Individual Calculations July 2009
 Ibragimov, Ildar  Total change: -2.90  Rating chartPersonal card
 2009 US Championship St. Louis, Missouri USA 2009-05-07
 2515 2586 5.00 9 -0.29 10 -2.90 
  Kamsky, Gata g2720 USA0.001-0.3210-3.20 
  Zatonskih, Anna m2461 USA0.501-0.1710-1.70 
  Christiansen, Larry g2588 USA0.5010.00100.00 
  Robson, Ray m2465 USA0.001-0.6610-6.60 
  Gulko, Boris g2561 USA0.501-0.0310-0.30 
  Hughes, Tyler B 2236 USA1.0010.11101.10 
  Khachiyan, Melikse g2546 USA1.0010.44104.40 
  Kaidanov, Gregory g2595 USA0.5010.01100.10 
  Brooks, Michael A m2463 USA1.0010.33103.30 

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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