Individual Calculations February 2023
 Hughes, Roy  Total change: 22.20  Rating chartPersonal card
 2022/23 4NCL Division 3 East Rounds 3-4 Daventry ENG 2023-01-07
RcRownchangeKK*chgGame
 2257 2011 1.50 2 1.11 20 22.20 
  Lewis, Andrew P f2229 ENG0.5010.28205.60 
  Cooksey, Paul S f2284 ENG1.0010.832016.60 

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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