Individual Calculations November 2009
 Richards, John  Total change: 10.80  Rating chartPersonal card
 2nd Sunday Open 2009 Sliema MLT 2009-02-08
RcRownchangeKK*chgGame
 1855 1810 3.50 6 0.86 15 12.90 
  Sammut, Ron 1826 MLT1.0010.52157.80 
  Psaila, Clarence 1729 MLT0.001-0.6115-9.15 
  Beulertz, Stefan 1834 MLT0.5010.03150.45 
  Klotz, Hans-Dieter 1874 GER1.0010.59158.85 
  Vella, Duncan 2000 MLT0.001-0.2515-3.75 
  Sciortino, Marilyn 1864 MLT1.0010.58158.70 

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)
 
 Summer Open 2009 Sliema MLT 2009-07-25
RcRownchangeKK*chgGame
 1881 1799 1.00 3 -0.19 15 -2.85 
  Pettersson, Alexander 1920 MLT0.001-0.3415-5.10 
  Attard, Ivan 1694 MLT1.0010.36155.40 
  Sammut Briffa, Peter 2029 MLT0.001-0.2115-3.15 

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)
 
 Candidates 2009 Sliema MLT 2009-08-11
RcRownchangeKK*chgGame
 1892 1799 2.00 5 0.05 15 0.75 
  Attard, Ivan 1694 MLT1.0010.36155.40 
  Aguilar, Filipina wc1855 MLT0.5010.08151.20 
  Vella, Duncan 2044 MLT0.001-0.2015-3.00 
  Psaila, Clarence 1772 MLT0.501-0.0415-0.60 
  Gauci, Joseph 2093 MLT0.001-0.1515-2.25 

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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