Individual Calculations February 2020
 Rangajeewa, M G Sachithra Sandar  Total change: -11.60  Rating chartPersonal card
 Sri Lanka National Youth Chess Championship 2019 - Under 15 years Colombo SRI 2019-12-27
RcRownchangeKK*chgGame
 1294 1204 2.50 6 0.16 40 6.40 
  Lansakara, B M 1487 SRI0.001-0.1640-6.40 
  Wimalasooriya, L H A S 1052 SRI1.0010.304012.00 
  Jayaweera, Hashan 1422 SRI0.5010.284011.20 
  Weerasinghe, Sethum 1366 SRI0.001-0.2940-11.60 
  Inpanilavan, M 1056 SRI1.0010.304012.00 
  Liyanage, Kusalvin 1378 SRI0.001-0.2740-10.80 

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)
 
 Kaluthara International Chess Festival 2020 Kaluthara SRI 2020-01-15
RcRownchangeKK*chgGame
 1246 1224 3.00 7 -0.45 40 -18.00 
  Akasha, J P Vihanga 1485 SRI0.001-0.1840-7.20 
  Viranya, A R M V 1007 SRI1.0010.22408.80 
  Lakshitha, H H Sasindu 1624  * SRI0.001-0.0840-3.20 
  Senevirathne, D C B K 1035 SRI1.0010.254010.00 
  Thenuwara, Rashmika 1529 SRI0.001-0.1440-5.60 
  Rajasinghe, T S Thewnuja 1029 SRI0.501-0.2540-10.00 
  Methmal, R M D Wathsara 1010 SRI0.501-0.2740-10.80 
 * Rating difference of more than 400. Please read more at FIDE Handbook

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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