Individual Calculations January 2012
 Meza Ponce, Jerry  Total change: -9.60  Rating chartPersonal card
 World Youth Chess Championship - U 18 Open Caldas Novas/GO BRA 2011-11-18
 2026 1988 3.00 8 -0.64 15 -9.60 
  Caprio, Guido f2354 ITA0.5010.40156.00 
  Celis, Joel 1786 MAC0.001-0.7615-11.40 
  Diaz Rosas, Julio Cesar 2095 MEX0.001-0.3515-5.25 
  Cutipa, Elfer 2114 PER0.5010.17152.55 
  Correa, Gabriel 1693 ARG1.0010.15152.25 
  Aguiar, Lucas 2176 BRA0.001-0.2615-3.90 
  Whittet, Andrew N c1796 RSA1.0010.25153.75 
  Kerigan, Demre 2192 TUR0.001-0.2415-3.60 

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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