Individual Calculations May 2012
 Perez Reisler, Jose  Total change: -4.50  Rating chartPersonal card
 Torneo de Guaynabo 2012 Abierta Guaynabo PUR 2012-02-24
 2180 1879 0.00 2 -0.30 15 -4.50 
  Berrios Echevarria, Gabriel f2243 PUR0.001-0.1015-1.50 
  Montanez Nazario, Roberto 2117 PUR0.001-0.2015-3.00 

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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