Individual Calculations September 2015
 He, Samuel Fei  Total change: 0.00  Rating chartPersonal card
 2015 North American U20 Open Championships Kitchener CAN 2015-07-26
 2205 2083 2.50 7 0.00 40 0.00 
  Song, Edward f2290 USA0.5010.274010.80 
  Preotu, Razvan m2452 CAN0.001-0.1040-4.00 
  Zotkin, Daniel 1947 CAN1.0010.324012.80 
  Zhang, Yuanchen f2295 CAN0.5010.274010.80 
  Wu, Christopher 2317 USA0.001-0.2140-8.40 
  Lin, Tony (juntao) 2098 CAN0.001-0.4840-19.20 
  Nasir, Zehn 2035 CAN0.501-0.0740-2.80 

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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