< Ballycasey put in a near-flawless round of jumping to land the Grade Three McSweeney Arms Hotel An Riocht Chase at Killarney.
Willie Mullins' 9-4 chance was confidently ridden by Ruby Walsh, who hadn't asked for everything when his closest pursuer Woodland Opera capsized at the second last.
Ballycasey then charged home to beat Rock The World by 14 lengths.
Owner JP McManus had a treble, culminating in Mark Walsh's second winner of the day aboard Auvergnat in the Finbarr Slattery Memorial Killarney National Handicap Chase.
Coming from off the pace, the 2-1 favourite took up the running before the last and beat Kansas City Chief by three and a half lengths.
The first Walsh and McManus win came Plinth produced an excellent effort on his first start since October when just getting the better of Flaxen Flare to land the Kelly Brothers Sliabh Luachra Hurdle.
Joseph O'Brien's 16-1 chance travelled strongly and though Flaxen Flare led on the turn for home, Walsh found another gear from Plinth, who got up late to score by a nose.
McManus made it a double when Jody McGarvey got Mon Lino home in the Killarney Racecourse Handicap Hurdle.
Paul Nolan's 6-1 chance was always in command in the closing stages, beating Definite Soldier by two lengths.
McGarvey's bid for a double was narrowly foiled in the M.D. O'Shea And Sons Mares Maiden Hurdle as his mount Open To The World could not get the better of Une Lavandiere
Noel Meade's 7-2 winner looked to be travelling best at the last, but had to battle hard to score by a length under Sean Flanagan.< Carrigmoorna Matt stayed on dourly in the testing conditions to land the Sheila Mac Kelliher Memorail Maiden Hurdle.
Vincent Halley's 15-2 chance was left in front when Impact Player was pulled up, and he saw off all challengers under Mark Enright, eventually holding Harold Peto s late surge by half a length.
