Individual Calculations September 2009
 Sarwat, Walaa  Total change: 11.80  Rating chartPersonal card
 2009 African Individual Chess Championship (gen) Tripoli LBA 2009-07-21
 2354 2390 6.00 9 1.18 10 11.80 
  Ranaivoharisoa, Alain 2083 MAD1.0010.14101.40 
  El Gindy, Essam g2501 EGY0.001-0.3510-3.50 
  Oatlhotze, Providence 2164 BOT1.0010.21102.10 
  Simutowe, Amon g2481 ZAM0.5010.12101.20 
  Arab, Adlane m2432 ALG1.0010.56105.60 
  Adly, Ahmed g2548 EGY0.001-0.2910-2.90 
  Zaibi, Amir c2123 TUN1.0010.18101.80 
  Belkhodja, Slim g2467 TUN1.0010.61106.10 
  Kobese, Watu m2391 RSA0.5010.00100.00 

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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