Rapid: Individual Calculations September 2021
 Salah Mostafa, Ahmed  Total change: -88.60  Rating chartPersonal card
 Black Horse 13 Alexandria EGY 2021-08-12
RcRownchangeKK*chgGame
 1532 1952 2.50 7 -3.57 20 -71.40 
  Zaki, Ahmed Mohammed 1386 EGY0.001-0.9820-19.60 
  Mugtaba, Hassan Osman 1308 SUD1.0010.01200.20 
  Rashid A, Fawzi 1678 EGY1.0010.17203.40 
  Darwish, Amro 1944 EGY0.001-0.5120-10.20 
  Kamil, Askandar 1517 EGY0.001-0.9420-18.80 
  Nabil, Mena 1217 EGY0.501-0.4920-9.80 
  Mohamed, Aly Essam 1675 EGY0.001-0.8320-16.60 

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)
 
 Black Horse 15 Alexandria EGY 2021-08-27
RcRownchangeKK*chgGame
 1731 1952 6.00 9 -0.86 20 -17.20 
  Mostafa, M.yehya 1460 EGY1.0010.04200.80 
  Tarek, Ibrahem Mohamed 1729 EGY1.0010.22204.40 
  Adel, Sara wf1826 EGY0.001-0.6720-13.40 
  Rashid A, Fawzi 1678 EGY1.0010.17203.40 
  Abdel Razik, Islam 1813 EGY1.0010.31206.20 
  Hashem, Mostafa 1790 EGY0.001-0.7120-14.20 
  Salah, Mohamed 1633 EGY1.0010.13202.60 
  Shehab Elsayed, Mohamed 1787 EGY1.0010.28205.60 
  Elsayed, Gamal 1859 EGY0.001-0.6320-12.60 

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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