Individual Calculations February 2018
 Tapia Alvarez, Alejandro  Total change: 15.60  Rating chartPersonal card
 Campeonato Nacional Juvenil Sub20 2018 Heredia CRC 2018-01-25
RcRownchangeKK*chgGame
 1677 1434 2.00 5 0.78 20 15.60 
  Carvajal Pena, Daniel 1834  * CRC0.001-0.0820-1.60 
  Serrano Marin, Jorge 1537 CRC1.0010.642012.80 
  Castillo Morales, Thais wf1834  * CRC0.001-0.0820-1.60 
  Calvo Gutierrez, Luis Guillermo 1834  * CRC0.001-0.0820-1.60 
  Chaves Alfaro, Beatriz 1344 CRC1.0010.38207.60 
 * Rating difference of more than 400. Please read more at FIDE Handbook

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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