Individual Calculations September 2013
 Qian, Owen  Total change: 5.40  Rating chartPersonal card
 2013 NAYCC U16 Toronto CAN 2013-08-14
RcRownchangeKK*chgGame
 2028 1729 1.00 5 0.18 30 5.40 
  Velikanov, Alexander 2129  * USA0.001-0.0830-2.40 
  Ding, Andrew 2080 USA0.001-0.1130-3.30 
  Song, Guannan 1907 CAN0.5010.23306.90 
  Sun, Mike 1894 CAN0.5010.22306.60 
  Xu, Grant 2129  * USA0.001-0.0830-2.40 
 * Rating difference of more than 400. Please read more at FIDE Handbook

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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