Individual Calculations April 2008
 Van Wonderen, Piet  Total change: -0.60  Rating chartPersonal card
 Corus Chess 2008 - Tienkamp 3G Wijk aan Zee NED 2008-01-18
RcRownchangeKK*chgGame
 1970 1976 4.50 9 -0.04 15 -0.60 
  Gosman, Theo 2102 NED1.0010.671510.05 
  Veerman, Jan 1949 NED0.001-0.5415-8.10 
  Bolster, Richard 2002 NED0.5010.04150.60 
  Roggeveen, Wouter 2002 NED1.0010.54158.10 
  Sielicki, Tomasz 1960 POL0.001-0.5215-7.80 
  Boekelman, Jan 1977 NED0.001-0.5015-7.50 
  Ernst, Heinz 2016 SUI0.5010.06150.90 
  Nagel, Jan 1954 NED1.0010.47157.05 
  Boot, Henk 1770 NED0.501-0.2615-3.90 

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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