Murphy first played Gaelic football to a high standard as a schoolboy at St Brendan's College in Killarney.
[1] Murphy began his club career at juvenile and underage levels with Kilcummin and won a Kerry MAFC medal in 2010.
[4] Murphy first appeared on the inter-county scene with Kerry during unsuccessful spells with the minor and under-21 teams.
He later spent two seasons with the junior team and won an All-Ireland JFC medal after a defeat of Mayo in 2015.
[6][7] Murphy won an All-Ireland SFC medal as sub-goalkeeper after a defeat of Galway in the 2022 final.