Individual Calculations September 2009
 Kaabi, Mejdi  Total change: -8.85  Rating chartPersonal card
 2009 African Individual Chess Championship (gen) Tripoli LBA 2009-07-21
 2263 2313 4.50 9 -0.59 15 -8.85 
  Gator, Mosab 2076 LBA1.0010.20153.00 
  Arab, Adlane m2432 ALG0.5010.16152.40 
  Adly, Ahmed g2548 EGY0.001-0.2115-3.15 
  Wageih, Kareim m2257 EGY1.0010.42156.30 
  Belkhodja, Slim g2467 TUN0.001-0.2915-4.35 
  Zaibi, Amir c2123 TUN0.501-0.2515-3.75 
  Ranaivoharisoa, Alain 2083 MAD0.001-0.7915-11.85 
  Asabri, Hussien f2220 LBA1.0010.37155.55 
  Oatlhotze, Providence 2164 BOT0.501-0.2015-3.00 

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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