Individual Calculations September 2017
 Dean, Robert A  Total change: -7.60  Rating chartPersonal card
 104th British Championships Under 1900 Llandudno ENG 2017-07-31
RcRownchangeKK*chgGame
 1681 1850 2.50 4 -0.38 20 -7.60 
  Pearce, Neville R 1659 ENG1.0010.25205.00 
  O`mahony, Mike J 1699 ENG0.501-0.2020-4.00 
  Brown, Geoffrey M 1756 ENG0.001-0.6320-12.60 
  Matthews, Graham W 1610 ENG1.0010.20204.00 

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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