Individual Calculations October 2018
 Jafari, Ali Reza  Total change: -39.20  Rating chartPersonal card
 Amini Memorial Standard Cup 1397 Varamin IRI 2018-08-29
RcRownchangeKK*chgGame
 1457 1447 0.00 2 -0.98 40 -39.20 
  Riahi, Arvin 1696 IRI0.001-0.1940-7.60 
  Shiri, Omid 1218 IRI0.001-0.7940-31.60 

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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