Individual Calculations February 2013
 Stamatis, Apostolos  Total change: -56.10  Rating chartPersonal card
 2012 ESSNA Team championship under 16 Attica GRE 2012-11-04
RcRownchangeKK*chgGame
 1559 1425 1.00 1 0.68 30 20.40 
  Kokkinogenis, Hristos 1559 GRE1.0010.683020.40 

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)
 
 2012 ESSNA Team championship under 12 - "Dimitris Siametis" Attica GRE 2012-11-04
RcRownchangeKK*chgGame
 1321 1425 0.50 2 -0.74 30 -22.20 
  Giavasopoulos, Thomas 1480 GRE0.5010.08302.40 
  Boulamatsis, Konstantinos 1162 GRE0.001-0.8230-24.60 

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)
 
 2013 Individual Championship of ESSNA U14 Open Athens GRE 2012-12-22
RcRownchangeKK*chgGame
 1264 1425 1.00 4 -1.81 30 -54.30 
  Prevezanos, Nikolaos 1305 GRE1.0010.343010.20 
  Karagiannis, Georgios 1405 GRE0.001-0.5330-15.90 
  Sideris, Spiridon 1186 GRE0.001-0.8030-24.00 
  Vasilakopoulos, Georgios 1160 GRE0.001-0.8230-24.60 

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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