Individual Calculations September 2021
 Hardaway, Brewington  Total change: -44.00  Rating chartPersonal card
 2021 North American Youth Chess Championships - Open Under 12 Chicago, Illinois USA 2021-08-17
RcRownchangeKK*chgGame
 1742 2026 5.50 8 -1.10 40 -44.00 
  Wang, Alexander J 1626  * USA1.0010.08403.20 
  Guo, Edward 1640 USA1.0010.09403.60 
  Min, Ryan 1679 USA1.0010.11404.40 
  Han, Johnathan 1805 CAN0.501-0.2840-11.20 
  Pang, Brian 1888 USA0.501-0.1940-7.60 
  Adewumi, Tanitoluwa 1895 USA0.501-0.1840-7.20 
  Luo, Will 1626  * USA1.0010.08403.20 
  Ho, Cooper 1780 USA0.001-0.8140-32.40 
 * 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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