Individual Calculations October 2019
 Urbina Quiroz, Edwin  Total change: -6.40  Rating chartPersonal card
 I Torneo Cerrado Max Euwe 2019 Alajuela CRC 2019-09-08
 2057 2185 3.00 5 -0.32 20 -6.40 
  Ulloa Avellan, Oscar 1948 CRC0.001-0.8020-16.00 
  Minero Pineda, Carlos 2064 CRC1.0010.34206.80 
  Rojas Cisneros, Kevin 1965 CRC0.501-0.2820-5.60 
  Ramirez Madrid, Gerardo Alfonso f2059 CRC1.0010.33206.60 
  Gonzalez Galvan, Juan Manuel f2250 ESP0.5010.09201.80 

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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