Individual Calculations April 2009
 Rogers, Jonathan W  Total change: 6.60  Rating chartPersonal card
 4NCL part 2 Various ENG 2008-10-04
RcRownchangeKK*chgGame
 2329 2347 1.50 2 0.44 15 6.60 
  Eames, Robert S f2329 ENG1.0010.47157.05 
  Morrison, Graham f2328 SCO0.501-0.0315-0.45 

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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