Rapid: Individual Calculations December 2019
 Muhammad Abtahi, Abrar  Total change: -5.80  Rating chartPersonal card
 Elegant Youth Chess Championship 2019 Dhaka BAN 2019-11-15
RcRownchangeKK*chgGame
 1276 1502 2.00 3 -0.29 20 -5.80 
  S, M Abir Hossain 1139 BAN1.0010.10202.00 
  Sayed Shafaat, Mahmud 1230 BAN1.0010.17203.40 
  Marzouq, Chowdhury 1460 BAN0.001-0.5620-11.20 

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)
 

 

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