Individual Calculations September 2009
 Cholakov, Stefan  Total change: 14.25  Rating chartPersonal card
 Memorial Kamen Piskov Sofia BUL 2009-08-01
RcRownchangeKK*chgGame
 2249 2167 4.50 9 0.95 15 14.25 
  Mitrev, Kiril 2103 BUL1.0010.41156.15 
  Arnaudov, Petar 2263 BUL1.0010.63159.45 
  Ljangov, Petar 2124 BUL0.501-0.0615-0.90 
  Spiridonov, Nikola g2359 BUL0.5010.25153.75 
  Janakiev, Ivan m2232 BUL0.001-0.4115-6.15 
  Radulov, Ivan g2303 BUL0.5010.18152.70 
  Popov, Georgi 2196 BUL0.5010.04150.60 
  Spassov, Liuben g2427 BUL0.001-0.1815-2.70 
  Orev, Petar m2235 BUL0.5010.09151.35 

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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