Individual Calculations September 2017
 Watson, Steven L  Total change: 16.40  Rating chartPersonal card
 104th British Championships Weekend Under 1825 Llandudno ENG 2017-07-28
RcRownchangeKK*chgGame
 1722 1566 1.00 2 0.41 40 16.40 
  O`mahony, Mike J 1699 ENG1.0010.684027.20 
  Bovtramovics, Vladimirs 1744 LAT0.001-0.2740-10.80 

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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