Individual Calculations January 2020
 Bellahcene, Bilel  Total change: -14.20  Rating chartPersonal card
 Arab championship 2019 open Mostaganem ALG 2019-11-27
RcRownchangeKK*chgGame
 2282 2539 5.50 9 -1.72 10 -17.20 
  Brahami, Lamine f2185 ALG1.0010.11101.10 
  Elarabi, Abobker Mohamed f2326 LBA0.501-0.2710-2.70 
  Zaibi, Amir m2369 TUN0.501-0.2210-2.20 
  Saeed, Ishaq m2426 UAE1.0010.35103.50 
  Issa, Rafat f2384 JOR0.001-0.7110-7.10 
  Boulrens, Ala Eddine 2139  * ALG1.0010.08100.80 
  Abdulwahhab, Ahmed Abdulsattar A f2228 IRQ1.0010.14101.40 
  Mansour, Sameer f2261 JOR0.001-0.8310-8.30 
  Ahmad, Al Khatib m2217 JOR0.501-0.3710-3.70 
 * 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)
 
 2. Bundesliga Sued 2019/2020 December 2019 various GER 2019-12-07
RcRownchangeKK*chgGame
 2254 2550 2.00 2 0.30 10 3.00 
  Wahedi, Ahmad Siar f2270 GER1.0010.16101.60 
  Helbig, Daniel 2237 GER1.0010.14101.40 

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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