Individual Calculations February 2023
 Nagahawatta, Sachin Devinda  Total change: -35.20  Rating chartPersonal card
 Kandy Open International Rating Chess Championships 2022 Kandy SRI 2022-12-27
RcRownchangeKK*chgGame
 1347 1028 0.50 4 -0.15 40 -6.00 
  Kalubowila, K H N 1609 SRI0.001-0.0240-0.80 
  Mudalige, S M I Umandi 1300 SRI0.5010.334013.20 
  Vihanga, R A D Rusiru 1210 SRI0.001-0.2640-10.40 
  Edirisinghe, E D Hansana 1268 SRI0.001-0.2040-8.00 

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)
 
 Colombo District Youth Chess Championships 2023 - Under 14 Dehiwala SRI 2023-01-06
RcRownchangeKK*chgGame
 1171 1028 0.00 1 -0.31 40 -12.40 
  Siriwardene, R B Sithum Nevanjith 1171 SRI0.001-0.3140-12.40 

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)
 
 Kaluthara International Chess Festival 2023 Kaluthara SRI 2023-01-20
RcRownchangeKK*chgGame
 1421 1028 0.00 4 -0.42 40 -16.80 
  Gamage, Ovin Vidmal 1558 SRI0.001-0.0340-1.20 
  Wettasinha, Vasanta 1533 SRI0.001-0.0440-1.60 
  Ganepola, Thushanu Yasmith 1316 SRI0.001-0.1640-6.40 
  Nimsara, S A D Tharindu 1278 SRI0.001-0.1940-7.60 

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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