Individual Calculations December 2021
 Ferngren, Kim  Total change: -19.40  Rating chartPersonal card
 Hasselbacken Chess Open 2021 Lang Stockholm SWE 2021-11-06
RcRownchangeKK*chgGame
 1526 1514 0.00 2 -0.97 20 -19.40 
  Malm, Simon 1995 1740 SWE0.001-0.2120-4.20 
  Moller, Tomas 1311 ISL0.001-0.7620-15.20 

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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