Individual Calculations August 2012
 Vargas, Mauricio  Total change: 3.75  Rating chartPersonal card
 Open IRT Liga de Ajedrez de Bogota Julio Bogota COL 2012-07-19
 1803 1998 1.00 1 0.25 15 3.75 
  Obando Guzman, Soren Federico 1803 COL1.0010.25153.75 

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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