Rapid: Individual Calculations August 2017
 Masrahi, Abdulrahman A  Total change: 47.80  Rating chartPersonal card
 Makkah International Chess Open Makkah KSA 2017-07-15
RcRownchangeKK*chgGame
 1980 1796 4.00 6 2.39 20 47.80 
  Salama, Kamal 1991 EGY1.0010.752015.00 
  Al Jabri, Mohammed Ali 2003 SYR0.001-0.2320-4.60 
  Dawoud, Islam Ali 1939 EGY1.0010.692013.80 
  Aouissi, Mohamed 1831 TUN1.0010.552011.00 
  Al Mutairi, Abdullah F 2008 KSA1.0010.772015.40 
  Seif, Ahmed 2108 EGY0.001-0.1420-2.80 

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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