Individual Calculations December 2023
 Yao, John  Total change: -2.00  Rating chartPersonal card
 2023 Rooty Hill Open Rounds 5-9 Sydney AUS 2023-10-31
RcRownchangeKK*chgGame
 1328 1566 1.50 2 -0.10 20 -2.00 
  Senthil Kumar, Harendhra 1308 AUS1.0010.18203.60 
  Cyriac, Jose 1347 AUS0.501-0.2820-5.60 

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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