Individual Calculations April 2009
 Le Perf, Henri  Total change: -12.25  Rating chartPersonal card
 13e open de Guingamp Pabu FRA 2009-02-14
RcRownchangeKK*chgGame
 1843 1733 1.00 4 -0.49 25 -12.25 
  Fomichenko, Eduard m2083 RUS0.001-0.1125-2.75 
  Le Moy, Patrick 1788 FRA0.001-0.4225-10.50 
  Primault, Loic 1551 FRA1.0010.26256.50 
  Grundman, Norbert 1951 FRA0.001-0.2225-5.50 

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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