Individual Calculations August 2023
 Demarche, Laurent  Total change: -10.80  Rating chartPersonal card
 Championnat de Paris IdF 2023 Open A PARIS FRA 2023-07-11
RcRownchangeKK*chgGame
 1925 1813 0.50 3 -0.54 20 -10.80 
  Rouillon, Robin 1959 FRA0.001-0.3020-6.00 
  Duquesne, Julien 1928 FRA0.5010.16203.20 
  Le Roy, Tristan 1888 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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