Individual Calculations September 2018
 Ghayourifar, Ali  Total change: 5.60  Rating chartPersonal card
 Alborz Aria Chess School Cup 1397 Alborz IRI 2018-07-27
RcRownchangeKK*chgGame
 1424 1556 3.50 5 0.25 40 10.00 
  Vahdat, Sarina 1156  * IRI1.0010.08403.20 
  Zaeim Azad, Mohammad Yasin 1306 IRI1.0010.19407.60 
  Ghayourifar, Amir 1530 IRI0.501-0.0440-1.60 
  Rasouli Mehrjardi, Amirmohammad 1767 IRI0.001-0.2340-9.20 
  Naeimi Barchalooyi, Parsa 1363 IRI1.0010.254010.00 
 * 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)
 
 Iran Boys Student Middle school Chess Championship 1397 Zanjan IRI 2018-08-07
RcRownchangeKK*chgGame
 1515 1625 3.00 5 -0.11 40 -4.40 
  Abbasnejad, Amirreza 1640 IRI1.0010.524020.80 
  Aliakbar Sichani, Alireza 1793 IRI0.001-0.2840-11.20 
  Savadpour, Benyamin 1403 IRI1.0010.22408.80 
  Baymani, Mohsen 1225  * IRI1.0010.08403.20 
  Hamidi, Shahand 1512 IRI0.001-0.6540-26.00 
 * 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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