Individual Calculations April 2008
 Abbura`, Davide  Total change: 2.25  Rating chartPersonal card
 OP Free Tour Torino ITA 2007-11-06
RcRownchangeKK*chgGame
 2011 1697 0.50 3 0.09 25 2.25 
  Martin, Tiziano 2019 ITA0.5010.37259.25 
  Ragni, Paolo 2047 ITA0.001-0.1125-2.75 
  Malano, Francesco 1967 ITA0.001-0.1725-4.25 

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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