Roberts entered Miss Earth Australia 2013 and was third runner up, conferring the title of Miss Earth Australia - Air.[4]
Miss Earth 2014
Roberts represented Australia at Miss Earth 2014, and was third runner up, conferring the title of Miss Earth Australia - Fire 2014.[5] Two weeks after the national finals, the then director of Miss Earth Australia Roselyn Singh controversially removed the winner and appointed Roberts as the new Miss Earth Australia 2014.[3]
Miss Eco International 2015
Roberts competed against nine candidates at Miss Eco International 2015 and was second runner-up.[citation needed]
Roberts entered Miss Universe Fiji in 2024. Roberts was originally announced as the winner, but after the contest a press release stated that correct procedures had not been followed on the night and the licence holder of Miss Universe Fiji Lux Projects was not given the determining vote of the final result from the contracted organiser Grant Dwyer.[6] It was alleged that Dwyer who managed Prasad prior to the pageant, had pressured the panel which included Dwyer's friend and Indian judge Raj Suri[7] to choose Prasad, because a "Fiji Indian" contestant would bring financial benefits and sponsorships from the Indian community to the manager.[8] Following an investigation by The Miss Universe Organization, Prasad was appointed as the winner.[9]