Individual Calculations November 2009
 Stanchev, Plamen  Total change: -25.75  Rating chartPersonal card
 IVIS open championship Sofia BUL 2009-10-14
 1917 1898 0.50 3 -1.03 25 -25.75 
  Vlashki, Nino 2288 BUL0.001-0.0925-2.25 
  Kosturski, Ivan 1746 BUL0.001-0.7025-17.50 
  Spassov, Borislav 1717 BUL0.501-0.2425-6.00 

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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