Individual Calculations November 2013
 Urbina Quiroz, Edwin  Total change: -1.65  Rating chartPersonal card
 Abierto Magistral Alekhine San Jose CRC 2013-10-05
 2054 2149 3.00 5 -0.11 15 -1.65 
  Campos Cerdas, Jorge 1959 CRC1.0010.25153.75 
  Murillo Tsijli, Manuel 2095 CRC1.0010.42156.30 
  Duran Vega, Sergio f2254 CRC0.001-0.3615-5.40 
  Espinoza Guerrero, Warner 1879 CRC1.0010.17152.55 
  Gutierrez, Oscar 2081 NCA0.001-0.5915-8.85 

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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