Individual Calculations July 2008
 Wieczorek, Bruno  Total change: -8.50  Rating chartPersonal card
 Lower Silesian Chess Leagues Dolny Slask POL 2007-10-14
RcRownchangeKK*chgGame
 1746 1465 0.00 2 -0.34 25 -8.50 
  Janicki, Jacek 1815 POL0.001-0.1125-2.75 
  Kubica, Michal 1677 POL0.001-0.2325-5.75 

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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