Individual Calculations April 2008
 Urbina, Ricardo  Total change: -7.35  Rating chartPersonal card
 Internacional de Alajuela 2007 Alajuela CRC 2007-07-11
RcRownchangeKK*chgGame
 2035 2272 2.50 5 -1.47 15 -22.05 
  Solano, Agustin 2018 CRC1.0010.19152.85 
  Garcia, Sergio 2087 GUA0.001-0.7415-11.10 
  Arroyo, Luis 2021 CRC0.501-0.3115-4.65 
  Iraheta, Rafael 1955 ESA0.501-0.3715-5.55 
  Munoz, Jose Pablo 2092 CRC0.501-0.2415-3.60 

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)
 
 Campeonato Centroamericano Masculino 2007 San Salvador ESA 2007-10-23
RcRownchangeKK*chgGame
 2224 2272 6.00 9 0.98 15 14.70 
  Martinez, Luis Gerardo 1922 ESA1.0010.11151.65 
  Velasquez, Oscar 2115 ESA1.0010.29154.35 
  Gonzalez, Bernal m2434 CRC0.001-0.2915-4.35 
  Aguilar, Gustavo 2100 ESA1.0010.27154.05 
  Martinez, Nelson f2177 ESA0.501-0.1315-1.95 
  Bravo, William f2161 NCA1.0010.35155.25 
  Valdes, Leonardo m2401 CRC0.5010.17152.55 
  Arias, Lemmys f2293 ESA0.5010.03150.45 
  Leyva, Hector m2409 ESA0.5010.18152.70 

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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