Individual Calculations November 2011
 Hendra, Johan  Total change: -10.95  Rating chartPersonal card
 Indonesia Open Chess Championship 2011 Jakarta INA 2011-10-12
 2286 2216 2.50 8 -0.73 15 -10.95 
  Irwanto, Sadikin m2429 INA0.001-0.2315-3.45 
  Mahmud, Syarif f2315 INA0.5010.14152.10 
  Firdaus, Maksum f2257 INA0.5010.06150.90 
  Situru, Muhammad Ivan m2314 INA0.001-0.3715-5.55 
  Abdumalik, Zhansaya wm2030 KAZ0.501-0.2415-3.60 
  Sukandar, Irine Kharisma wg2330 INA0.001-0.3415-5.10 
  Gunawan, Johan f2308 INA1.0010.63159.45 
  Pitra, Andika f2307 INA0.001-0.3815-5.70 

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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