Walsh played hurling as a student at Presentation Secondary School in Ballingarry.
[1] He later played with the Garda College and won a Ryan Cup medal in 2025 after a 0–19 to 1–13 defeat of Technological University Dublin in the final.
[2] After progressing through the juvenile and underage ranks with the Ballingarry club, Walsh eventually started to line out at adult level.
He captained Ballingarry to the South Tipperary IHC title in 2021, after a 0–24 to 1–15 win over Moyle Rovers.
[3] Walsh first appeared on the inter-county scene with Tipperary as a member of the minor team in 2016.