Individual Calculations September 2012
 Urbina Quiroz, Edwin  Total change: 8.25  Rating chartPersonal card
 Liga Premier Nacional por Equipos San Jose CRC 2012-07-22
 2104 2102 4.50 8 0.55 15 8.25 
  Acevedo Mendez, Lisseth 1882 CRC1.0010.22153.30 
  Gutierrez, Oscar 2072 NCA1.0010.46156.90 
  Fonseca Cabrera, Ernesto 2211 NCA0.001-0.3515-5.25 
  Ruiz Blais, Sebastian 2195 CRC0.5010.13151.95 
  Granados, Carlos 2116 CRC0.5010.02150.30 
  Vives, David 2087 CRC1.0010.48157.20 
  Ugalde, Ronald 2136 CRC0.001-0.4515-6.75 
  Cabrera Chaves, Marco Antonio 2131 CRC0.5010.04150.60 

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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