Individual Calculations April 2015
 Demirov, Todor  Total change: -36.00  Rating chartPersonal card
 Bulgarian championship boys U10 2015 Pleven BUL 2015-02-28
RcRownchangeKK*chgGame
 1423 1387 0.00 2 -0.90 40 -36.00 
  Kolev, Lachezar 1510 BUL0.001-0.3340-13.20 
  Botev, Stanislav 1335 BUL0.001-0.5740-22.80 

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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