Individual Calculations February 2020
 Morathenna, M M Helitha  Total change: -30.40  Rating chartPersonal card
 Sri Lanka National Youth Chess Championship 2019 - Under 15 years Colombo SRI 2019-12-27
RcRownchangeKK*chgGame
 1279 1020 0.00 4 -0.76 40 -30.40 
  Gamarathne, Oneth 1409 SRI0.001-0.0940-3.60 
  Bandara, W M Nadil Dulshen 1278 SRI0.001-0.1840-7.20 
  Hapugala, H A D K 1227 SRI0.001-0.2340-9.20 
  Rupasinghe, S S S 1203 SRI0.001-0.2640-10.40 

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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