Individual Calculations January 2012
 Urbina Quiros, Edwin  Total change: 19.05  Rating chartPersonal card
 Abierto Metropolitano San Jose CRC 2011-12-13
 2112 2087 4.50 7 1.27 15 19.05 
  Solano Cruz, Agustin 2019 CRC1.0010.41156.15 
  Castro Garcia, Adrian 1851 CRC1.0010.20153.00 
  Hernandez Alvarez, Tania Regla wm2225 CRC1.0010.691510.35 
  Alfaro, Carlos 2150 CRC0.5010.09151.35 
  Duran Vega, Sergio 2226 CRC0.5010.19152.85 
  Chinchilla Miranda, Eugenio f2252 CRC0.5010.22153.30 
  Bermudez Munoz, Alexander 2064 CRC0.001-0.5315-7.95 

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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