Individual Calculations September 2017
 Turner, Joseph David  Total change: -12.80  Rating chartPersonal card
 Steve Boniface Memorial Congress 2017 Bristol ENG 2017-08-25
 1832 1931 0.00 1 -0.64 20 -12.80 
  Kramaley, David 1832 ENG0.001-0.6420-12.80 

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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