Individual Calculations November 2011
 Sitanggang, Salor  Total change: -9.10  Rating chartPersonal card
 Indonesia Open Chess Championship 2011 Jakarta INA 2011-10-12
 2338 2376 3.50 8 -0.91 10 -9.10 
  Hidayat, Arifin 2159 INA1.0010.22102.20 
  Mareco, Sandro g2597 ARG0.001-0.2210-2.20 
  Panggabean, Hasian 2199 INA1.0010.27102.70 
  Gomez, John Paul g2514 PHI0.001-0.3110-3.10 
  Marentek, Hanny f2227 INA0.501-0.2010-2.00 
  Sudung, Tampubolon 2252 INA1.0010.33103.30 
  Paragua, Mark g2533 PHI0.001-0.2910-2.90 
  Aris, T.l.s. 2222 INA0.001-0.7110-7.10 

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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