Individual Calculations February 2023
 Egan, William J  Total change: 13.20  Rating chartPersonal card
 29th 4NCL Congress Minor Harrogate ENG 2023-01-20
RcRownchangeKK*chgGame
 1661 1530 1.00 2 0.33 40 13.20 
  Sayer, Ray M 1755 ENG1.0010.784031.20 
  Williams, Stephen 1567 WLS0.001-0.4540-18.00 

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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