Her early sporting life was predominantly in tennis.[5] In 2016, she took up para badminton and is a member of the Duncraig Badminton Club in Perth, Western Australia. She is classified as SL4. In 2018, she won Women's Singles (SL3-SL4) and Mixed Doubles at the 2018 Oceania Championships.[6]
At the 2020 Summer Paralympics, competing in the Women's singles SL4, Dransfield lost to Helle Sofie Sagoy of Norway 2-0 in the Group Stage. She then lost to Chanida Srinavakul from Thailand 2-0 but then managed to take a set off Olivia Meier of Canada but still lost 2-1. She was therefore eliminated and did not compete in the quarterfinals.