Individual Calculations September 2009
 Iturralde Borda, Jon  Total change: -13.50  Rating chartPersonal card
 III Open Internacional Ajderez A. D. San Juan Pamplona ESP 2009-07-27
RcRownchangeKK*chgGame
 2125 1841 0.50 6 -0.54 25 -13.50 
  Garbisu De Goni, Unai m2241  * ESP0.001-0.0825-2.00 
  Burguete Archel, Eduardo 2220 ESP0.001-0.0925-2.25 
  Leranoz Zabalza, Adrian 2107 ESP0.001-0.1825-4.50 
  Rodriguez Ferraz, Borja 1996 ESP0.5010.21255.25 
  Ugalde Ezcurra, Jose Miguel 2169 ESP0.001-0.1325-3.25 
  Rodriguez Lapetra, Pablo 2014 ESP0.001-0.2725-6.75 
 * Rating difference of more than 400. Please read more at FIDE Handbook

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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