Rigney first played hurling at juvenile and underage levels with the St Rynagh's club, before progressing to adult level.[1] He attended Banagher College and played in all grades of hurling during his time there. Rigney won a Leinster PPS SBHC title in 2024, having been red carded in the 2–27 to 4–15 extra-time win over Heywood Community School in the final.[2] His performances for the school resulted in his inclusion on the combined Offaly Schools team which won the Leinster PPS SAHC in 2023.[3]
Rigney first appeared on the inter-county as a member of the Offaly minor hurling team. His last game in the grade was a defeat by Tipperary in the 2022 All-Ireland minor final.[4] Rigney immediately progressed to the under-20 team, however, Offaly lost the 2023 All-Ireland under-20 final to Cork.[5] He was again included on the team the following year and collected a winners' medal after beating Tipperary by 2–20 to 2–14 in the All-Ireland final.[6]
Rigney made his senior team debut in a Leinster SHC game against Dublin in April 2026.[7]