Individual Calculations September 2017
 Cox, John  Total change: -16.40  Rating chartPersonal card
 104th British Championships Weekend Under 1825 Llandudno ENG 2017-07-28
 1644 1469 0.00 3 -0.82 20 -16.40 
  Woods, Timothy J 1662 ENG0.001-0.2520-5.00 
  Ramaiya, Arushi 1614 ENG0.001-0.3120-6.20 
  Jaufarally, Nadia 1657 ENG0.001-0.2620-5.20 

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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