Individual Calculations September 2022
 De Villiers, Jean  Total change: -46.80  Rating chartPersonal card
 2022 Rooty Hill Club Championship Div B Rounds 6-8 plus postponed games Sydney AUS 2022-08-09
RcRownchangeKK*chgGame
 1348 1389 0.50 3 -1.17 40 -46.80 
  Prithvi, Parthiv 1376 AUS0.001-0.5240-20.80 
  Thuaux, Alan 1361 AUS0.001-0.5440-21.60 
  Joseph, Albert 1306 AUS0.501-0.1140-4.40 

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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