Individual Calculations January 2009
 Stork, Ornett  Total change: -7.05  Rating chartPersonal card
 1B - r 1-3 - Dutch Team Competition Various NED 2008-09-27
RcRownchangeKK*chgGame
 2271 2136 0.50 3 -0.47 15 -7.05 
  Schuurman, Petra f2324 NED0.5010.24153.60 
  Van Kerkhof, David 2234 NED0.001-0.3715-5.55 
  Hallebeek, Fred f2256 NED0.001-0.3415-5.10 

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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