Individual Calculations August 2015
 Zuma, Mbusiswa  Total change: -8.00  Rating chartPersonal card
 South African Open Chess Championships 2015 Cape Town RSA 2015-07-03
RcRownchangeKK*chgGame
 1841 1759 1.00 3 -0.20 40 -8.00 
  Longano, Michael Nicholas 2046 RSA0.001-0.1640-6.40 
  Wium, Daniel 1923 RSA0.001-0.2840-11.20 
  Goldberg, Shmuel 1555 RSA1.0010.24409.60 

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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