Individual Calculations April 2009
 Sahl, Sheila  Total change: -2.25  Rating chartPersonal card
 4NCL part 2 Various ENG 2008-10-04
RcRownchangeKK*chgGame
 2164 2219 1.00 2 -0.15 15 -2.25 
  Anderton, David W c2239 ENG0.5010.03150.45 
  Collier, David O 2089 ENG0.501-0.1815-2.70 

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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