Individual Calculations January 2020
 Amrou, Ameziane  Total change: 0.40  Rating chartPersonal card
 Algerian young championship,semi final 2020 U12o Oran ALG 2019-12-22
 1174 1168 1.00 2 0.01 40 0.40 
  Bouras, Ismail 1295 ALG0.001-0.3340-13.20 
  Djillali, Aymen 1053 ALG1.0010.344013.60 

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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