Individual Calculations October 2012
 Tomczak, Jacek  Total change: -10.30  Rating chartPersonal card
 Extraliga Seniorow - Round 4-6 Gorzow Wlkp. POL 2012-09-14
 2556 2563 0.50 3 -1.03 10 -10.30 
  Gajewski, Grzegorz g2628 POL0.001-0.4110-4.10 
  Grabarczyk, Miroslaw g2447 POL0.501-0.1610-1.60 
  Dziuba, Marcin g2592 POL0.001-0.4610-4.60 

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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