Individual Calculations May 2014
 Roberts, Marcel  Total change: 23.25  Rating chartPersonal card
 South African Junior Closed 2014 (U18 Boys) Stellenbosch RSA 2014-03-31
RcRownchangeKK*chgGame
 1890 1828 4.50 7 1.55 15 23.25 
  Pretorius, Wiaan 1704 RSA1.0010.33154.95 
  Bezuidenhout, Roland c2033 RSA0.5010.26153.90 
  Crismann, Alessandro f1785 RSA1.0010.44156.60 
  De Abreu, Roberto f2026 RSA0.5010.26153.90 
  Moharir, Sandip 1722 RSA0.501-0.1415-2.10 
  Pon, Matt f2038 RSA0.5010.27154.05 
  Darling, Simeon c1922 RSA0.5010.13151.95 

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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