Individual Calculations September 2009
 Crahan, Alan  Total change: 1.45  Rating chartPersonal card
 Open de Haute Bretagne Rennes FRA 2009-07-15
RcRownchangeKK*chgGame
 1822 1867 3.00 5 0.22 25 5.50 
  Dujardin, Bernard 1745 FRA1.0010.33258.25 
  Le Marec, Simon 2064 FRA0.001-0.2525-6.25 
  Mevel, Mael 1800 FRA0.001-0.5925-14.75 
  Pascot, Jean 1914 FRA1.0010.572514.25 
  Roussel, Yanis 1586 FRA1.0010.16254.00 

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
 6e open international de Plancoet Plancoet FRA 2009-07-27
RcRownchangeKK*chgGame
 1902 1867 2.00 5 -0.27 15 -4.05 
  Schuermans, Robert 2088 BEL0.001-0.2215-3.30 
  Burel, Iwan 1638 FRA0.501-0.2915-4.35 
  Le Moy, Patrick 1798 FRA1.0010.40156.00 
  Busnel, Laurent 1969 FRA0.001-0.3615-5.40 
  Lelong, Eric 2017 FRA0.5010.20153.00 

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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