Individual Calculations September 2009
 Nyazi, Nehad  Total change: -9.45  Rating chartPersonal card
 2009 African Individual Chess Championship (gen) Tripoli LBA 2009-07-21
 2188 2237 4.50 9 -0.63 15 -9.45 
  Simutowe, Amon g2481 ZAM0.001-0.2015-3.00 
  Humrana, Mostafa 2114 LBA0.001-0.6715-10.05 
  Gator, Mosab 2076 LBA0.501-0.2115-3.15 
  Obiamiwe, Paul 2043 NGR1.0010.25153.75 
  Salem, Ali Maoloud 2131 LBA1.0010.36155.40 
  Ranaivoharisoa, Alain 2083 MAD0.501-0.2115-3.15 
  Arab, Adlane m2432 ALG0.5010.25153.75 
  Solomons, Deon c2210 RSA1.0010.46156.90 
  Zaibi, Amir c2123 TUN0.001-0.6615-9.90 

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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