He progressed from the juvenile and underage ranks to adult level and won a Cork JAHC title in 1995.
[2] Walsh's performances with the club earned a call-up to the Imokilly team, and he was a panellist when the divisional side won consecutive Cork SHC titles in 1997 and 1998.
[3][4] He completed the full set of championship medals when Killeagh beat Mallow in a replay to win the Cork IHC in 2001.
[5] At inter-county level, Walsh first appeared on the Cork minor hurling team that won the Munster MHC title in 1990.
Walsh lined out during the latter stages of the 1991–92 National League campaign but was not included on the Munster SHC panel.