Individual Calculations August 2023
 Jafar Nejad, Amirmohammad  Total change: -46.00  Rating chartPersonal card
 6th Iranian Amateures Chess Championship 2023 (Under 1700) Zanjan IRI 2023-06-27
RcRownchangeKK*chgGame
 1213 1357 3.50 7 -1.15 40 -46.00 
  Naderiyan, Amir Hosein 1565 IRI0.001-0.2340-9.20 
  Rezaei Moselo, Kian 1070 IRI0.501-0.3440-13.60 
  Daroogar Sabet, Samin 1057 IRI1.0010.15406.00 
  Nadrlou, Behzad 1072 IRI0.001-0.8440-33.60 
  Jarideh, Mohammad Sam 1080 IRI1.0010.17406.80 
  Ganjeh, Yousef 1577 IRI0.001-0.2240-8.80 
  Vaziri, Sadra 1069 IRI1.0010.16406.40 

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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