Individual Calculations August 2013
 Andrews, Todd D  Total change: -9.90  Rating chartPersonal card
 41srt Annual World Open - U 2400 Section Arlington, Virginia USA 2013-06-29
RcRownchangeKK*chgGame
 2185 2267 3.00 6 -0.66 15 -9.90 
  Daly, Troy 2131 USA0.001-0.6815-10.20 
  Lee, Megan wf2114 USA1.0010.30154.50 
  Sapozhnikov, Roman f2277 CAN0.001-0.4915-7.35 
  Iwu, Okechukwu N 2161 USA1.0010.36155.40 
  Bora, Safal 2195 USA1.0010.40156.00 
  Goldenberg, Ryan D 2234 USA0.001-0.5515-8.25 

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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