Individual Calculations February 2016
 Riedel, Erich  Total change: -34.40  Rating chartPersonal card
 25. Erfurter Schachfestival Hauptturnier Erfurt GER 2015-12-26
RcRownchangeKK*chgGame
 1869 1806 0.00 2 -0.86 40 -34.40 
  Diehl, Andreas 2068 GER0.001-0.1840-7.20 
  Schmieder, Kerstin 1670 GER0.001-0.6840-27.20 

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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