Individual Calculations May 2011
 Ribeiro, Sergio Mario Da Silva  Total change: 2.85  Rating chartPersonal card
 CNE 2 divisao - serie A several POR 2010-12-11
RcRownchangeKK*chgGame
 1712 1781 2.50 4 0.19 15 2.85 
  Duarte, Afonso 1466 POR1.0010.14152.10 
  Costa, Vitor Manuel 1700 POR0.501-0.1115-1.65 
  Oliveira, Maria Ines 1760 POR0.001-0.5315-7.95 
  Moreira, Jose Americo 1922 POR1.0010.691510.35 

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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