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Sonja van der Velden (born February 11, 1976 in Nijmegen) is a Dutch competitor in synchronized swimming in which she forms a duet with her twin sister Bianca.[1]

Sonja and Bianca took part in the 2004 Summer Olympics in Athens where they finished in 13th position.[1] At the 2005 World Championships in Montreal they became 9th[1] At the 2007 World Championships in Melbourne they finished 9th in the technical routine and 10th in the free routine.[1] They also qualified themselves for the 2008 Summer Olympics in Beijing.[1]


  1. ^ a b c d e Athlete biography: Sonja van der Velden Archived 2008-09-02 at the Wayback Machine,, ret: Aug 14, 2008