Individual Calculations January 2009
 De Haan, Eric  Total change: -12.60  Rating chartPersonal card
 2B - r 1-3 - Dutch Team Competition Various NED 2008-09-27
RcRownchangeKK*chgGame
 2229 2356 0.50 2 -0.84 15 -12.60 
  Van Leeuwen, Michel 2205 NED0.001-0.7015-10.50 
  Helvensteijn, Dennis 2253 NED0.501-0.1415-2.10 

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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