Individual Calculations July 2009
 Eckert, Doug D  Total change: -2.70  Rating chartPersonal card
 2009 US Championship St. Louis, Missouri USA 2009-05-07
 2499 2275 1.00 5 -0.18 15 -2.70 
  Gulko, Boris g2561 USA0.001-0.1615-2.40 
  Shabalov, Alexander g2569 USA0.001-0.1515-2.25 
  Christiansen, Larry g2588 USA0.001-0.1415-2.10 
  Khachiyan, Melikse g2546 USA1.0010.831512.45 
  Hughes, Tyler B 2230 USA0.001-0.5615-8.40 

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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