Individual Calculations February 2020
 Pettersson, Jonatan  Total change: 6.80  Rating chartPersonal card
 Rilton Elo 2019 2020 Stockholm SWE 2019-12-27
RcRownchangeKK*chgGame
 1907 1845 3.50 8 0.17 40 6.80 
  Gavrilov, Maxim 1937 RUS0.001-0.3740-14.80 
  Wright, Haakon 1858 NOR0.5010.02400.80 
  Sirletti, Sonia 1854 ITA0.5010.01400.40 
  Isaksson, Per 1990 SWE0.001-0.3140-12.40 
  Algars, Olle 1974 SWE1.0010.674026.80 
  Mayrany, Fargalla 1859 SWE0.001-0.4840-19.20 
  Ekelund, Peter 1970 SWE0.5010.17406.80 
  Viklund, Dick 1816 SWE1.0010.464018.40 

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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