Individual Calculations February 2020
 Kathriarachchi, Rivi Nathya  Total change: 0.00  Rating chartPersonal card
 Sri Lanka National Amateur Chess Championship 2019 Colombo SRI 2019-12-19
RcRownchangeRpKK*chgGame
 1265 0 1.00 4 0.00 1072   0.00 
  Kulathilake, S M M P 1471 SRI0.0010.00 0.00 
  Wijeratne, Rehan Nawantha 1213 SRI0.0010.00 0.00 
  Pathmasiri, R D Isuru Saranga 1299 SRI0.0010.00 0.00 
  Mihindupriya, Thisitha Bashana 1077 SRI1.0010.00 0.00 

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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