Individual Calculations August 2017
 Poththewala, Chamindi  Total change: -20.80  Rating chartPersonal card
 Sri Lanka Women's Qualifying Championship 2017 - Kandy Kandy SRI 2017-05-05
RcRownchangeKK*chgGame
 1266 1146 0.50 3 -0.52 40 -20.80 
  Herath, Uthpala Shanika 1316 SRI0.001-0.2840-11.20 
  Senanayake, A M P K 1256 SRI0.001-0.3540-14.00 
  Peththanayake, Nuwani 1227 SRI0.5010.11404.40 

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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