Individual Calculations February 2023
 Amarathunga, Piyumi Uthpala  Total change: 62.06  Rating chartPersonal card
 CFSL Golden Jubilee International Rating Chess Tournament 2022 Colombo SRI 2022-11-29
RcRownchangeKK*chgGame
 1344 1165 2.50 7 0.33 29 9.57 
  Gnanaseelan, Jude Dorison 1445 SRI0.001-0.1629-4.64 
  Mithun, Pranav 1236 IND1.0010.602917.40 
  Bimansa, D G Jayandi 1128 SRI0.501-0.0529-1.45 
  Kodithuwakku, K A Chathura Basuru 1235 SRI1.0010.602917.40 
  Sivathanujan, S 1729 SRI0.001-0.0229-0.58 
  Nawanjana, R A Thaweesha 1162 SRI0.001-0.5029-14.50 
  Laksiri, A A Kavishka Gimshan 1475 SRI0.001-0.1429-4.06 

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)
 
 Asia Schools CC 2022- U 15 O Kaluthara SRI 2022-12-05
RcRownchangeKK*chgGame
 1373 1173 3.50 8 1.25 29 36.25 
  Gunaweera, Geenuka Kavinu 1464 SRI0.5010.352910.15 
  Kulathilake, S M M P 1461 SRI0.001-0.1629-4.64 
  Attanayake, A M N R 1289 SRI1.0010.662919.14 
  Ramanayake, Nemindi Linaya 1365 SRI0.001-0.2529-7.25 
  Saravanabaavan, Brijeash 1757 SRI0.001-0.0229-0.58 
  Gunawardena, E R Thyagi 1159 SRI0.501-0.0229-0.58 
  Rajakaruna, Nuhansa 1176 SRI0.5010.00290.00 
  Sandanayake, Dehansa Nisanduni 1312 SRI1.0010.692920.01 

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
 1469 1173 1.00 4 0.38 29 11.02 
  Newansa, M Esandi 1527 SRI0.001-0.1129-3.19 
  Dissanayake, D M S L 1456 SRI0.5010.34299.86 
  Sathsindu, W M Minura 1485 SRI0.001-0.1429-4.06 
  Weerasinghe, Liviru Eranda 1406 SRI0.5010.29298.41 

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
 1467 1173 1.00 5 0.18 29 5.22 
  Kulathilake, S M M P 1461 SRI0.001-0.1629-4.64 
  Karunarathne, K M H B 1610 SRI0.5010.442912.76 
  Deshappriya, D Kalindu 1486 SRI0.001-0.1429-4.06 
  Insara, S D Nadev 1455 SRI0.5010.34299.86 
  Liyanage, Savinu Suhaswin 1324 SRI0.001-0.3029-8.70 

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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