Individual Calculations December 2017
 Cook, David  Total change: 17.60  Rating chartPersonal card
 2017 Norths John Purdy Memorial Open Sydney AUS 2017-09-12
RcRownchangeKK*chgGame
 1782 1623 3.00 7 0.88 20 17.60 
  Murray, Bruce D c2019 AUS0.001-0.0820-1.60 
  Wan, Dennis 1839 AUS0.001-0.2220-4.40 
  Case, Ivan 1716 AUS1.0010.632012.60 
  Zekic, Mirsad 1636 AUS1.0010.522010.40 
  Richards, Allan 1797 AUS0.001-0.2720-5.40 
  Shen, Fiona 1670 AUS1.0010.572011.40 
  Glissan, Paul 1799 AUS0.001-0.2720-5.40 

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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