Individual Calculations March 2022
 George Samir, David  Total change: -24.80  Rating chartPersonal card
 Egyptian League 2021/2022 Group B 9-10 Many Cities EGY 2022-02-05
RcRownchangeKK*chgGame
 1914 2032 0.50 2 -0.81 40 -32.40 
  Nofal, Mohamed 1984 EGY0.501-0.0740-2.80 
  Alaa, Ahmed 1844 EGY0.001-0.7440-29.60 

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)
 
 10th International Chess Arena Youth Ch U18 Cairo EGY 2022-02-12
RcRownchangeKK*chgGame
 1800 2032 6.00 8 0.19 40 7.60 
  Khaled Mohamed, Amr 1632  * EGY1.0010.08403.20 
  Elsorady, Mahmoud 1423 EGY1.0010.02400.80 
  Romany, Joy 1626 EGY1.0010.08403.20 
  Tamer, Ahmed c2011 EGY0.501-0.0340-1.20 
  Magdy, Maichel 1969 EGY0.501-0.0940-3.60 
  Mokhamed Refaat Akhmed, Iusif 1634 RUS1.0010.08403.20 
  Wafa, Hamed 2025 EGY1.0010.494019.60 
  Hany Kamal, Mohamed 2077 EGY0.001-0.4440-17.60 
 * 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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