Individual Calculations January 2023
 Goldstein, Arav  Total change: -7.20  Rating chartPersonal card
 2022 North Carolina Open Charlotte, North Carolina USA 2022-11-25
RcRownchangeKK*chgGame
 1672 1538 0.50 2 -0.18 40 -7.20 
  Hoshino, Karen wf1803 JPN0.5010.324012.80 
  Jiang, Mathew 1540 USA0.001-0.5040-20.00 

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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