Individual Calculations April 2009
 Petrak, Robert  Total change: -6.15  Rating chartPersonal card
 Open Praha 2009 - tournament A Prague CZE 2009-01-09
RcRownchangeKK*chgGame
 2054 2003 3.00 8 -0.41 15 -6.15 
  Kaufman, Raymond m2308 USA0.001-0.1415-2.10 
  Soucek, Milan 2159 CZE0.001-0.2915-4.35 
  Umanec, Filip 2165 CZE0.001-0.2915-4.35 
  Plicka, Petr 1825 CZE1.0010.27154.05 
  Klecker, Tadeas 2134 CZE0.001-0.3215-4.80 
  Vanoucek, Pavel 1660 CZE1.0010.12151.80 
  Fairbairn, Stephen 2068 CAN1.0010.59158.85 
  Hantak, Adam 2112 GER0.001-0.3515-5.25 

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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