Individual Calculations February 2023
 Wickramasinghe, V W A Vinuda Vidm  Total change: -5.10  Rating chartPersonal card
 Asia Schools CC 2022- U 11 O Kaluthara SRI 2022-12-05
RcRownchangeKK*chgGame
 1284 1422 4.50 9 -1.57 30 -47.10 
  Nandasiri, Omiru 1092 SRI1.0010.12303.60 
  Sergelen, Batbayar 1262 MGL0.001-0.7130-21.30 
  Premarathne, W M Lavindu Sohas 1159 SRI1.0010.18305.40 
  Labunahewage, Dulein Bimsath 1227 SRI0.501-0.2530-7.50 
  Ganepola, Thushanu Yasmith 1316 SRI1.0010.363010.80 
  Zhauynbay, Aldiyar 1682 KAZ0.001-0.1830-5.40 
  Winartha, Muhammad Abdillah Fatih 1333 INA0.501-0.1230-3.60 
  Dandeniya, D D L N 1280 SRI0.501-0.1930-5.70 
  Haputhanthri, Aayush 1204 SRI0.001-0.7830-23.40 

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)
 
 Kandy Open International Rating Chess Championships 2022 Kandy SRI 2022-12-27
RcRownchangeKK*chgGame
 1623 1422 3.00 6 1.39 30 41.70 
  Jayasuriya, Ruvin 1139 SRI1.0010.16304.80 
  Madushanka, Harsha 1691 SRI1.0010.833024.90 
  Wiratunga, Jenith 1740 SRI0.5010.373011.10 
  Wijekoon, Chandana c1823 SRI0.5010.423012.60 
  Tennakoon, Lisara Samadhith 1717 SRI0.001-0.1530-4.50 
  Sandeepani, M Tharushi 1628 SRI0.001-0.2430-7.20 

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
 1325 1422 5.00 8 0.01 30 0.30 
  Kularathne, K A Praveen 1149 SRI1.0010.17305.10 
  Dharmakeerthi, G K Pasindu Nims 1773 SRI0.001-0.1130-3.30 
  Madurawala, M G D S Shamaya 1066 SRI1.0010.11303.30 
  De Silva, B P Chanthuli Thanishka 1373 SRI1.0010.433012.90 
  De Silva, Osheen 1763 SRI0.001-0.1230-3.60 
  Perera, G Thinuka Geethula 1174 SRI0.001-0.8130-24.30 
  Rathnagoda, R B Sadew Denuwan 1127 SRI1.0010.15304.50 
  Thilakarathne, Nisal Dilushana 1175 SRI1.0010.19305.70 

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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