Individual Calculations September 2009
 Ranaivoharisoa, Alain  Total change: 43.75  Rating chartPersonal card
 2009 African Individual Chess Championship (gen) Tripoli LBA 2009-07-21
 2290 2083 4.00 9 1.75 25 43.75 
  Sarwat, Walaa m2390 EGY0.001-0.1425-3.50 
  Van Den Heever, Donovan c2254 RSA0.5010.23255.75 
  Frhat, Ali m2397 EGY0.5010.36259.00 
  Oatlhotze, Providence 2164 BOT0.5010.11252.75 
  Gator, Mosab 2076 LBA1.0010.492512.25 
  Nyazi, Nehad 2237 EGY0.5010.21255.25 
  Kaabi, Mejdi m2313 TUN1.0010.792519.75 
  Ezat, Mohamed m2459 EGY0.001-0.0925-2.25 
  Njili, Kamel f2318 TUN0.001-0.2125-5.25 

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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