Elliston was born in Brisbane and attended Palm Beach Currumbin State High School.
[1] Before switching to rugby league, Elliston played for the Queensland Reds sevens team in 2016 and captained Bond University at the Aon Uni 7s competition in 2017.
[5] On 21 June, Elliston made her debut for Queensland, coming off the bench in a 4–14 loss to New South Wales.
[8] In Round 1 of the 2019 NRL Women's season, she made her debut for the Broncos in their 14–4 win over the St George Illawarra Dragons.
[9] On 25 October, Elliston came off the bench in the Broncos' 20–10 NRLW Grand Final win over the Sydney Roosters.