Blitz: Individual Calculations April 2015
 Urbina Quiroz, Edwin  Total change: -8.40  Rating chartPersonal card
 Inauguracion Sala de Ajedrez de Cartago Cartago CRC 2015-03-15
 1994 2203 5.50 8 -0.42 20 -8.40 
  Garro Reyes, Juan Mauricio 1831 CRC1.0010.10202.00 
  Quesada Campos, Jordi Alessandre 1864 CRC0.501-0.3820-7.60 
  Duran Vega, Andres 2066 CRC1.0010.32206.40 
  Murillo Tsijli, Alexis m2218 CRC0.001-0.4820-9.60 
  Arroyo Valverde, Luis Emilio 1939 CRC1.0010.18203.60 
  Chaves Sanchez, Gabriel A 1972 CRC1.0010.21204.20 
  Jimenez Garcia, Emmanuel f2227 CRC0.001-0.4720-9.40 
  Martinez Acuna, Huber 1834 CRC1.0010.10202.00 

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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