Individual Calculations December 2018
 Tahvili Raftar, Iman  Total change: -19.20  Rating chartPersonal card
 Tehran Standard Cup 16-18 Aban 1397 (U1600) Tehran IRI 2018-11-07
RcRownchangeKK*chgGame
 1250 1483 4.50 7 -0.96 20 -19.20 
  Tavana Nia, Meghdad 1277 IRI0.501-0.2620-5.20 
  Mohammadyansichani, Arshia 1284 IRI0.001-0.7620-15.20 
  Lotfi, Masoud 1110 IRI1.0010.10202.00 
  Iejhei, Hamid Reza 1260 IRI1.0010.22204.40 
  Ghavami Masouleh, S.m.majid 1223 IRI1.0010.18203.60 
  Tahmasbi, Amir Hosein 1173 IRI1.0010.14202.80 
  Mootab, Hamed 1423 IRI0.001-0.5820-11.60 

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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