Individual Calculations October 2012
 Grabarczyk, Miroslaw  Total change: 3.20  Rating chartPersonal card
 Extraliga Seniorow - Round 4-6 Gorzow Wlkp. POL 2012-09-14
 2527 2447 1.50 3 0.32 10 3.20 
  Nurkiewicz, Maciej 2391 POL0.501-0.0810-0.80 
  Tomczak, Jacek g2563 POL0.5010.16101.60 
  Gajewski, Grzegorz g2628 POL0.5010.24102.40 

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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