Individual Calculations November 2022
 Piyathilaka, Oshadhi Ruwanya  Total change: -15.60  Rating chartPersonal card
 Negombo International Chess Festival 2022 Negombo SRI 2022-10-20
RcRownchangeKK*chgGame
 1595 1115 0.00 4 -0.39 40 -15.60 
  Amarasinghe, A A C B c1868 SRI0.0010.00400.00 
  Wilvalaarachchi, Oneli Omaya 1319 SRI0.001-0.2440-9.60 
  Hewage, Dinupa Adithya 1422 SRI0.001-0.1440-5.60 
  Abewardhana, A A B D P 1769 SRI0.001-0.0140-0.40 

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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