Individual Calculations May 2023
 Naude, Nia  Total change: -51.20  Rating chartPersonal card
 2023 South African Junior Closed (U18 Girls) Johannesburg RSA 2023-03-31
RcRownchangeKK*chgGame
 1248 1107 0.00 4 -1.28 40 -51.20 
  Wang, Pei-Shan 1385 RSA0.001-0.1740-6.80 
  Tlhage, Molemo 1211 RSA0.001-0.3640-14.40 
  Claassen, Gabriella 1161 RSA0.001-0.4240-16.80 
  Nel, Hayley 1235 RSA0.001-0.3340-13.20 

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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