Individual Calculations February 2023
 Plotkin, Mark  Total change: -17.40  Rating chartPersonal card
 32nd annual North American Open Paradise, Nevada USA 2022-12-26
RcRownchangeKK*chgGame
 2097 2369 5.50 9 -1.74 10 -17.40 
  Wongso, Steve 1969  * USA0.501-0.4210-4.20 
  Xu, Eddie 1945 CAN1.0010.07100.70 
  Vemparala, Nikash c2102 USA0.501-0.3210-3.20 
  Guha, Rohit 2146 USA1.0010.22102.20 
  Xu, Arthur f2053 USA0.001-0.8710-8.70 
  Smith, Daniel S 2021 USA1.0010.11101.10 
  Martinez, Isaac 2056 USA0.501-0.3610-3.60 
  Huang, Youhe 2072 CAN1.0010.15101.50 
  Budisavljevic, Luka g2505 SRB0.001-0.3210-3.20 
 * Rating difference of more than 400. Please read more at FIDE Handbook

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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