Individual Calculations February 2023
 Zhang, Justin  Total change: -3.60  Rating chartPersonal card
 Tim Just Winter Open XXXIX - U2100 Section Schaumburg, IL USA 2023-01-06
RcRownchangeKK*chgGame
 1587 1627 1.00 2 -0.09 40 -3.60 
  Gupta, Arnav 1406 USA0.501-0.2840-11.20 
  Peterson, Brian 1767 USA0.5010.19407.60 

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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