Individual Calculations December 2023
 Johnson, Roger Dean  Total change: -48.40  Rating chartPersonal card
 2023 North Carolina Open - U2000 Charlotte, NC USA 2023-11-24
RcRownchangeKK*chgGame
 1432 1665 3.50 6 -1.21 40 -48.40 
  Yu, Yang 1396 USA1.0010.17406.80 
  Karthigeyan, Kishan 1518 USA0.001-0.7040-28.00 
  Ratliff, Ryan 1458 USA0.501-0.2740-10.80 
  Sedlock, Matthew R 1533 USA1.0010.324012.80 
  King, Paul 1391 USA1.0010.17406.80 
  Li, Allen 1295 USA0.001-0.9040-36.00 

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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