Individual Calculations July 2013
 Buitrago, Juan Carlos  Total change: -37.80  Rating chartPersonal card
 IRT Open de Ajedrez "Dosquebradas Empresa de Todos" Dosquebradas COL 2013-06-19
 2058 2162 0.00 4 -2.52 15 -37.80 
  Torres, Juan Camilo f2342 COL0.001-0.2615-3.90 
  Vargas, Eduar Misael 1954 COL0.001-0.7715-11.55 
  Lopez, Jorge 2031 COL0.001-0.6815-10.20 
  Marin, Diego Alejandro 1906 COL0.001-0.8115-12.15 

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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