Individual Calculations January 2009
 Humphreys, Jerry G  Total change: 9.30  Rating chartPersonal card
 4NCL part 1 Various ENG 2008-10-04
RcRownchangeKK*chgGame
 2109 2067 1.50 2 0.62 15 9.30 
  Salimbeni, George P W 2103 ENG1.0010.55158.25 
  Shepley, Julien M 2115 ENG0.5010.07151.05 

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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