Individual Calculations July 2009
 Andreev, Andrey  Total change: -25.25  Rating chartPersonal card
 Bulgarian individual chess championship boys 20 Sofia BUL 2009-03-09
RcRownchangeKK*chgGame
 1889 1889 0.50 3 -1.01 25 -25.25 
  Iliev, Atanas 1957 BUL0.001-0.4125-10.25 
  Konstantinov, Aleksandar 1878 BUL0.501-0.0225-0.50 
  Ivanov, Aleksandar 1833 BUL0.001-0.5825-14.50 

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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