Individual Calculations January 2017
 Urbina Quiroz, Edwin  Total change: -7.80  Rating chartPersonal card
 I Open INS - Touch Costa Rica San Jose CRC 2016-11-26
 1943 2119 4.50 7 -0.39 20 -7.80 
  Alvarado Castro, Francisco 1719  * CRC1.0010.08201.60 
  Rojas Cisneros, Kevin 1750 CRC0.501-0.4020-8.00 
  Espinoza Guerrero, Warner 1917 CRC1.0010.24204.80 
  Murillo Tsijli, Alexis m2254 CRC0.001-0.3220-6.40 
  Campos Cerdas, Jorge 1833 CRC1.0010.16203.20 
  Tapia Quiros, Gustavo 2108 CRC0.501-0.0220-0.40 
  Chaves Sanchez, Gabriel A 2022 CRC0.501-0.1320-2.60 
 * 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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