Blitz: Individual Calculations December 2019
 Serrano Herrera, Daniela De Andre  Total change: 5.20  Rating chartPersonal card
 Campeonato Nacional de Ajedrez Relampago Infantil - Juvenil 2019 Managua NCA 2019-11-16
 1275 1181 1.00 2 0.26 20 5.20 
  Pavon Ruiz, Cristhoffer Israel 1319 NCA0.001-0.3120-6.20 
  Espinoza Guerrero, Felix Alberto 1230 NCA1.0010.572011.40 

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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