Individual Calculations July 2009
 Van Der Zalm, Marnix  Total change: -2.25  Rating chartPersonal card
 3F - r 6-9 - Dutch Team Competition Various NED 2008-09-27
RcRownchangeKK*chgGame
 2035 2073 1.50 3 -0.15 15 -2.25 
  De Wilde, Rik 1978 NED1.0010.37155.55 
  De Wit, Dick f2203 NED0.001-0.3215-4.80 
  Kleinjan, Pim 1924 NED0.501-0.2015-3.00 

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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