Individual Calculations February 2014
 Acosta, Mariano A  Total change: 21.15  Rating chartPersonal card
 23rd Annual North American Open - U2300 Section Las Vegas, Nevada USA 2013-12-26
 2099 1991 4.00 7 1.41 15 21.15 
  Borensztajn, David 1866 BRA0.501-0.1715-2.55 
  Yoshimura, Kenji 1889 JPN1.0010.36155.40 
  Salimbagat, Rico f2243 USA1.0010.811512.15 
  Movsisyan, Movses f2235 USA0.001-0.2015-3.00 
  Hyatt, Doug 2029 USA1.0010.55158.25 
  Ashe, Brandon 2193 USA0.5010.26153.90 
  Davidson, Kevin 2236 USA0.001-0.2015-3.00 

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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