Individual Calculations September 2020
 Kovarsky, Avraham  Total change: -16.00  Rating chartPersonal card
 Liga Alef Tzafon Shabat 2020 Round 6 - Postponed matches Various ISR 2020-08-13
RcRownchangeKK*chgGame
 1957 2052 0.00 1 -0.63 20 -12.60 
  Noy, Shalom 1957 ISR0.001-0.6320-12.60 

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)
 
 Liga Alef Tzafon Shabat 2020 Round 7 Various ISR 2020-08-13
RcRownchangeKK*chgGame
 1929 2052 0.50 1 -0.17 20 -3.40 
  Zalkind, Valery 1929 ISR0.501-0.1720-3.40 

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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