Troy first played hurling to a high standard as a student at Coláiste Choilm in Tullamore.
After progressing through the juvenile and underage ranks as an outfield player with the Ballinamere club, he made his senior team debut in 2021.
[3] He immediately progressed to the under-20 team and was in goal when they lost the 2023 All-Ireland under-20 final to Cork.
[4] Troy made his senior team debut in a defeat by Carlow in a National Hurling League game against Wexford in 2024, and quickly established himself as first-choice goalkeeper.
[5] He won a Joe McDonagh Cup medal in his debut season after a defeat of Laois in the final.