Individual Calculations January 2020
 Song, Anwen  Total change: 31.60  Rating chartPersonal card
 London Junior Chess Championships U14 London ENG 2019-12-14
RcRownchangeKK*chgGame
 1490 1335 2.00 4 0.79 40 31.60 
  Cordova-Lopez, Diego Anton 1507 ENG1.0010.734029.20 
  Lv, Jason 1613 ENG0.001-0.1740-6.80 
  Evans, Ruben 1439 ENG0.001-0.3640-14.40 
  Gardiner, Ethan 1401 ENG1.0010.594023.60 

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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