Individual Calculations September 2019
 Pereira, Joel Maia  Total change: -27.20  Rating chartPersonal card
 III Aberto STD do IFAP Macapa AP BRA 2019-08-02
RcRownchangeKK*chgGame
 1769 1677 0.50 3 -0.68 40 -27.20 
  Machado, Hualason Jose Soares 1999 BRA0.001-0.1340-5.20 
  Braz De Araujo, Daniel 1474 BRA0.501-0.2640-10.40 
  Uchoa, Iranilson Pinheiro 1834 BRA0.001-0.2940-11.60 

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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