Individual Calculations May 2015
 Zhang, Zheming  Total change: 32.40  Rating chartPersonal card
 Edinburgh Congress Premier 2015 Edinburgh SCO 2015-04-17
RcRownchangeKK*chgGame
 1991 1712 1.50 4 0.81 40 32.40 
  Durno, Joy wf1886 SCO0.001-0.2740-10.80 
  Mare, Eben 1979 RSA0.5010.324012.80 
  Kee, Steve 2050 ENG1.0010.884035.20 
  Borwell, Alan P 2047 SCO0.001-0.1240-4.80 

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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