Individual Calculations January 2020
 Derakhshan, Alireza  Total change: -1.60  Rating chartPersonal card
 Tehran U 18 League 2019 Round 4-5 Tehran IRI 2019-11-27
RcRownchangeKK*chgGame
 1613 1631 0.00 1 -0.53 40 -21.20 
  Mousivand, Ali 1613 IRI0.001-0.5340-21.20 

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)
 
 Tehran U 18 League 2019 Round 6-9 Tehran IRI 2019-12-01
RcRownchangeKK*chgGame
 1527 1676 0.00 1 -0.70 40 -28.00 
  Khanbaz, Nima 1527 IRI0.001-0.7040-28.00 

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)
 
 Esat North Yalda Cup 1398 Tehran IRI 2019-12-09
RcRownchangeKK*chgGame
 1429 1676 5.00 5 1.19 40 47.60 
  Naseri, Ahmad Reza 1276  * IRI1.0010.08403.20 
  Markazi, Arian 1635 IRI1.0010.444017.60 
  Mirabian Abian, Mahsa 1680 IRI1.0010.514020.40 
  Mohammadi, Maryam 1276  * IRI1.0010.08403.20 
  Gholizadeh, Parya 1276  * IRI1.0010.08403.20 
 * 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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