Individual Calculations January 2023
 Mattsson, Michael  Total change: -6.60  Rating chartPersonal card
 Malmo Open 2022 std Malmo SWE 2022-12-17
RcRownchangeKK*chgGame
 1836 2032 2.50 4 -0.33 20 -6.60 
  Lodahl, Holger Ronnow 1825 DEN1.0010.23204.60 
  Johnson, Anders 1639 SWE0.501-0.4220-8.40 
  Seiger, Vidar 1632  * SWE1.0010.08201.60 
  Ornstein, Axel m2249 SWE0.001-0.2220-4.40 
 * Rating difference of more than 400. Please read more at FIDE Handbook

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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