Individual Calculations April 2009
 Tippleston, Charles E  Total change: -3.45  Rating chartPersonal card
 4NCL part 2 Various ENG 2008-10-04
RcRownchangeKK*chgGame
 2278 2177 0.50 2 -0.23 15 -3.45 
  Povah, Nigel E m2311 ENG0.001-0.3215-4.80 
  Mason, Donald J 2245 ENG0.5010.09151.35 

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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