Individual Calculations July 2013
 Abrahamyan, Tatev  Total change: 5.55  Rating chartPersonal card
 2013 National Open - Open Section Las Vegas, Nevada USA 2013-06-07
RcRownchangeKK*chgGame
 2282 2310 2.00 3 0.37 15 5.55 
  Holt, Conrad g2531 USA0.001-0.2215-3.30 
  Coraretti, Benjamin 2151 USA1.0010.29154.35 
  Kelley, Dereque D 2163 USA1.0010.30154.50 

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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