Individual Calculations September 2009
 Jan, Joris Groenewold  Total change: 27.60  Rating chartPersonal card
 Atlantistoernooi 2009 Promotiegroep Groningen NED 2009-07-03
RcRownchangeKK*chgGame
 2146 2117 6.00 9 1.84 15 27.60 
  Bert, Van Der Marel 2226 NED1.0010.65159.75 
  Jan, Balje 2202 NED0.5010.12151.80 
  Johan, Klinkhammer 2046 NED0.501-0.1015-1.50 
  Nick, Bijlsma 1982 NED1.0010.32154.80 
  Erik-Jan, Hummel 2236 NED1.0010.66159.90 
  Erik, Hoeksema m2309 NED0.001-0.2515-3.75 
  Milan, Mostertman 2119 NED0.5010.00150.00 
  Manfred, Kroencke 2121 GER0.5010.01150.15 
  Geon, Knol 2070 NED1.0010.43156.45 

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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