Individual Calculations September 2009
 Duneas, John  Total change: -11.25  Rating chartPersonal card
 Waikato Open 2009 Hamilton NZL 2009-08-07
RcRownchangeKK*chgGame
 2115 2160 1.50 4 -0.75 15 -11.25 
  Hair, Philip I 2013 NZL1.0010.30154.50 
  Fuatai, Fuatai 2037 NZL0.501-0.1715-2.55 
  Spain, Graeme 2217 NZL0.001-0.4215-6.30 
  Han, Daniel 2191 NZL0.001-0.4615-6.90 

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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