Individual Calculations September 2009
 Rizouk, Aimen  Total change: -6.50  Rating chartPersonal card
 2009 African Individual Chess Championship (gen) Tripoli LBA 2009-07-21
 2357 2506 5.50 9 -0.65 10 -6.50 
  Wageih, Kareim m2257 EGY0.501-0.3110-3.10 
  Belkhodja, Slim g2467 TUN1.0010.45104.50 
  Solomon, Kenny m2351 RSA0.001-0.7110-7.10 
  Solomons, Deon c2210 RSA1.0010.15101.50 
  Njili, Kamel f2318 TUN0.501-0.2410-2.40 
  Kobese, Watu m2391 RSA0.501-0.1610-1.60 
  El Gindy, Essam g2501 EGY0.501-0.0110-0.10 
  Oatlhotze, Providence 2164 BOT1.0010.12101.20 
  Amin, Bassem g2551 EGY0.5010.06100.60 

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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