Downie's introduction to the sport was through the Auskick program.[1]
Downie is a product of Hawthorn's Next Generation Academy, because of his Chinese heritage.[2] He was one of the youngest named in a stacked Vic Metro U18s side for 2019.[3]
In the 2020 AFL draftHawthorn through the club's Next Generation Academy, had the opportunity to match the North Melbourne bid and thus secured him with pick 35.[4]
Downie debuted for Hawthorn as part of the trio that debuted in the opening round of the 2021 AFL season against Essendon at Marvel Stadium.[5] Downie was designated as the medical sub for the game but he wasn't needed and didn't spend any time on the ground. The match will always be counted as his first AFL appearance.[6] He came into the team as a late replacement for the round 22 clash against the Western Bulldogs in Launceston. He helped his team defeat the 2021 premiership contenders.
On September 2, 2022, the Hawthorn Football Club announced that Downie would not continue with the club in the 2023 season. [7]