Individual Calculations June 2023
 Fridkovsky, Lev  Total change: -7.20  Rating chartPersonal card
 League Alef Hadarim 2023 8-9 Israel ISR 2023-05-04
RcRownchangeKK*chgGame
 1983 1929 0.50 2 -0.36 20 -7.20 
  Halamish, Arnon 2050 ISR0.5010.16203.20 
  Gerber, Nick 1915 ISR0.001-0.5220-10.40 

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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