Individual Calculations July 2009
 Mercier, Gaetan  Total change: 22.50  Rating chartPersonal card
 4e Open d'Echecs d'Angers Angers FRA 2009-04-17
RcRownchangeKK*chgGame
 1718 1565 1.50 2 0.90 25 22.50 
  Drochon, Francois 1725 FRA0.5010.21255.25 
  Maruejols, Paul 1710 FRA1.0010.692517.25 

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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