Individual Calculations September 2011
 Herrera Tafur, Alexandra  Total change: 7.50  Rating chartPersonal card
 XXII Torneo Panamericano de Ajedrez de la Juventud 2011 U-14 Femenino Cali COL 2011-07-02
RcRownchangeKK*chgGame
 1698 1462 1.50 6 0.25 30 7.50 
  Rosales, Pierina wf1782 PER0.001-0.1330-3.90 
  Paspuel, Melissa 1699 ECU0.5010.30309.00 
  Salazar Ramos, Diana Carolina 1706 PER0.001-0.2030-6.00 
  Diaz Alarcon, Maria Fernanda 1707 ECU0.001-0.2030-6.00 
  Nunez, Lucia 1638 PER1.0010.733021.90 
  Vintimilla Pena, Amarelis 1656 ECU0.001-0.2530-7.50 

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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