Shayna Jack, an Australian swimmer, has made significant strides in her career. Born on 6 November 1998 in Sunnybank, Queensland, she resides in Brisbane. Jack's journey in swimming began at just 18 months, influenced by her parents for water safety.

Jack has an impressive record at the World Championships. In Doha 2024, she won gold in the Women's 4 x 100m Medley Relay with a time of 3:55.98. She also secured silver in the Women's 4 x 100m Freestyle Relay and Mixed 4 x 100m Medley Relay.
Jack is a four-time Commonwealth Games medallist. She holds two world records in the Women's 4 x 100m Freestyle Relay. She set these records at the 2018 Commonwealth Games and the 2023 World Championships.
In June 2019, Jack tested positive for ligandrol, leading to a four-year suspension. After proving contamination, her suspension was reduced to two years. She returned to competitive swimming in September 2021 and qualified for the 2022 Commonwealth Games.
Jack is set to compete in the Women's 50m Freestyle Heat on 3 August 2024 at Paris La Defense Arena. This event will be crucial for her as she aims to add more accolades to her career.
Jack enjoys horse riding and spending time with animals. She trains at St Peters Western under coach Dean Boxall. Her pre-race ritual involves using the 'Vagus Nerve Rest' method to stay calm before diving.
After her suspension, Jack struggled with mental health issues. She worked with a psychiatrist to overcome these challenges and now advocates for mental health awareness among athletes.
Shayna Jack's resilience and dedication continue to inspire many in the swimming community. Her journey highlights both her achievements and the obstacles she has overcome.
Shayna Jack, an Australian swimmer, has made significant strides in her career. Born on 6 November 1998 in Sunnybank, Queensland, she resides in Brisbane. Jack's journey in swimming began at just 18 months, influenced by her parents for water safety.