Individual Calculations August 2015
 Bishoen, Bob  Total change: -40.40  Rating chartPersonal card
 9e Leiden Chess Tournament, Group A Leiden NED 2015-07-17
RcRownchangeKK*chgGame
 2079 1968 1.50 7 -1.01 40 -40.40 
  Kolodkin, Daniil 2208 NED0.001-0.2040-8.00 
  Bebchuk, Leonid 2072 ISR1.0010.644025.60 
  Johansson, Gunnar 2223 SWE0.001-0.1940-7.60 
  Ratsma, Rosa 2088 NED0.001-0.3440-13.60 
  Erwich, Frans 1974 NED0.5010.01400.40 
  Brantjes, Yme 1937 NED0.001-0.5440-21.60 
  Van Der Scheer, Henk 2049 NED0.001-0.3940-15.60 

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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