Individual Calculations January 2013
 Reyes Betancourt, Ahmed  Total change: 12.75  Rating chartPersonal card
 Tras las Huellas del Che La Habana CUB 2012-12-03
RcRownchangeKK*chgGame
 2017 2144 3.50 4 0.85 15 12.75 
  Bueno Gauna, Christian Alejandro 2001 CUB1.0010.31154.65 
  Leon Valdes, Jony Wilson 2204 CUB1.0010.58158.70 
  Pavon Salazar, Yasiel 1911 CUB1.0010.21153.15 
  Granda Rodriguez, Jose Manuel 1953 CUB0.501-0.2515-3.75 

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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