Individual Calculations October 2022
 Nathan, Arjun  Total change: -22.00  Rating chartPersonal card
 2022 CalChess State Open Class Championship - Class A Milpitas, California USA 2022-09-03
RcRownchangeKK*chgGame
 1475 1420 2.00 6 -0.55 40 -22.00 
  Ghosh, Prarthan 1580 USA0.5010.21408.40 
  Zheng, Yiyang 1460 USA0.001-0.4440-17.60 
  Sun, Ethan 1565 USA1.0010.694027.60 
  Zhou, Greg 1560 USA0.5010.19407.60 
  Qi, Jenny 1442 USA0.001-0.4740-18.80 
  Selvam, Swagatha 1241 USA0.001-0.7340-29.20 

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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