Individual Calculations October 2021
 Tira, Ahmed  Total change: 179.60  Rating chartPersonal card
 Tunisian Chess Championship U18 Open Monastir TUN 2021-09-01
RcRownchangeKK*chgGame
 1480 1517 7.50 8 3.07 40 122.80 
  Neggaz, Louey 1335 TUN1.0010.264010.40 
  Mallek, Saif 1408 TUN1.0010.354014.00 
  Derouiche, Mohamed Ramy 1483 TUN1.0010.454018.00 
  Boulaares, Adam 1746 TUN1.0010.794031.60 
  Ben Hamouda, Mohamed Aymen 1451 TUN1.0010.414016.40 
  Zenaidi, Mokhtar 1371 TUN1.0010.304012.00 
  Miladi, Amen wf1665 TUN1.0010.704028.00 
  Ben, Abbas Ayoub 1377 TUN0.501-0.1940-7.60 

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)
 
 African Youth Chess Championship (U16 Open) Accra GHA 2021-09-18
RcRownchangeKK*chgGame
 1640 1517 4.00 7 1.42 40 56.80 
  George Micheal, Kevin 1917  * EGY0.001-0.0840-3.20 
  Emad Mohamed, Abdallah 1505 EGY1.0010.484019.20 
  Muchiri, Rocky 1611 KEN1.0010.634025.20 
  Oosthuizen, Michal Jacobus 1917  * RSA1.0010.924036.80 
  Ajili, Rayen 1514 TUN0.001-0.5040-20.00 
  Waheed Shawky, Youssef 1592 EGY0.001-0.4040-16.00 
  Lwanga, Aguda c1422 KEN1.0010.374014.80 
 * 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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