Shayna Louise Jack was born on 6 November 1998 and is an Australian swimmer.
13 Facts About Shayna Jack
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From 2019 to 2021, Jack served a 24-month competition ban for an anti-doping rule violation relating to unintentional use of Ligandrol.
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Shayna Jack started swimming at the age of 18 months, after her parents thought it would be helpful to teach her and her siblings how to be safe in water.
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Shayna Jack grew to enjoy the experience and at age 10, told her parents she wanted to be an Olympican.
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Shayna Jack pulled out of the 2019 World Aquatics Championships days before it started, citing "personal reasons".
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Shayna Jack posted on Instagram saying that she "would never intentionally take a banned substance that would disrespect my sport and jeopardise my career".
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In September 2021, after Shayna Jack served the entirety of the imposed suspension, the Court of Arbitration for Sport upheld the suspension as served in full when challenged by Sport Integrity Australia and that Shayna Jack could return to competition.
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In May, at the 2022 Australian Swimming Championships, held in Adelaide, Shayna Jack achieved 2022 World Aquatics Championships and 2022 Commonwealth Games qualifying times in two individual events, winning the 50 metre freestyle with a time of 24.14 seconds, and placing second in the 100 metre freestyle behind Mollie O'Callaghan with a time of 52.60 seconds.
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On 10 August, following her medal-winning performances at the 2022 Commonwealth Games, Shayna Jack was named to the 2022 Duel in the Pool roster for Team Australia.
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At the 2023 Australian Swimming Championships, in Gold Coast, Queensland, Shayna Jack won the silver medal in the 100-metre freestyle with a 2023 World Aquatics Championships qualifying time of 52.64 seconds, finishing 0.01 seconds behind gold medalist Mollie O'Callaghan and 0.58 seconds ahead of the next-fastest competitor.
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Two months later, Shayna Jack won the B Final of the 200-metre freestyle at the 2023 Australian Swimming Trials with a time of 1:56.82.
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In 2020, Shayna Jack participated on Seven Network's reality program SAS Australia.
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Shayna Jack was awarded an Order of Australia in 2025 for her service to sport as a gold medallist at the Paris Olympic Games 2024.