Individual Calculations March 2015
 Grobbelaar, Jacqui  Total change: 0.00  Rating chartPersonal card
 Piet Robbertse Open Chess Tournament 2015 Pretoria RSA 2015-01-29
RcRownchangeKK*chgGame
 1855 1509 0.50 4 0.00 20 0.00 
  Nelson, Jaco 1909  * RSA0.001-0.0820-1.60 
  Nene, Themba 1909  * RSA0.001-0.0820-1.60 
  Sadie, Johan Jacobus Hendrik 1692 RSA0.5010.24204.80 
  Van Der Westhuizen, Willem 1909  * RSA0.001-0.0820-1.60 
 * 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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