In 2016, Dedekind was selected to represent Australia at the 2016 Rio Paralympic Games. She competed in four events and achieved one podium finish. She won a bronze medal in the women's 100 m backstroke S13. She achieved seventh in 400 m freestyle S13. but didn't progress to the finals in 50 m freestyle S13, 100 m freestyle S13 and 100 m freestyle S13.