Individual Calculations September 2009
 Petrak, Robert  Total change: 0.00  Rating chartPersonal card
 Prazsky sachovy festival 2009 Prague CZE 2009-06-27
RcRownchangeKK*chgGame
 2050 1997 3.50 8 0.00 15 0.00 
  Maly, Petr 1675 CZE0.501-0.3715-5.55 
  Krtous, Zdenek 1792 CZE1.0010.24153.60 
  Pick, Stepan 2146 CZE0.5010.20153.00 
  Bednar, Marcel 2099 CZE1.0010.64159.60 
  Pribyl, Josef m2346 CZE0.001-0.1115-1.65 
  Meduna, Eduard g2347 CZE0.001-0.1115-1.65 
  Plasek, Zdenek 2066 CZE0.5010.10151.50 
  Unapkoshvili, Nani 1930 GEO0.001-0.5915-8.85 

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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