Individual Calculations May 2011
 Contreras, Jose  Total change: 3.15  Rating chartPersonal card
 I IRT ROBERTO MORALES MORALES IN MEMORIAM LIMA, PERU PER 2011-01-08
RcRownchangeKK*chgGame
 2095 2181 4.50 7 0.21 15 3.15 
  Sala, Harold 1982 PER1.0010.24153.60 
  Tasayco, Alexis 1969 PER1.0010.23153.45 
  Fernandez Perez, Jorge Andres 2011 PER0.501-0.2215-3.30 
  Pacheco, Marco f2385 PER0.001-0.2415-3.60 
  Mamani, Joan Franco 2122 PER1.0010.42156.30 
  Leon, Juan Carlos 2191 PER0.5010.01150.15 
  Vega, Emilio 2002 PER0.501-0.2315-3.45 

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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