Individual Calculations April 2013
 Alfaro Rojas, Alfonso  Total change: -17.55  Rating chartPersonal card
 Torneo Cerrado Goicoechea A Goicoechea CRC 2013-03-11
RcRownchangeKK*chgGame
 2099 2264 4.50 8 -1.17 15 -17.55 
  Fernandez Sanchez, Mario 2093 CRC0.501-0.2315-3.45 
  Alvarez Hernandez, David 2161 CRC0.501-0.1415-2.10 
  Murillo Tsijli, Alexis m2300 CRC0.001-0.4515-6.75 
  Urbina Quiroz, Edwin 2116 CRC1.0010.30154.50 
  Cabrera Chaves, Marco Antonio 2128 CRC0.001-0.6815-10.20 
  Quesada, Randall 2040 CRC1.0010.22153.30 
  Toro Soto, Anthony 2007 CRC1.0010.18152.70 
  Castro Garcia, Adrian 1946 CRC0.501-0.3715-5.55 

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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