Individual Calculations April 2009
 Zapata, Olga Maria  Total change: 1.75  Rating chartPersonal card
 Torneo departamental Abierto de apertura ANT Medellin COL 2009-01-26
RcRownchangeKK*chgGame
 2071 1761 0.50 3 0.07 25 1.75 
  Osorio, Cristhian Camilo 2111 COL0.001-0.1125-2.75 
  Cespedes, Cesar Ivan 2103 COL0.001-0.1225-3.00 
  Loaiza, Yurani 2000 COL0.5010.30257.50 

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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