Individual Calculations August 2022
 Mahdavi, Kian  Total change: 8.80  Rating chartPersonal card
 Iranian Juniors Chess Championship (Open U20) Ardebil IRI 2022-07-17
RcRownchangeKK*chgGame
 1451 1232 2.00 6 0.22 40 8.80 
  Rezaeii, Amirreza 1626 IRI0.001-0.0840-3.20 
  Ghorishi, Seied Mahdiar 1453 IRI1.0010.784031.20 
  Jahantighi, Bardia 1496 IRI0.001-0.1840-7.20 
  Jafarpour, Mobin 1125 IRI1.0010.354014.00 
  Dezhdar, Roozbeh 1872 IRI0.001-0.0140-0.40 
  Zeynali, Ali 1131 IRI0.001-0.6440-25.60 

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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