Individual Calculations May 2015
 Ghoorchibeygi, Alireza  Total change: -18.60  Rating chartPersonal card
 Qazvin Norooz Cup (2015) Qazvin IRI 2015-03-25
RcRownchangeKK*chgGame
 1740 1998 5.50 8 -0.93 20 -18.60 
  Khalili, Matin 1648 IRI0.501-0.3920-7.80 
  Maleki, Amin 1598  * IRI1.0010.08201.60 
  Zabihpoor, Mohammad 1840 IRI1.0010.29205.80 
  Mahdavi, Hassan 1895 IRI0.001-0.6420-12.80 
  Afzoon, Danial 1709 IRI1.0010.16203.20 
  Maghsoudloo, Amir Ali 1818 IRI0.501-0.2420-4.80 
  Madadi, Mohammad 1761 IRI1.0010.20204.00 
  Bajalan, Mohammad 1653 IRI0.501-0.3920-7.80 
 * Rating difference of more than 400. Please read more at FIDE Handbook

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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