Individual Calculations April 2009
 Abdou Issaka, Boubacar  Total change: 2.00  Rating chartPersonal card
 Championnat du Rhone 2008-2009 - Open - 2 Lyon FRA 2008-12-01
RcRownchangeKK*chgGame
 1787 1772 2.00 4 0.08 25 2.00 
  Colas, Yves 1767 FRA1.0010.492512.25 
  Dridi, Abdessalem 1791 FRA0.001-0.4725-11.75 
  Meunier, Clement 1836 FRA0.001-0.4125-10.25 
  Nguyen-Dinh, Dominique 1752 FRA1.0010.472511.75 

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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