Individual Calculations May 2010
 Nefzaoui, Rabah  Total change: -7.50  Rating chartPersonal card
 Challenge SEM des Cheminots Evian les Bains FRA 2010-02-21
RcRownchangeKK*chgGame
 1746 1692 1.00 3 -0.30 25 -7.50 
  Levieux, Michael 1772 FRA0.001-0.3925-9.75 
  Mas, Bernard 1524 FRA1.0010.28257.00 
  Jeanjean, Laurent 1942 FRA0.001-0.1925-4.75 

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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