Individual Calculations December 2019
 Rosario Almanzar, Raydily  Total change: -19.80  Rating chartPersonal card
 Campeonato Panamericano Amateur U2000 2019 San Jose CRC 2019-10-23
 1787 1784 3.50 9 -0.99 20 -19.80 
  Del Giudice, Juan Eduardo 1991 ARG0.5010.27205.40 
  Arosemena, Franklin Alberto 1865 PAN1.0010.612012.20 
  Bonilla Sequeira, Pablo 1943 CRC0.001-0.2920-5.80 
  Diaz Charpentier, Kristel Meliss 1679 CRC0.001-0.6420-12.80 
  Vargas, Rogelio c1719 PAN0.501-0.0920-1.80 
  Pomarez Soza, Gerley Abraham 1753 NCA0.001-0.5420-10.80 
  Rondon Chacon, Yolys Desiree 1715 PAN1.0010.40208.00 
  Avendano Porras, Rodrigo 1703 CRC0.501-0.1120-2.20 
  Espitia Torres, Mateo 1713 CRC0.001-0.6020-12.00 

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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