Individual Calculations October 2008
 Martinez, Nelson  Total change: -24.60  Rating chartPersonal card
 Campeonato Subzonal Masculino 2008 Guatemala, Guatemala GUA 2008-06-07
RcRownchangeKK*chgGame
 2158 2176 0.50 4 -1.64 15 -24.60 
  Gonzalez, Bernal m2431 CRC0.001-0.1915-2.85 
  Aguilar, Gustavo 2058 ESA0.001-0.6615-9.90 
  David, Alarcon 2075 NCA0.501-0.1415-2.10 
  Godoy C., Miguel Angel 2066 GUA0.001-0.6515-9.75 

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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