Individual Calculations September 2010
 Urbina Quiros, Edwin  Total change: 0.00  Rating chartPersonal card
 Memorial Joaquin Gutierrez Mangel San Jose CRC 2010-07-26
 2037 2103 3.50 6 0.00 15 0.00 
  Sotela, Felipe 1837 CRC1.0010.18152.70 
  Barrios Zamora, Carlos 2036 CRC0.501-0.0915-1.35 
  Fernandez, Mario 1981 CRC1.0010.33154.95 
  Granados, Carlos 2120 CRC0.5010.02150.30 
  Cabrera, Marco Antonio 2133 CRC0.5010.04150.60 
  Solis, Efren 2117 CRC0.001-0.4815-7.20 

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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