Individual Calculations October 2008
 Grondsma, Mark  Total change: -3.45  Rating chartPersonal card
 Dutch Open Dieren NED 2008-07-21
RcRownchangeKK*chgGame
 2146 2121 4.00 9 -0.23 15 -3.45 
  Rothuis, Vincent 2357 NED0.5010.30154.50 
  Kuipers, Stefan f2321 NED0.001-0.2415-3.60 
  Van Der Knijff, Reint 1998 NED0.501-0.1715-2.55 
  Van Den Berg, Harmen 2194 NED0.001-0.4015-6.00 
  Van Vliet, Dennis 2116 BEL1.0010.49157.35 
  Vogel, Jaap f2253 NED0.001-0.3215-4.80 
  De Ruiter, Danny 2017 NED1.0010.36155.40 
  Haast, Mark 2089 NED0.001-0.5415-8.10 
  Munnik, Talitha 1966 NED1.0010.29154.35 

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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