Individual Calculations February 2023
 Rajakaruna, Nuhansa  Total change: -15.60  Rating chartPersonal card
 Asia Schools CC 2022- U 15 O Kaluthara SRI 2022-12-05
RcRownchangeKK*chgGame
 1275 1176 2.50 7 -0.13 40 -5.20 
  Jayasundara, J M Daham V 1463 SRI0.5010.344013.60 
  Edirisinghe, E D Hansana 1268 SRI0.001-0.3740-14.80 
  Abiru, K A Aken 1309 SRI0.001-0.3240-12.80 
  Viranya, A R M V 1146 SRI1.0010.464018.40 
  Hewawasam, H Y Thisaga Manvidu 1398 SRI0.001-0.2240-8.80 
  Amarathunga, Piyumi Uthpala 1173 SRI0.5010.00400.00 
  Saparamadu, Sanali 1165 SRI0.501-0.0240-0.80 

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)
 
 Kandy Open International Rating Chess Championships 2022 Kandy SRI 2022-12-27
RcRownchangeKK*chgGame
 1321 1176 1.50 5 -0.26 40 -10.40 
  Gamage, Ovin Vidmal 1558 SRI0.001-0.0940-3.60 
  Hansara, W P Sandith 1028 SRI0.501-0.2040-8.00 
  Mendis, B D S 1493 SRI0.001-0.1340-5.20 
  Pallie, Ehsha Mishela wc1521 SRI0.001-0.1140-4.40 
  Samarakoon, Sasndu Ayod 1004 SRI1.0010.274010.80 

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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