Following a disappointing 2012 Games, Gandy expressed an intention to swim for Australia, having lived and trained there since 2007, and served a period of ineligibility in order to do so.

She represented Australia for the first time at a FINA World Cup event in Eindhoven in August 2013.

Gandy did not qualify for the 2016 Summer Olympics, effectively ending her elite swimming career.

[2] On 19 March 2009 Gandy swam a European record time in the women's 200m butterfly at the British Championships in Sheffield.

Gandy secured her place in the British team for the 2012 Olympics with victory in the 100 m and 200 m butterfly in the trials at the London Aquatics Centre.