Individual Calculations February 2014
 Cheng, Kun  Total change: 3.30  Rating chartPersonal card
 23rd Annual North American Open - U2300 Section Las Vegas, Nevada USA 2013-12-26
 2155 2066 2.50 6 0.22 15 3.30 
  Osmonbekov, Talaibek D 2255 USA0.5010.25153.75 
  Chen, Shijie 2133 USA0.001-0.4115-6.15 
  Kudryavtsev, Vadim 2139 RUS1.0010.60159.00 
  Korba, Nicky 2023 USA0.001-0.5615-8.40 
  Salman, Nachum f2167 USA0.5010.14152.10 
  Lopez, Armando Enrique 2215 COL0.5010.20153.00 

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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