Individual Calculations February 2024
 Gatterdam, Karl-Heinz  Total change: -21.00  Rating chartPersonal card
 London Christmas Chess Congress 2023 - Major Harrow ENG 2023-12-28
RcRownchangeKK*chgGame
 1630 1703 2.50 6 -1.05 20 -21.00 
  Fowler, Jonathan 1789 ENG0.001-0.3820-7.60 
  Cuthbert, Larissa 1502 ENG1.0010.24204.80 
  Webb, Nicholas 1652 IRL0.001-0.5720-11.40 
  Levy, Christopher A 1603 ENG0.501-0.1420-2.80 
  Yang, Fengning 1479 NED1.0010.22204.40 
  Hayward, Alan 1757 ENG0.001-0.4220-8.40 

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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