Individual Calculations May 2012
 Kalugampitiya, Rs  Total change: 2.55  Rating chartPersonal card
 Sri Lanka National B Chess Championship 2012 Colombo SRI 2012-03-10
RcRownchangeKK*chgGame
 1994 2126 8.00 10 1.26 15 18.90 
  Fernando, Jmmp 1858 SRI1.0010.17152.55 
  Munasinghe , Lahiru 1933 SRI1.0010.25153.75 
  Wijekoon, Chandana 1997 SRI0.501-0.1715-2.55 
  De Silva, Elath Mathanga 1946 SRI1.0010.26153.90 
  Anuruddha, ,gc 2098 SRI1.0010.46156.90 
  Jayasundara, Pkum 2012 SRI1.0010.34155.10 
  Weerawardena, R 2105 SRI0.501-0.0315-0.45 
  Alahakoon, Isuru 1957 SRI1.0010.28154.20 
  Saranga, Nco 1954 SRI0.501-0.2315-3.45 
  Kurukulasuriya, Prasanna 2078 SRI0.501-0.0715-1.05 

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)
 
 Sri Lanka National Chess Championship 2012 Colombo SRI 2012-03-23
RcRownchangeKK*chgGame
 1997 2126 7.50 13 -1.09 15 -16.35 
  Edirisinghe, Dulan 2036 SRI0.001-0.6215-9.30 
  Koggala, W S V K 2020 SRI0.501-0.1415-2.10 
  Jayasundara, P K U M 2012 SRI0.001-0.6615-9.90 
  Saranga, N C O 1954 SRI1.0010.27154.05 
  Alahakoon, Isuru 1957 SRI0.001-0.7215-10.80 
  Wimalasuriya, Kasun M 1726  * SRI0.501-0.4215-6.30 
  Kurukulasuriya, Prasanna 2078 SRI1.0010.43156.45 
  De Silva, Osheen 1889 SRI0.001-0.8015-12.00 
  Perera, W C C 2126 SRI1.0010.50157.50 
  Weeramantry, Sunil f2177 SRI1.0010.57158.55 
  Anuruddha, G C 2098 SRI1.0010.46156.90 
  Madumadha, M Chaithika Samith 1893 SRI1.0010.21153.15 
  Wijekoon, Chandana 1997 SRI0.501-0.1715-2.55 
 * 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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