Rapid: Individual Calculations February 2015
 Sierra, Edwin Andres  Total change: 2.40  Rating chartPersonal card
 XXV Torneo IRT Activo Liga ajedrez de Boyaca- Ferias y Fiestas Duitama 2015 Duitama COL 2015-01-10
 2017 2110 5.00 8 0.12 20 2.40 
  Fraile Vela, Maria Isabel 1716 COL1.0010.08201.60 
  Arias, Daniel 2053 COL1.0010.42208.40 
  Otalora, Carlos Eduardo 2155 COL0.5010.06201.20 
  Orozco, Lina Yomayra wm2170 COL1.0010.582011.60 
  Cifuentes, John Jairo c2263 COL0.001-0.3020-6.00 
  Corredor Castellanos, Camilo f1976 COL0.001-0.6820-13.60 
  Romero Mora, Elver 1874 COL1.0010.20204.00 
  Camejo, Mauricio 1930 COL0.501-0.2420-4.80 

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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