Individual Calculations September 2017
 Merriman, James  Total change: 3.60  Rating chartPersonal card
 104th British Championships Under 10 Llandudno ENG 2017-07-30
RcRownchangeKK*chgGame
 1578 1536 1.00 2 0.09 40 3.60 
  Han, Yichen 1808 NED1.0010.834033.20 
  Chung, Ethan 1348 WLS0.001-0.7440-29.60 

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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