Individual Calculations January 2023
 Lafkidis, Apostolos  Total change: 9.20  Rating chartPersonal card
 35th open PS Peristeriou Peristeri GRE 2022-10-22
RcRownchangeKK*chgGame
 1894 1703 1.50 4 0.23 40 9.20 
  Gkikas, Hristos 2067 GRE0.5010.404016.00 
  Tourkolias, Dimitrios 1474 GRE1.0010.21408.40 
  Ergazakis, Ioannis f2221 GRE0.001-0.0340-1.20 
  Vassis, Michail 1815 GRE0.001-0.3540-14.00 

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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