Individual Calculations October 2008
 Sierra Bermejo, Gregorio  Total change: -15.60  Rating chartPersonal card
 XXV Torneo Abierto Internacional de Ajedrez de Collado Villalba G-B Collado Villalba MADRID ESP 2008-08-22
RcRownchangeKK*chgGame
 1792 1808 0.00 2 -1.04 15 -15.60 
  Rodriguez Ballespin, Daniel 1922 ESP0.001-0.3415-5.10 
  Llaneras Henarejos, Miguel 1661 ESP0.001-0.7015-10.50 

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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