In a first ever for Hong Kong, Wilson won a 2 gold medals at the 2009 Summer Universiade World Student Games in Belgrade, Serbia. She won the 100 metres women’s freestyle in 54.35 seconds breaking 2008 Summer Olympics Britta Steffen's Universiade record by 0.01 seconds. The next day after her 100m freestyle success, she won her 100m butterfly semi-final in 58.52 seconds to break 2004 Summer Olympics 200m butterfly gold medalist Otylia Jędrzejczak's Universiade record. A day later she won her second gold medal in the 100 metres women's butterfly in a record time of 58.24 seconds to smash her own record by 0.28 seconds. In the 50m freestyle qualifier she broke the Hong Kong record with a time of 25.99 seconds. In the semi-finals she swam a new Hong Kong record of 25.63 pushing forward the old record time by 0.37 seconds. However, she misses out on the finals after finishing 11th in the semi-finals. She becomes the first HK athlete to win a medal – and a gold at the Universiade.