Individual Calculations April 2014
 Roberson, Peter T  Total change: 8.70  Rating chartPersonal card
 4NCL 2013-14 Rounds 7-8 Various ENG 2014-03-22
RcRownchangeKK*chgGame
 2416 2386 1.50 2 0.58 15 8.70 
  Ziska, Helgi D m2484 FAI0.5010.13151.95 
  Sowray, Peter J f2347 ENG1.0010.45156.75 

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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