Individual Calculations July 2017
 Khadem Erfani, Sobhan  Total change: 20.40  Rating chartPersonal card
 Gilan Chess Championship 2017 Rasht IRI 2017-06-18
RcRownchangeKK*chgGame
 1869 2025 6.50 9 0.51 40 20.40 
  Moradi Kelardehi, Mobin 1625  * IRI1.0010.08403.20 
  Chehrehsa, Farhan 1633 IRI1.0010.08403.20 
  Rahmani, Iraj 1625  * IRI1.0010.08403.20 
  Rastbod, Ali 2323 IRI0.5010.354014.00 
  Daghli, Arash 2220 IRI0.001-0.2540-10.00 
  Hamdam, Ali 1692 IRI0.501-0.3840-15.20 
  Navid, Sepehr 1720 IRI1.0010.14405.60 
  Kalavari, Javad 1878 IRI1.0010.304012.00 
  Torkamannejad, Javad 2106 IRI0.5010.11404.40 
 * 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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