Individual Calculations April 2008
 Diaz Perez, Ariel  Total change: 12.60  Rating chartPersonal card
 II COPA 13 DE MARZO CIUDAD DE LA HABANA CUB 2007-04-22
RcRownchangeKK*chgGame
 2166 2117 9.50 20 0.84 15 12.60 
  Miramonte, Roberto C. 2166 CUB1.0010.57158.55 
  Figueredo, Leonel 2170 CUB0.001-0.4315-6.45 
  Ayra, Ariel 2196 CUB1.0010.61159.15 
  Ortiz Fagales, Joel 2153 CUB1.0010.55158.25 
  Lopez, Pedro 2127 CUB1.0010.51157.65 
  Martinez, Orlando 2092 CUB0.501-0.0315-0.45 
  Roman Portales, Borrero 2197 CUB0.5010.11151.65 
  Alvarez, Chan J. f2203 CUB0.001-0.3815-5.70 
  Larrua, Gonzalez Fernando 2245 CUB0.5010.17152.55 
  Lopez, Yurima wf2109 CUB0.001-0.5115-7.65 
  Miramonte, Roberto C. 2166 CUB1.0010.57158.55 
  Figueredo, Leonel 2170 CUB0.001-0.4315-6.45 
  Ayra, Ariel 2196 CUB0.001-0.3915-5.85 
  Ortiz Fagales, Joel 2153 CUB0.001-0.4515-6.75 
  Lopez, Pedro 2127 CUB1.0010.51157.65 
  Martinez, Orlando 2092 CUB0.001-0.5315-7.95 
  Roman Portales, Borrero 2197 CUB0.5010.11151.65 
  Alvarez, Chan J. f2203 CUB0.5010.12151.80 
  Larrua, Gonzalez Fernando 2245 CUB0.001-0.3315-4.95 
  Lopez, Yurima wf2109 CUB1.0010.49157.35 

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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