Individual Calculations April 2023
 Lancaster, Roger  Total change: 12.80  Rating chartPersonal card
 2022/23 4NCL Division 3 East Rounds 7-8 Daventry ENG 2023-03-25
RcRownchangeKK*chgGame
 1851 1799 1.50 2 0.64 20 12.80 
  Van Kemenade, Rudy 1938 WLS0.5010.19203.80 
  Alcock, Graham P 1763 ENG1.0010.45209.00 

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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