Individual Calculations September 2010
 Ribeiro, Sergio Mario  Total change: -13.50  Rating chartPersonal card
 V Open Cidade de Espinho: Memorial Leonel Pias Espinho POR 2010-06-03
RcRownchangeKK*chgGame
 1587 1784 2.00 4 -0.90 15 -13.50 
  Mendes, Rui 1892 POR0.5010.15152.25 
  Martins, Guilherme Pires 1501 POR0.001-0.8415-12.60 
  Rasteiro, Rui Manuel 1429 POR0.501-0.3915-5.85 
  Miranda, Jose Pedro 1524 POR1.0010.18152.70 

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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