Individual Calculations December 2018
 Ben Brahem, Aymen  Total change: 0.20  Rating chartPersonal card
 Arab Chess Individual Championship 2018 U20 Open Hammamet TUN 2018-10-28
RcRownchangeKK*chgGame
 1930 1886 4.00 9 0.01 20 0.20 
  Mekni, Wajih 1587 TUN1.0010.15203.00 
  Hamzaoui, Khalil 1680 TUN1.0010.24204.80 
  Djabri, Massinas f2065 ALG0.001-0.2720-5.40 
  Hbacha, Achraf c2218 TUN0.001-0.1220-2.40 
  Hashlmoun, Amjad 1925 PLE0.5010.05201.00 
  San, Taha Ali 1963 IRQ0.001-0.3920-7.80 
  Ouaret, Abdelouhab m2094 ALG1.0010.772015.40 
  Achour, Mohamed Anis 1896 ALG0.001-0.4920-9.80 
  Ali, Abdulaziz 1939 UAE0.5010.07201.40 

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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