Calculations April 2023
 Sorin, Itay  Total change: 5.20  Rating chartPersonal card
 League Alef Zafon 2023 5-6 Israel ISR 2023-03-09
RcRownchangeKK*chgGame
 2037 1943 1.00 2 0.26 20 5.20 
  Leibovich, Semion 2067 ISR0.5010.17203.40 
  Dayan, Prosper 2007 ISR0.5010.09201.80 

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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