Individual Calculations July 2009
 Benjamin, Joel  Total change: -8.50  Rating chartPersonal card
 2009 US Championship St. Louis, Missouri USA 2009-05-07
 2506 2583 4.50 9 -0.85 10 -8.50 
  Shankland, Samuel m2446 USA0.501-0.1810-1.80 
  Krush, Irina mwg2452 USA1.0010.32103.20 
  Friedel, Joshua E g2516 USA0.001-0.5910-5.90 
  Brooks, Michael A m2463 USA0.501-0.1610-1.60 
  Hughes, Tyler B 2233 USA1.0010.11101.10 
  Khachiyan, Melikse g2546 USA1.0010.45104.50 
  Kamsky, Gata g2720 USA0.001-0.3210-3.20 
  Akobian, Varuzhan g2613 USA0.001-0.4610-4.60 
  Shabalov, Alexander g2569 USA0.501-0.0210-0.20 

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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