Individual Calculations April 2009
 Wall, Brian D  Total change: -27.50  Rating chartPersonal card
 18th Annual North American Open Las vegas, Nevada USA 2008-12-26
RcRownchangeKK*chgGame
 2209 2220 1.50 5 -1.10 25 -27.50 
  Hess, Robert L m2493 USA0.001-0.1725-4.25 
  Moon, Ryan J 2213 USA0.001-0.5125-12.75 
  Haring, Ruth I wm2091 USA1.0010.33258.25 
  Velikanov, Alexander 2067 USA0.501-0.2025-5.00 
  Yang, Darwin f2182 USA0.001-0.5525-13.75 

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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