Individual Calculations September 2017
 Woodward, Tim F  Total change: -21.20  Rating chartPersonal card
 104th British Championships Weekend Open Llandudno ENG 2017-07-28
 2103 1901 0.00 2 -0.53 40 -21.20 
  Hanley, James L 2238 ENG0.001-0.1240-4.80 
  Waterfield, John W 1967 WLS0.001-0.4140-16.40 

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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