Individual Calculations September 2009
 Aigner, Michael  Total change: -16.05  Rating chartPersonal card
 14th Annual Pacific Coast Open Agoura Hills, California USA 2009-07-16
 2132 2240 1.50 4 -1.07 15 -16.05 
  Popova, Elena 2031 RUS0.001-0.7715-11.55 
  Stevens, Lawrence 2089 USA0.501-0.2015-3.00 
  Borgen, Richard L 2128 USA1.0010.35155.25 
  Porter, Ryan W f2279 USA0.001-0.4515-6.75 

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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