Individual Calculations September 2013
 Reichstein, Boris  Total change: 1.20  Rating chartPersonal card
 3rd Annual Potomac Open Rockville, Maryland USA 2013-08-02
RcRownchangeKK*chgGame
 1952 2110 1.50 2 0.08 15 1.20 
  Beckman, Thomas J 1972 USA0.501-0.1915-2.85 
  Snell, Christopher 1931 USA1.0010.27154.05 

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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