Individual Calculations September 2012
 Mendelsohn, David C  Total change: 24.60  Rating chartPersonal card
 Gauteng North Closed 2012 Pretoria RSA 2012-08-08
RcRownchangeKK*chgGame
 1989 1950 3.50 6 0.82 30 24.60 
  Ponelis, Albert A 1933 RSA0.501-0.0230-0.60 
  Meintjes, Jacques C 2016 RSA1.0010.593017.70 
  Wilken, Justin 2003 RSA0.001-0.4330-12.90 
  Nelson, Jaco 2073 RSA1.0010.673020.10 
  Hoek, Cornelis 1816 RSA1.0010.32309.60 
  Goosen, Anton c2093 RSA0.001-0.3130-9.30 

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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