Individual Calculations September 2009
 Chevallier, Alain  Total change: 7.00  Rating chartPersonal card
 Ch Ligue IDF -2200 Paris FRA 2009-06-20
RcRownchangeKK*chgGame
 2123 2018 1.00 2 0.28 25 7.00 
  Gravier, Laurent 2055 FRA1.0010.552513.75 
  Eche, Sylvain 2191 FRA0.001-0.2725-6.75 

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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