Individual Calculations October 2008
 De Ruiter, Danny  Total change: -10.95  Rating chartPersonal card
 Dutch Open Dieren NED 2008-07-21
RcRownchangeKK*chgGame
 2154 2017 2.00 8 -0.54 15 -8.10 
  De Groote, Ewoud 2251 NED0.001-0.2115-3.15 
  Van Lanen, Antoon 2152 NED0.001-0.3215-4.80 
  Theulings, Paul-Peter c2148 NED0.5010.18152.70 
  De Saegher, Chris 2185 NED0.5010.22153.30 
  Klein, David 2135 NED0.001-0.3415-5.10 
  Grondsma, Mark 2121 NED0.001-0.3615-5.40 
  Van Den Dikkenberg, Erik f2131 NED0.5010.16152.40 
  Obers, Frits 2112 NED0.5010.13151.95 

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)
 
 University of Twente Open Dutch Younth Chess Championship Enschede NED 2008-08-04
RcRownchangeKK*chgGame
 2062 2017 2.00 5 -0.19 15 -2.85 
  Kuling, Lody 2196 NED0.5010.23153.45 
  Kleijn, Christov 2238 NED0.001-0.2215-3.30 
  De Groote, Ewoud 2251 NED0.001-0.2115-3.15 
  Van Akkeren, Arno 1706 GER1.0010.14152.10 
  Ten Vergert, Paul 1920 NED0.501-0.1315-1.95 

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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