Individual Calculations January 2015
 Mendelsohn, David C.  Total change: -8.40  Rating chartPersonal card
 Chess Excellence Summer Cup 2014 Johannesburg RSA 2014-11-22
RcRownchangeKK*chgGame
 1666 1892 2.00 3 -0.21 40 -8.40 
  Roets, Marius H. 1531 RSA1.0010.10404.00 
  Oberholzer, Marni 1492  * RSA1.0010.08403.20 
  Mare, Eben 1974 RSA0.001-0.3940-15.60 
 * 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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