Individual Calculations November 2009
 Ratnayake, N. S.  Total change: 0.00  Rating chartPersonal card
 The Ravana Challenge International Chess Tournament 2009 Colombo SRI 2009-09-12
RcRownchangeRpKK*chgGame
 1803 0 0.50 5 0.00 1437   0.00 
  Hapuarachchi, H L M 1998 SRI0.0010.00 0.00 
  Munasinghe, Shanaka 1773 SRI0.0010.00 0.00 
  Karunanayake, Mayuri 1680 SRI0.5010.00 0.00 
  Vivek, M 1661 IND0.0010.00 0.00 
  Jayasundara, P K U M 1902 SRI0.0010.00 0.00 

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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