Individual Calculations May 2011
 Petlak, Josef  Total change: -43.05  Rating chartPersonal card
 Krajsky prebor I JMSS various CZE 2010-10-10
RcRownchangeKK*chgGame
 1958 2031 2.50 9 -2.87 15 -43.05 
  Pehal, Ludek 1797 CZE1.0010.21153.15 
  Chladek, Vlastimil 2073 CZE0.001-0.4415-6.60 
  Marek, Jiri 1997 CZE0.001-0.5515-8.25 
  Horak, Jaroslav 1883 CZE0.001-0.7015-10.50 
  Petruska, Miroslav 1992 CZE0.001-0.5515-8.25 
  Musil, Jiri 1946 CZE1.0010.38155.70 
  Sysel, Michal 1927 CZE0.001-0.6415-9.60 
  Vesely, Jaromir 1989 CZE0.001-0.5615-8.40 
  Krena, Bohuslav 2020 CZE0.501-0.0215-0.30 

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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