Individual Calculations April 2009
 Pires, Igor Tiago Duarte  Total change: -4.35  Rating chartPersonal card
 V AEJ CHESS FIDE OPEN S Joao da Madeira POR 2008-10-04
RcRownchangeKK*chgGame
 1772 1860 4.50 7 0.24 15 3.60 
  Sa, Claudio Simao Carvalho Fari 1510 POR1.0010.11151.65 
  Aguiar, Henriqur Rui Neves 1657 POR0.501-0.2615-3.90 
  Mendes, Pedro Miguel Gomes 1635 POR1.0010.22153.30 
  Ferreira, Jorge Joao Viterbo 2153 POR0.001-0.1515-2.25 
  Batista, Sandro Manuel Almeida 1758 POR1.0010.36155.40 
  Ferreira, Ana Margarida Goncalv 1713 POR0.501-0.2015-3.00 
  Margarido, Ricardo Emanuel Torr 1977 POR0.5010.16152.40 

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)
 
 C.D. Jovens Aveiro– Sub 20 Aveiro POR 2009-02-20
RcRownchangeKK*chgGame
 1653 1860 1.00 2 -0.53 15 -7.95 
  Ribau, Nelson Manuel Salvador 1687 POR1.0010.27154.05 
  Ferreira, Susana Carolina Gonca 1619 POR0.001-0.8015-12.00 

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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