Individual Calculations January 2009
 Zachi, Felipe Parelho  Total change: 2.25  Rating chartPersonal card
 3ยช Etapa Circuito IRT LXSBC 2008 Sao Bernardo do Campo/SP BRA 2008-09-27
RcRownchangeKK*chgGame
 1878 1627 0.50 2 0.09 25 2.25 
  Saito, Vinicius Ikezu 1977 BRA0.001-0.1125-2.75 
  Boas, Crisolon Terto Vilas 1778 BRA0.5010.20255.00 

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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