Individual Calculations February 2015
 Aragon Alvarado, Christopher  Total change: 33.20  Rating chartPersonal card
 Campeonato Nacional CRC Sub 20 Abierto 2015 San Jose CRC 2015-01-20
RcRownchangeKK*chgGame
 1682 1696 5.00 8 0.83 40 33.20 
  Huang He, Guan Lin 1734 CRC0.001-0.4540-18.00 
  Soto Alfaro, Braulio 1509 CRC1.0010.264010.40 
  Chaves Williams, Jose Andres 1616 CRC0.501-0.1140-4.40 
  Granados, Maria wm1855 NCA0.5010.21408.40 
  Ramirez Madrid, Gerardo Alfonso 1435 CRC1.0010.18407.20 
  Bonilla Morales, Kevin 1687 CRC1.0010.494019.60 
  Ramirez Arroyo, Joan Emmanuel 2008 CRC0.001-0.1440-5.60 
  Castro Garcia, Alejandro 1614 CRC1.0010.394015.60 

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)
 

 

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