Individual Calculations January 2011
 Buitrago, Juan Carlos  Total change: 2.10  Rating chartPersonal card
 Campeonato Panamericano Continental Absoluto 2010 Cali COL 2010-11-16
 2222 2160 4.00 9 0.14 15 2.10 
  Zapata, Alonso g2482 COL0.5010.37155.55 
  Garcia, Gildardo g2378 COL0.001-0.2215-3.30 
  Gomez, Samael 1994 COL0.501-0.2215-3.30 
  Guelgua, Alvaro 2039 COL1.0010.34155.10 
  Morales, Jhon Alexander 2309 COL0.001-0.3015-4.50 
  Estrada Nieto, Julian m2329 MEX0.5010.22153.30 
  Suasnabar, Jesus 1967 PER1.0010.25153.75 
  Arenas, David m2443 COL0.001-0.1615-2.40 
  Kostov, Alex 2055 COL0.501-0.1415-2.10 

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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