Mia Gross

Runner

Birthday April 18, 2001

Birth Sign Aries

Birthplace Geelong, Australia

Age 24 years old

#113,148 Most Popular

About

Australian sprinter and Olympian known for competing in the 100-meter and 200-meter events and for representing Australia at the 2024 Olympic Games in Paris. She is also known for competing at the 2025 World Championships in Tokyo, Japan and in the Commonwealth Games in 2022.

Before fame

She began athletics when she was 9 years old through Geelong Little Athletics. She grew up as a multi-sport athlete who played everything from soccer and netball to gymnastics and triathlons. She earned an athletics scholarship to Geelong Grammar School during her teenage years. Her first major international moment was in 2017 at the Commonwealth Youth Games in the Bahamas where she won gold in the mixed 4×100-meter relay. She became the Australian junior champion in both the 100m and 200m in 2018 and 2019. She transitioned to senior competition in the early 2020s and made her Australian debut at the 2022 Commonwealth Games in Birmingham. She was selected for and participated in the Paris 2024 Olympic team in the 200m.

Trivia

She competed in triathlons, cross country, gymnastics, softball, hockey, volleyball, soccer, and cricket as a child. She broke her back after competing at the 2022 Commonwealth Games which sidelined her for about six months before she began rebuilding and returned to competition in 2023. She has worked as a personal trainer. She signed with Amplify Sport in June 2025.

Family life

She was born and raised in Geelong, Victoria, Australia. She has a sister named Olivia who is a pole-vaulter and is cousins with triathlete Jo King.

Associated with

She and Riley Day are both well-known Australian sprinters