Individual Calculations July 2009
 Tuul, Tarmo  Total change: -8.75  Rating chartPersonal card
 Estonian Club Chess Championship Tallinn EST 2009-05-08
RcRownchangeKK*chgGame
 2072 2011 0.50 2 -0.35 25 -8.75 
  Rauk, Tonu 2230 EST0.5010.28257.00 
  Adermann, Ivo 1913 EST0.001-0.6325-15.75 

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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