Individual Calculations April 2009
 Efkarpidis, Stylianos  Total change: 0.30  Rating chartPersonal card
 92o Ambelokipi Open Amblelokipi - Athens GRE 2008-12-06
RcRownchangeKK*chgGame
 1783 1660 1.00 4 -0.48 15 -7.20 
  Himaras, Stefanos 2010 GRE0.001-0.1115-1.65 
  Zambrakos, Efthimios 1970 GRE0.5010.36155.40 
  Panagos, Theodoros 1603 GRE0.001-0.5815-8.70 
  Karystianos, Petros 1550 GRE0.501-0.1515-2.25 

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)
 
 1o Ambelokipi Christmas Open Ambelokipi - Athens GRE 2008-12-26
RcRownchangeKK*chgGame
 1754 1660 2.00 3 0.80 15 12.00 
  Poteas, Ioannis 2010 GRE0.001-0.1115-1.65 
  Panagiotopoulos, Ioannis 1702 GRE1.0010.56158.40 
  Karystianos, Petros 1550 GRE1.0010.35155.25 

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)
 
 93th Ambelokipi Open Ambelokipi, Athens GRE 2009-01-10
RcRownchangeKK*chgGame
 1964 1655 0.50 3 0.07 15 1.05 
  Poteas, Ioannis 2005 GRE0.001-0.1115-1.65 
  Mavrokordopoulos, Sotirios 2005 GRE0.5010.39155.85 
  Panagiotakos, Petros 1882 GRE0.001-0.2115-3.15 

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)
 
 5th Memorial Siaperas Ambelokipi Athens GRE 2009-02-07
RcRownchangeKK*chgGame
 1728 1655 0.50 2 -0.37 15 -5.55 
  Mbaskas, Evangelos 2005 GRE0.001-0.1115-1.65 
  Arvanitakis, Panagiotis 1451 GRE0.501-0.2615-3.90 

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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