Individual Calculations September 2015
 Surya, Benito  Total change: -2.00  Rating chartPersonal card
 2015 North American U20 Open Championships Kitchener CAN 2015-07-26
 1811 1706 2.50 7 -0.05 40 -2.00 
  Idnani, Taran c1963 USA0.5010.324012.80 
  Xu, Jeffrey c1847 CAN0.001-0.3140-12.40 
  Liu, Daniel 1666 CAN0.501-0.0640-2.40 
  Zhang, Henry 1593 CAN0.001-0.6540-26.00 
  Zhao, Harry 1892 CAN0.5010.24409.60 
  Idnani, Roshan R 1822 USA1.0010.664026.40 
  Zhong, Joey 1897 CAN0.001-0.2540-10.00 

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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