Individual Calculations January 2012
 Amin, Bassem  Total change: 17.50  Rating chartPersonal card
 Arab Games 2011. Open Section. Doha QAT 2011-12-13
 2359 2590 8.00 8 1.75 10 17.50 
  Obada, Ahmad Azeezjawad m2353 IRQ1.0010.20102.00 
  Al-Sayed, Mohammed g2514 QAT1.0010.40104.00 
  Karim, Ismael m2405 MAR1.0010.26102.60 
  Omar, Noaman 2324 UAE1.0010.18101.80 
  Samhouri, A f2377 JOR1.0010.23102.30 
  Haddouche, Mohamed m2386 ALG1.0010.24102.40 
  Al-Hadarani, Hatim f2268 YEM1.0010.13101.30 
  Chahrani, Ibrahim f2243 LBA1.0010.11101.10 

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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