Tony McCoy hit the Grade One target with a fine ride on Carlingford Lough in the Growise Champion Novice Chase.
Morning Assembly (7-4 favourite) and Don Cossack cut out much of the running, with the former taking a half-length advantage three from home.
Ruby Walsh arrived on the scene two out with Ballycasey seemingly full of running, but McCoy switched the John Kiely-trained Carlingford Lough to the inner and joined issue at the last, where Morning Assembly's chance was ended by a bad mistake.
McCoy's JP McManus-owned mount got away from it the better and with his rider in full flight, Carlingford Lough, winner of last year's Galway Plate and successful at the top level at Leopardstown's Christmas meeting, stayed on strongly for a four-and-a-quarter-length triumph.
Kiely said: "He is a very easy horse to train, once we discovered how to do it. He needs a little break after his races and he came good.
"The ground was perfect for him today, and we will see how he does next year. Next year will tell us a lot and he will be going for those conditions races.
"He deserves a summer break now."