Individual Calculations February 2023
 Sathsindu, W M Minura  Total change: -22.80  Rating chartPersonal card
 Asia Schools CC 2022- U 13 O Kaluthara SRI 2022-12-05
RcRownchangeKK*chgGame
 1309 1485 5.50 8 -0.05 40 -2.00 
  Pathirage, Yukitha Kenula Perera 1153 SRI0.501-0.3840-15.20 
  Nimthaka, U J Nimuthu 1209 SRI0.501-0.3340-13.20 
  Perera, K Damiru Damsara 1152 SRI1.0010.12404.80 
  Wijewickrama, Ayod Induwara 1091 SRI1.0010.08403.20 
  Pak, Aaron 1497 KGZ0.001-0.4840-19.20 
  Rathnayake, R M M P B 1129 SRI1.0010.11404.40 
  Hansana, G Haritha c1489 SRI1.0010.514020.40 
  Dumanuly, Sultanbeibarys 1749 KAZ0.5010.324012.80 

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
 1216 1485 6.00 8 -0.52 40 -20.80 
  Samaraweera, S M Sethika Hansira 1144 SRI1.0010.12404.80 
  Yanakan, P 1251 SRI0.001-0.7940-31.60 
  Bentharaarachchi, B D Daksha Hans 1136 SRI0.501-0.3940-15.60 
  Bandara, K G J C 1118 SRI1.0010.10404.00 
  Amarathunga, Piyumi Uthpala 1173 SRI1.0010.14405.60 
  Godagampala, G D Minuja Hansana 1224 SRI1.0010.18407.20 
  Sumanathilake, Yonal 1407 SRI0.501-0.1140-4.40 
  Herath, H M J R 1278 SRI1.0010.23409.20 

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)
 

 

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