Individual Calculations September 2009
 Heemskerk, Wim  Total change: 26.10  Rating chartPersonal card
 Intomart GfK Open 2009 Hilversum NED 2009-06-28
RcRownchangeKK*chgGame
 2291 2202 4.50 8 1.28 15 19.20 
  Fridman, Daniel g2552 GER0.001-0.1115-1.65 
  Wismeijer, Jeroen 2122 NED1.0010.39155.85 
  Goudriaan, Etienne 2104 NED0.501-0.1315-1.95 
  Beukema, Stefan 2009 NED1.0010.25153.75 
  Pruijssers, Roeland m2442 NED1.0010.801512.00 
  Pavlovic, Milos g2511 SRB0.001-0.1415-2.10 
  Bitalzadeh, Ali m2417 NED0.001-0.2315-3.45 
  In`t Veld, Daan 2168 NED1.0010.45156.75 

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)
 
 3e Leiden Chess Tournament Leiden NED 2009-07-10
RcRownchangeKK*chgGame
 2156 2210 5.00 8 0.46 15 6.90 
  Burggraaf, Jan-Theodoor 2018 NED1.0010.25153.75 
  Adhiban, B. m2481 IND0.5010.33154.95 
  Van Splunter, Niels 2017 NED0.501-0.2515-3.75 
  Kirana, Marco 1840 NED0.501-0.4015-6.00 
  Sparreboom, Wil 1977 NED1.0010.21153.15 
  Luch, Michal m2415 POL0.5010.26153.90 
  Van Overdam, Jan 1964 NED1.0010.19152.85 
  Pavlovic, Milos g2535 SRB0.001-0.1315-1.95 

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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