Individual Calculations March 2015
 Purdon, Colin  Total change: -10.60  Rating chartPersonal card
 4NCL 2014-15 Rounds 5-6 Various ENG 2015-02-14
RcRownchangeKK*chgGame
 2057 2068 0.50 2 -0.53 20 -10.60 
  De Coverly, Roger D 1998 ENG0.001-0.6020-12.00 
  Burnett, Jim 2116 ENG0.5010.07201.40 

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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