Individual Calculations October 2023
 Haddad Filho, Paulo Ibrahim  Total change: -7.80  Rating chartPersonal card
 Aberto Brasil III Niteroi Chess Open 2023 Rio de Janeiro RJ BRA 2023-09-04
RcRownchangeKK*chgGame
 1876 1864 3.50 8 -0.39 20 -7.80 
  Pinero Rodriguez, Carlos Jose m2204 VEN0.001-0.1220-2.40 
  Santiago, Mauro 1473 BRA1.0010.09201.80 
  Zacarias, Rodrigo Medeiros 2121 BRA0.001-0.1820-3.60 
  Santos, Mike Sperandio 1656 BRA0.501-0.2720-5.40 
  Bonilla Viamonte, Diego Armando 1557 VEN1.0010.14202.80 
  Rangel, Daniel f2204 BRA0.001-0.1220-2.40 
  Campagnolo, Fabiola 1659 BRA1.0010.24204.80 
  Do Nascimento, Christian Almeida 2133 BRA0.001-0.1720-3.40 

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)
 

 

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