[2] She began playing rugby union as a university exchange student in the United States.
[7][8] In 2018, Hamilton was a member of the NSW Waratahs inaugural Super W-winning squad, starting in their final win over the Queensland Reds.
[11][12] She later made the Wallaroos squad for a two-test series against the Black Ferns at the Laurie O'Reilly Cup.
[17] On 23 September 2020, due to the cancellation of a number of rugby union Tests due to the COVID-19 pandemic, Hamilton switched to rugby league, joining the Sydney Roosters NRL Women's Premiership team.
[18][19] In Round 2 of the 2020 NRL Women's season, she made her debut for the Roosters in a 22–12 win over the New Zealand Warriors.