Individual Calculations May 2023
 De Yaak, Peter  Total change: 7.80  Rating chartPersonal card
 2023 Perth Club Championship Rounds 1-3 Perth AUS 2023-04-12
RcRownchangeKK*chgGame
 1578 1802 2.50 3 0.39 20 7.80 
  Kerr, Carter 1402  * AUS1.0010.08201.60 
  Wu, Kobe 1326 AUS1.0010.05201.00 
  Spirin, Victor 2005 RUS0.5010.26205.20 
 * 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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