Individual Calculations July 2010
 Sands, David A  Total change: 0.15  Rating chartPersonal card
 Four Nations Chess League (4NCL) Various ENG 2009-10-24
RcRownchangeKK*chgGame
 2162 2252 2.50 4 0.01 15 0.15 
  Richmond, Peter A 2247 WLS0.001-0.5115-7.65 
  Goodger, Martyn 2147 ENG0.501-0.1415-2.10 
  Walton, Alan J c2147 ENG1.0010.36155.40 
  Ledger, Stephen C 2106 ENG1.0010.30154.50 

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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