Individual Calculations February 2017
 Perry, Roger L  Total change: 6.80  Rating chartPersonal card
 124th New Zealand Championship Wellington NZL 2017-01-01
RcRownchangeKK*chgGame
 2043 2013 4.00 8 0.34 20 6.80 
  Croad, Nicholas f2278 NZL0.001-0.1820-3.60 
  Stracy, Don M 1663 NZL1.0010.11202.20 
  Gong, Daniel Hanwen c2090 NZL0.001-0.3920-7.80 
  Jellyman, Riley 1788 NZL1.0010.22204.40 
  Watharow, Sean 1949 AUS1.0010.41208.20 
  Morrell, Gordon 2089 CAN0.5010.10202.00 
  Ker, Anthony F m2300 NZL0.5010.34206.80 
  Lukey, Stephen G f2190 NZL0.001-0.2720-5.40 

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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