 In 2008, Madsen represented the United States at her first Summer Paralympics, competing at the 2008 Games in Beijing in the mixed double sculls with William Brown, though they did not progress through the repechage and finished seventh.Madsen made her first appearance for the United States as a F56 track-and-field athlete in 2011.Her results leading up to the games qualified her for the 2012 Summer Paralympics in London, competing in the shot put (F54–56) and javelin throw (F54/55/56).