Rapid: Individual Calculations December 2018
 Abahchouch, Youness  Total change: 18.60  Rating chartPersonal card
 tournoi national eljadida Eljadida MAR 2018-11-03
RcRownchangeKK*chgGame
 1866 1896 2.00 2 0.93 20 18.60 
  Skalli, Taoufik 1717 MAR1.0010.27205.40 
  Echajari , Khalid 2015 MAR1.0010.662013.20 

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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