Individual Calculations July 2009
 Hewitt, Sean D  Total change: -4.25  Rating chartPersonal card
 4NCL part 3 Various ENG 2008-10-04
RcRownchangeKK*chgGame
 2043 1955 2.50 7 -0.17 25 -4.25 
  Dilleigh, Stephen P 2148 ENG0.001-0.2525-6.25 
  Evans, Craig 2037 WLS0.001-0.3925-9.75 
  Armstrong, William G 1964 ENG0.5010.01250.25 
  Djabri, Kathy 2035 WLS0.001-0.3925-9.75 
  Truman, Richard G 2035 ENG0.5010.11252.75 
  Lang, Heather L E 2063 SCO0.5010.15253.75 
  Jeffries, Majid 2018 ENG1.0010.592514.75 

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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