Individual Calculations October 2018
 Botha, Le-Ri  Total change: 3.20  Rating chartPersonal card
 2018 Tshwane Chess Etienne Lewis Trials (U16 Girls) Pretoria RSA 2018-08-31
RcRownchangeKK*chgGame
 1145 1129 2.00 4 0.08 40 3.20 
  Goncalves Dias, Amika 1131 RSA1.0010.504020.00 
  Bester, Carla 1154 RSA0.001-0.4740-18.80 
  Booysen, Tineke 1217 RSA0.5010.12404.80 
  Bouwer, Dane 1076 RSA0.501-0.0740-2.80 

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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