Individual Calculations October 2012
 Jakubowski, Krzysztof  Total change: -3.90  Rating chartPersonal card
 Extraliga Seniorow - Round 4-6 Gorzow Wlkp. POL 2012-09-14
 2665 2511 0.50 3 -0.39 10 -3.90 
  Dziuba, Marcin g2592 POL0.001-0.3910-3.90 
  Navara, David g2691 CZE0.001-0.2610-2.60 
  Wojtaszek, Radoslaw g2713 POL0.5010.26102.60 

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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