Individual Calculations September 2017
 Fraser, Alan R  Total change: 8.20  Rating chartPersonal card
 104th British Championships Under 1750 Llandudno ENG 2017-07-31
 1617 1374 1.00 3 0.41 20 8.20 
  Karia, Kamlesh 1614 ENG0.001-0.2020-4.00 
  Parfett, Gerald F 1653 ENG0.001-0.1620-3.20 
  Forbes, Douglas M 1583 ENG1.0010.772015.40 

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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