Individual Calculations April 2021
 Kopaloff, Liam  Total change: -36.40  Rating chartPersonal card
 Israel youth league playoffs stage 1 Various ISR 2020-12-13
RcRownchangeKK*chgGame
 1700 1696 0.50 1 0.01 40 0.40 
  Gefen, Itamar 1700 ISR0.5010.01400.40 

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)
 
 Liga Artzit Lenoar Merkaz yom chol 2021 Group A Rounds 2-3 Varilus ISR 2021-03-13
RcRownchangeKK*chgGame
 1307 1699 0.00 1 -0.92 40 -36.80 
  Laor, Jason Ethan 1307 ISR0.001-0.9240-36.80 

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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