In a contest fought with championship intensity, the game swung the Kerry district combination’s way nine minutes from time as O’Mahony, previously with Limerick AFC, found the net.
St Brendan’s had enjoyed a perfect start when Conor Daly scored the first of his two goals, but Ballincollig wrested the initiative with a series of excellent scores and a neatly-taken Alan O’Donovan goal.
Against the run of play, St Brendan’s were back in the hunt thanks to a second Daly goal that helped trim the deficit to 1-9 to 2-2 at the break.
Although the sides traded points after the resumption, the balance of power shifted towards St Brendan’s, boosted by players drawn from Munster Junior Club champions Ardfert.
St Brendan’s were rewarded when O’Mahony goaled to give the Kerry side a lead they never relinquished.
: St Brendan’s: C Daly 2-2, B Poff 0-4 (0-3 frees, 0-1 ‘45), S O’Mahony 1-0, S Griffin 0-1 free. Ballincollig: A O’Donovan 1-2(0-1 free), K Kelleher 0-4 (0-2 frees), D McCarthy 0-3, B Cotter and N Allen 0-1 each.
: D Dineen (Ardfert), C Moriarty (St Patrick’s), P Stack (Churchill), S Walsh (John Mitchells), M Moloney (Ardfert), D Doyle (Churchill), P O’Sullivan (Na Gaeil), D Cullouty (do), J Dowling (Ardfert), S O’Mahony (John Mitchells), B Poff (St Patrick’s), C Daly (Churchill), D O’Callaghan (St Patrick’s), M Ferris (Ardfert), S Griffin (do). Subs: A Greaney (St Pats), L O’Sullivan (do), S O’Neill (Na Gaeil), E O’Neill (do).
: D Lordan, D Hegarty, C Barrett, P Desmond, A O’Connell, S O’Donoughue, N Galvin, P Kelly, E Hegarty, K Kelleher, B Cotter, D Bowen, D McCarthy, P Corcoran, A O’Donovan. Subs: N Allen, D Keogh.
: J McCarthy (Boherbue).
: Duhallow 0-11 Dingle 0-10.
- Sunday, Jan 8: Semi Finals - O’Donovan Rossa v St Brendan’s, 12.15, Gneeveguilla; Rathmore/Kilcummin v Duhallow, 2.15, Knocknagree.