Blitz: Individual Calculations April 2013
 Middelkoop, Erik  Total change: -5.20  Rating chartPersonal card
 Open Dutch Blitzchess Championship 2013 Dordrecht NED 2013-03-02
RcRownchangeKK*chgGame
 2016 1952 9.00 22 -0.26 20 -5.20 
  Vermeulen, Wesley 2279 NED0.001-0.1320-2.60 
  Vermeulen, Wesley 2279 NED0.001-0.1320-2.60 
  Bakels, Anton 2003 NED0.001-0.4320-8.60 
  Bakels, Anton 2003 NED0.001-0.4320-8.60 
  Sanders, Catheleijne 1822 NED0.501-0.1820-3.60 
  Sanders, Catheleijne 1822 NED0.001-0.6820-13.60 
  Preuter, Carlos 2010 NED1.0010.582011.60 
  Preuter, Carlos 2010 NED0.001-0.4220-8.40 
  Jaspers Focks, Martin 1825 NED1.0010.33206.60 
  Jaspers Focks, Martin 1825 NED1.0010.33206.60 
  Van Der Zee, Cees 1992 NED1.0010.562011.20 
  Van Der Zee, Cees 1992 NED0.5010.06201.20 
  Daamen, Roland 2012 NED0.001-0.4220-8.40 
  Daamen, Roland 2012 NED0.5010.08201.60 
  Schrik, Rachid 2113 NED0.001-0.2920-5.80 
  Schrik, Rachid 2113 NED1.0010.712014.20 
  Pijpers, Peter 2103 NED0.001-0.3020-6.00 
  Pijpers, Peter 2103 NED0.001-0.3020-6.00 
  Winkels, Marcel 2025 NED0.001-0.4020-8.00 
  Winkels, Marcel 2025 NED0.5010.10202.00 
  Hajenius, Willem 1987 BEL1.0010.552011.00 
  Hajenius, Willem 1987 BEL1.0010.552011.00 

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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