Individual Calculations July 2023
 Witkowski, Gwendal  Total change: -0.80  Rating chartPersonal card
 Championnat interne La Dame Noire 2022 r12 MONTIGNY LE BRETONNEUX FRA 2023-06-02
RcRownchangeKK*chgGame
 1442 1454 0.50 1 -0.02 40 -0.80 
  Longbien, Dominique 1442 FRA0.501-0.0240-0.80 

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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