Individual Calculations July 2009
 Zadlo, Maciej  Total change: -20.75  Rating chartPersonal card
 POL Boys Championship U-12 Leba POL 2009-03-14
RcRownchangeKK*chgGame
 1677 1667 2.50 7 -0.89 25 -22.25 
  Piotrowski, Przemyslaw 1550 POL0.001-0.6625-16.50 
  Matuszewski, Maciej 1576 POL0.501-0.1225-3.00 
  Koitka, Jakub 1680 POL0.5010.02250.50 
  Tomaszewski, Kacper 1718 POL0.5010.07251.75 
  Lebiedowicz, Borys 1770 POL1.0010.642516.00 
  Szczecina, Kamil 1686 POL0.001-0.4725-11.75 
  Ulanowski, Karol 1759 POL0.001-0.3725-9.25 

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)
 
NOTE: K factor changed
 5th Omega Cup Chess Tournament Pilzno POL 2009-04-30
RcRownchangeKK*chgGame
 1858 1667 1.50 5 0.10 15 1.50 
  Czarnecki, Wojciech 2017 POL0.001-0.1115-1.65 
  Wroblewski, Mieczyslaw 1891 POL1.0010.781511.70 
  Czernicki, Bogdan 2017 POL0.001-0.1115-1.65 
  Podolski, Marcin 1770 POL0.001-0.3615-5.40 
  Sikora, Rafal 1597 POL0.501-0.1015-1.50 

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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