Individual Calculations April 2009
 Wozniak, Bartosz  Total change: -4.80  Rating chartPersonal card
 Turniej Noworoczny Wroclaw POL 2008-12-29
RcRownchangeKK*chgGame
 1845 1779 0.50 2 -0.32 15 -4.80 
  Duch, Robert 1875 POL0.5010.13151.95 
  Cukrowski, Filip 1815 POL0.001-0.4515-6.75 

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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