She was born with fibular hemimelia and this led to her right leg being amputated below the knee when she was 18 months old.

She received her first prosthetic running blade at the age of 10 as a result of sponsorship from Otto Bock and the Appliance and Limb Centre.

[7] At the 2019 World Para Athletics Championships in Dubai, she won the bronze medal in the Women's Long Jump T64 with a leap of 5.20m.

[9] Walsh finished fifth place in the Women's Long Jump T64, leaping to a 4.84m (+0.2) at 2023 World Para Athletics Championships in Paris.

[12] She is a member of the Sutherland District Athletics Club and coached by Matt Beckenham.