Individual Calculations July 2021
 Porcelli, Michael William  Total change: -81.60  Rating chartPersonal card
 2021 National Open - Under 2100 Las Vegas, Nevada USA 2021-06-17
RcRownchangeKK*chgGame
 1606 1767 1.50 5 -2.04 40 -81.60 
  Kosteris, Dimitri 1710 USA1.0010.424016.80 
  Tang, Austin 1509 USA0.001-0.8240-32.80 
  Hung, Anthony 1647 USA0.001-0.6640-26.40 
  Kaleem, Faisal 1608 USA0.501-0.2140-8.40 
  Qin, Vincent 1556 USA0.001-0.7740-30.80 

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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