Blitz: Individual Calculations October 2013
 Urbina Quiroz, Edwin  Total change: 20.60  Rating chartPersonal card
 Torneo Blitz Golden Valley San Isidro de Heredia CRC 2013-08-31
 1993 2114 3.00 3 1.03 20 20.60 
  Murillo Gonzalez, Carlos E 1880 CRC1.0010.21204.20 
  Solano Cuya, Bryan 2056 CRC1.0010.42208.40 
  Castro Madrigal, Randall 2043 CRC1.0010.40208.00 

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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