Individual Calculations January 2018
 Ibrahim, Mahmoud  Total change: 6.60  Rating chartPersonal card
 Golden Cleopatra Open 2017 Cairo EGY 2017-12-11
RcRownchangeKK*chgGame
 1868 1966 4.00 6 0.33 20 6.60 
  Magdy, Maichel 1566  * EGY1.0010.08201.60 
  Ismail, Hamed 2144 EGY0.001-0.2720-5.40 
  Reda, Mohamed Hassan 1741 EGY1.0010.22204.40 
  Gaafar, Hassan c2220 EGY0.001-0.1920-3.80 
  Ramy, Amir 1779 EGY1.0010.26205.20 
  Tarek, Mohamed 1756 EGY1.0010.23204.60 
 * Rating difference of more than 400. Please read more at FIDE Handbook

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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