Individual Calculations September 2015
 Sierra, Edwin Andres  Total change: 2.20  Rating chartPersonal card
 XXII IRT Internacional Feria de las Flores Medellin 2015 Inmemorial Oscar Castro Medellin COL 2015-08-05
 2081 2169 5.00 8 0.11 20 2.20 
  Yepez, Yeison Alexander 1851 COL1.0010.13202.60 
  Rios Parra, Juan Fernando 2079 COL1.0010.38207.60 
  Echavarria, Johann m2367 COL0.001-0.2420-4.80 
  Corredor, Fabian 2056 COL0.001-0.6520-13.00 
  Perdomo, Jefferson 2010 COL1.0010.29205.80 
  Florez, Carlos Julio 2099 COL1.0010.40208.00 
  Lozano, Nestor Favian f2153 COL0.001-0.5220-10.40 
  Florez, Luis Angel 2032 COL1.0010.32206.40 

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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