Individual Calculations July 2015
 De Silva, Osheen  Total change: 21.20  Rating chartPersonal card
 5th Dhamso International Chess Festival 2015 Ambalangoda SRI 2015-05-29
RcRownchangeKK*chgGame
 1619 1888 6.00 8 -0.49 20 -9.80 
  Srinath, K A D 1488  * SRI1.0010.08201.60 
  Alwala, A D Hansaja Ramith 1488  * SRI1.0010.08201.60 
  Nawarathne, Nilnuwan 1673 SRI0.501-0.2720-5.40 
  Koggala, W S T N 1609 SRI1.0010.16203.20 
  Abhimanyu, Iraja 1540 SRI0.501-0.3920-7.80 
  Subasinghe, D D C H 1678 SRI1.0010.23204.60 
  Prabath, D G Ravi 1812 SRI0.001-0.6020-12.00 
  Ranasinghe, P M 1663 SRI1.0010.22204.40 
 * 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)
 
 National B Chess Championship 2015 Colombo SRI 2015-06-19
RcRownchangeKK*chgGame
 1882 1888 6.50 10 1.55 20 31.00 
  Amarasekara, Lakmal 1540 SRI0.001-0.8920-17.80 
  Siriwardena, G T D 1599 SRI1.0010.16203.20 
  Theekshana, H G Denuwan 1654 SRI1.0010.21204.20 
  Amarasinghe, A A C B 1829 SRI1.0010.42208.40 
  Jayasundara, P K U M c2031 SRI1.0010.692013.80 
  Galappaththi, Chinthaka Anuruddh f2130 SRI0.5010.30206.00 
  Peiris, T S S f2026 SRI0.5010.19203.80 
  Doluweera, Minul Sanjula c2046 SRI0.5010.21204.20 
  Naotunna, Dineth Nimnaka 2006 SRI0.5010.16203.20 
  Priyankara, Chamil 1960 SRI0.5010.10202.00 

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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