Individual Calculations September 2009
 Hirales, Juan N  Total change: -2.55  Rating chartPersonal card
 14th Annual Pacific Coast Open Agoura Hills, California USA 2009-07-16
 2231 2091 1.50 5 -0.17 15 -2.55 
  Popova, Elena 2031 RUS0.501-0.0815-1.20 
  Anderson, Renard W f2207 USA0.5010.16152.40 
  Matikozyan, Andran m2478 ARM0.001-0.0915-1.35 
  Kudryavtsev, Vadim 2147 RUS0.001-0.4215-6.30 
  Reynolds, Robert I f2290 USA0.5010.26153.90 

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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