Individual Calculations September 2010
 Bettalli, Marco  Total change: -21.50  Rating chartPersonal card
 OP 10 Valle del Chiese Condino ITA 2010-07-26
RcRownchangeKK*chgGame
 1925 2074 4.00 7 -0.86 25 -21.50 
  Caldara, Sisto 1803 ITA1.0010.17254.25 
  Mazzetta, Renato 1929 ITA0.501-0.1925-4.75 
  Poletti, Fausto 1901 ITA0.501-0.2325-5.75 
  De Nisi, Roberta 1900 ITA1.0010.27256.75 
  Dappiano, Andrea 2033 ITA0.001-0.5625-14.00 
  Giacometto, Mario 1967 ITA0.501-0.1525-3.75 
  Schaberg, Wolfgang 1945 ITA0.501-0.1725-4.25 

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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