Individual Calculations September 2009
 Popova, Elena  Total change: 17.70  Rating chartPersonal card
 14th Annual Pacific Coast Open Agoura Hills, California USA 2009-07-16
 2263 2031 2.50 6 1.18 15 17.70 
  Aigner, Michael 2240 USA1.0010.771511.55 
  Hirales, Juan N 2091 MEX0.5010.08151.20 
  Sevillano, Enrico m2431  * USA0.001-0.0815-1.20 
  Porter, Ryan W f2279 USA0.001-0.1915-2.85 
  Reynolds, Robert I f2290 USA0.5010.32154.80 
  Yurenok, Sergey 2248 USA0.5010.28154.20 
 * Rating difference of more than 400. Please read more at FIDE Handbook

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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