Harvey competes in swimming and currently represents Melbourne Vicentre, having started when he was 8 years old. His recent achievements include competing at the 2023 Age Nationals in Gold Coast, where he made finals in every event, coming 4th in the 400m freestyle and 200m individual medley, 5th in the 800m freestyle and 1500m freestyle, 6th in 400m individual medley and 7th in the 200m freestyle. He was also Swimming Captain at Melbourne Grammar School and won the Junior Pier to Pub at Lorne and Junior Portsea Swim Classic over summer. His aspirations include competing in his hometown Commonwealth Games in 2026, as well as making a final at the Australian Olympic Trials in 2024.