Individual Calculations February 2015
 Van Der Zwan, Pieter  Total change: -57.20  Rating chartPersonal card
 Tata Steel Chess Tournament 2015 - T4B Wijk aan Zee NED 2015-01-16
RcRownchangeKK*chgGame
 1865 1859 2.00 7 -1.43 40 -57.20 
  Bouma, Dick 1872 NED0.001-0.4840-19.20 
  Liebert, Erwin 1659 EST0.001-0.7640-30.40 
  Eijgelaar, Jeroen 1920 NED0.5010.08403.20 
  Thomson, William 1918 NED0.5010.08403.20 
  Kunst, Andre 1998 NED0.001-0.3140-12.40 
  De Kleijnen, Henk 1886 NED1.0010.544021.60 
  Van De Gevel, Ed 1803 NED0.001-0.5840-23.20 

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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