Individual Calculations May 2010
 Petrak, Robert  Total change: -7.20  Rating chartPersonal card
 Prebor Prahy - I. trida - skupina 11 various CZE 2010-01-15
RcRownchangeKK*chgGame
 2093 1997 2.50 8 -0.48 15 -7.20 
  Soukup, Vaclav 2099 CZE0.001-0.3615-5.40 
  Bakalar, Petr f2258 CZE1.0010.821512.30 
  Pesr, Jaromir 2135 CZE0.001-0.3115-4.65 
  Smutny, Jan 2083 CZE0.001-0.3815-5.70 
  Noha, Michal 2060 CZE1.0010.59158.85 
  Kandrik, Antonin 1961 CZE0.001-0.5515-8.25 
  Dolezal, Martin 2029 CZE0.5010.04150.60 
  Zdenek, Petr 2121 CZE0.001-0.3315-4.95 

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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