Individual Calculations May 2010
 Petlak, Josef  Total change: -7.50  Rating chartPersonal card
 Krajsky prebor JMSS various CZE 2009-10-11
RcRownchangeKK*chgGame
 2025 2027 2.50 6 -0.50 15 -7.50 
  Marek, Jiri 2057 CZE0.5010.04150.60 
  Gubas, Jan 2096 CZE0.001-0.4015-6.00 
  Fic, Zbynek 1894 CZE1.0010.32154.80 
  Klenner, Richard 2012 CZE0.501-0.0215-0.30 
  Kalendovsky, Jan 2082 CZE0.5010.08151.20 
  Loubal, Pavel 2011 CZE0.001-0.5215-7.80 

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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