Individual Calculations September 2009
 Dura, Rafal  Total change: -0.75  Rating chartPersonal card
 Mistrzostwa Wielkopolski Juniorow - Grupa C-13 Lichen POL 2009-06-11
RcRownchangeKK*chgGame
 1784 1561 0.50 2 0.05 25 1.25 
  Kwiatkowski, Wiktor 1857 POL0.5010.35258.75 
  Adamczewski, Jedrzej 1710 POL0.001-0.3025-7.50 

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)
 
 XVIII Miêdzynarodowy Festiwal Szachowy - Open B Poznan POL 2009-07-19
RcRownchangeKK*chgGame
 1957 1561 0.00 1 -0.08 25 -2.00 
  Weglarz, Janusz 1957 POL0.001-0.0825-2.00 

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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