Individual Calculations January 2011
 Serefidou, Despina  Total change: 5.10  Rating chartPersonal card
 3rd GREEK TEAM TOURNAMENT B-G 2010 Prelimenary games East Macedonian-Thrace EAST MACEDONIA & THRACE GRE 2010-10-03
RcRownchangeKK*chgGame
 1846 1671 0.00 1 -0.27 15 -4.05 
  Tsakiris, Haralambos 1846 GRE0.001-0.2715-4.05 

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)
 
 World Youth Chess Championships 2010 - Girls under 14 Porto Carras, Chalkidiki - Greece GRE 2010-10-20
RcRownchangeKK*chgGame
 1849 1671 2.50 8 0.32 15 4.80 
  Jacimovic, Sara 1908 BIH0.001-0.2015-3.00 
  Zarkovic, Mila 1953 SRB0.001-0.1615-2.40 
  Giblon, Rebecca 1763 CAN0.5010.13151.95 
  Yanjinlkham, Bayarsaikhan 1761 MGL0.001-0.3815-5.70 
  Sanders, Catheleijne 1861 NED1.0010.751511.25 
  Felix, Vega Aurora Edith wf1894 PER0.001-0.2215-3.30 
  Nouman, Amna wf1752 UAE0.5010.11151.65 
  Romero, Daniela 1900 COL0.5010.29154.35 

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)
 
 Greek Individual Champ. 2011 U20-U18, Preliminaries ESSAMTH Kavala GRE 2010-11-21
RcRownchangeKK*chgGame
 1829 1658 1.50 4 0.29 15 4.35 
  Skoulakis, Charalambos 2053 GRE0.001-0.0815-1.20 
  Sourgkounis, Angelos 1853 GRE0.5010.25153.75 
  Hatzihrisafis, Dimos 1734 GRE0.5010.10151.50 
  Zisiadis, Dimitrios 1675 GRE0.5010.02150.30 

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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