Individual Calculations January 2012
 De Barros E Silva, Byron Veras  Total change: -1.20  Rating chartPersonal card
 II Campeonato de Veteranos do Nordeste 2011 Joao Pessoa/PB BRA 2011-11-04
 1967 1867 1.50 4 -0.04 30 -1.20 
  Souza, Marcos Valerio A 2005 BRA0.001-0.3130-9.30 
  Da Silva Filho, Ibernon Luiz 1722 BRA1.0010.31309.30 
  Asfora, Marco Antonio H f2219 BRA0.001-0.1130-3.30 
  Azevedo, Eduardo Jose E De 1920 BRA0.5010.07302.10 

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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