Shayna Jack

Shayna Jack is a retired Australian freestyle swimmer, born on 6 November 1998 in Brisbane. She began swimming at eighteen months old as a water safety lesson and, at fifteen, won the 100 metre freestyle and the 4 x 100 metre freestyle relay at the 2014 Junior Pan Pacific Championships. A positive test for the banned substance ligandrol in 2019 brought a 24 month suspension, which the Court of Arbitration for Sport treated as unintentional ingestion and which she served in full. After returning in 2022 she won relay gold at the World Aquatics Championships in Budapest and at the Commonwealth Games in Birmingham, and took individual bronze and silver medals at those Games. At the 2024 Paris Olympics she won gold medals in the women's 4 x 100 metre and 4 x 200 metre freestyle relays and placed fifth in the individual 100 metre freestyle. She announced her retirement in 2026 after the Commonwealth Games.