Individual Calculations September 2009
 Zhang, Xiaopeng  Total change: -6.75  Rating chartPersonal card
 2009 China Men's Individual Championship Group B Zhuhai CHN 2009-08-05
RcRownchangeKK*chgGame
 2406 2085 0.00 2 -0.27 25 -6.75 
  Wu, Wenjin g2412 CHN0.001-0.1325-3.25 
  Wang, Chen 2400 CHN0.001-0.1425-3.50 

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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