Individual Calculations May 2013
 Billey, David  Total change: 24.30  Rating chartPersonal card
 16e Open de la Bruche - Open A MOLSHEIM FRA 2013-04-18
RcRownchangeKK*chgGame
 1610 1488 2.50 5 0.81 30 24.30 
  Gerthoffert, David 1692 FRA0.001-0.2430-7.20 
  Loew, Matthieu 1575 FRA0.001-0.3830-11.40 
  Feld, Alain 1566 FRA1.0010.613018.30 
  Charlemagne, Didier 1600 FRA0.5010.15304.50 
  Meyer, Clement 1615 FRA1.0010.673020.10 

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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