Individual Calculations December 2022
 Koehler, Justus  Total change: 51.20  Rating chartPersonal card
 NRW-Klasse 1 2022-2023 October 2022 various GER 2022-10-02
RcRownchangeKK*chgGame
 2071 1966 2.00 2 1.28 40 51.20 
  Gottkehaskamp, Stefan 2094 GER1.0010.674026.80 
  Haselhorst, Helmut 2048 GER1.0010.614024.40 

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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