Individual Calculations May 2010
 Ruan, Jack  Total change: 15.15  Rating chartPersonal card
 Sydney International Open Sydney AUS 2010-04-07
RcRownchangeKK*chgGame
 2034 1896 4.00 9 1.01 15 15.15 
  Steadman, Michael 2264 NZL0.001-0.1015-1.50 
  Milligan, Helen wf2016 NZL0.5010.16152.40 
  Chowdhury, Sohel 2190 BAN0.001-0.1515-2.25 
  Lee, T H Bryan 1930 HKG1.0010.55158.25 
  Grigg, Sam 1979 AUS0.001-0.3915-5.85 
  Christensen, Joshua 1836 AUS0.501-0.0815-1.20 
  Cheung, Benjamin 1946 AUS1.0010.57158.55 
  Ilic, Ilija 2009 AUS1.0010.65159.75 
  Monir, Arman 2139 BAN0.001-0.2015-3.00 

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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