Individual Calculations September 2022
 Rostami, Roohollah  Total change: -7.00  Rating chartPersonal card
 10th Qazvin Cup Group B (U 1800) Qazvin IRI 2022-07-25
RcRownchangeKK*chgGame
 1546 1761 6.50 9 -0.35 20 -7.00 
  Golshanizad, Saeed 1492 IRI1.0010.17203.40 
  Akbari, Mostafa 1551 IRI1.0010.23204.60 
  Memari, Erfan 1473 IRI1.0010.16203.20 
  Poormosavi, Seyed Kanan 1618 IRI1.0010.31206.20 
  Khanjani, Rastin 1792 IRI0.001-0.4620-9.20 
  Gholami, Amir Mohammad 1580 IRI1.0010.26205.20 
  Kerdegar, Amirreza 1511 IRI0.001-0.8120-16.20 
  Saghaie, Parsina 1361  * IRI0.501-0.4220-8.40 
  Rafigh, Shervin 1535 IRI1.0010.21204.20 
 * 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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