Carriganog, Aidan O'Brien's first runner over obstacles for 10 years, ran out a ready winner of the Laganore Maiden Hurdle at Clonmel.
Kilcash Castle was the last horse to represent O'Brien over fences at the 2003 Galway Festival while Darapour was his last runner over hurdles at the 2002 Cheltenham Festival.
O'Brien's last winner over hurdles was the mighty Istabraq, who won at Leopardstown in December 2001.
Carriganog had run in two bumpers last season and was always travelling smoothly for Robbie Power, who had schooled the horse in preparation for the outing.
Sent off at 9-2, Carriganog picked up the running turning into the straight and beat Roman General by five lengths.
Power told At The Races: "He's a lovely, big horse, he's only four and he's got plenty of growing up to do as he's still very green but he's got a nice future.
"He was a bit tricky in some of his bumpers so Aidan sent him to us to school but in fairness, from day one he's always been good with his jumping.
"Aidan hoped he'd run well but expected him to come on for the experience. In the main he jumped very good.
"Hopefully he has a nice future."
Heaney looks a chaser of some potential after landing the Irish Stallion Farms EBF Captain Christy Novice Chase.
Tom Taaffe's 2-1 favourite eventually overhauled long-time leader Playtime Ben on the home turn, and had just Lord Ben for company at the second last.
Jumping well for Paul Townend, Heaney was always doing enough to repel his nearest challenger, eventually prevailing by a length and three quarters.
Shark Hanlon's Araku Valley produced a game performance in a first-time hood to cause a 33-1 shock in the Kilmore Maiden Hurdle.
Brian Hayes was happy to kick for home before the final bend and he kept finding more over the last two flights, coming home by eight lengths from Who's That.
Hayes made it a big-price double on the day when Old Supporter made virtually all to land the Killenaule Handicap Chase.
Peter McCreery's 14-1 chance showed plenty of courage to see off his rivals from the front, coming home three lengths ahead of Tico.
Silver Tassie got the better of a duel with Top Cat Henry to land the www.clonmelraces.ie Novice Hurdle.
Noel Meade's 4-5 favourite always appeared to be travelling the better of the two, and pulled away after the last under Davy Condon to score by two and a half lengths.
Namarama (4-1) justified favouritism to land the Nire Valley Handicap Hurdle under Niall Madden, scoring by a length and quarter from Bottle Rattler.
Fiona Mullins guided Goldboy (9-4 favourite) to victory for her uncle Willie Mullins in the Killahora INH Flat Race.