Individual Calculations January 2010
 Potrel, Manu  Total change: 20.25  Rating chartPersonal card
 Criterium R1-2 IDF FRA 2009-11-15
RcRownchangeKK*chgGame
 1909 1793 1.50 2 0.81 25 20.25 
  Ecalle, Aurelien 1848 FRA0.5010.08252.00 
  Chaigneau, Olivier 1969 FRA1.0010.732518.25 

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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