Individual Calculations March 2023
 Al-Haj Johnston, Sofyan  Total change: 24.60  Rating chartPersonal card
 Tournoi de L'Echiquier grenoblois hiver 2022 r5-9 GRENOBLE FRA 2023-01-04
RcRownchangeKK*chgGame
 1931 1716 2.00 3 1.23 20 24.60 
  Belhadj-Abbes, Mustapha 1876 FRA1.0010.712014.20 
  Alashtar, Kheder 2125 SYR1.0010.922018.40 
  Kastantin, Anas 1791 FRA0.001-0.4020-8.00 

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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