Individual Calculations November 2023
 Levey, Steve  Total change: 12.00  Rating chartPersonal card
 Coulsdon Chess Dicky White October 2023 Coulsdon ENG 2023-10-02
RcRownchangeKK*chgGame
 1323 1430 2.50 3 0.60 20 12.00 
  Pratley, Ian 1393 ENG0.501-0.0520-1.00 
  Allan, Brian N 1411 SCO1.0010.47209.40 
  Aiyyapan, Sudersen 1164 ENG1.0010.18203.60 

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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