Individual Calculations May 2024
 Efrimzon, Oleg  Total change: -15.60  Rating chartPersonal card
 Alef Zafon 2024 5-6 Israel ISR 2024-03-28
RcRownchangeKK*chgGame
 1954 2057 0.50 2 -0.78 20 -15.60 
  Weinstein, Shaul 1951 ISR0.501-0.1420-2.80 
  Lerner, Arkady 1957 ISR0.001-0.6420-12.80 

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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