Individual Calculations February 2019
 Nethsara, W W P Mandinu  Total change: -43.60  Rating chartPersonal card
 Sri Lanka National Youth Chess Championship 2018 Under - 13 years Colombo SRI 2018-12-27
RcRownchangeKK*chgGame
 1100 1120 0.50 3 -1.09 40 -43.60 
  Tennakoon, Lisara Samadhith 1256 SRI0.001-0.3240-12.80 
  Thenuharshan, G 1035 SRI0.501-0.1240-4.80 
  Mallikarachchi, Kancha 1008 SRI0.001-0.6540-26.00 

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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