Current champion chaser Sizing Europe defeated former champion Big Zeb in the Boylesports.com Tied Cottage Chase at Punchestown.
The Henry de Bromhead-trained 10-year-old dismissed Colm Murphy's 2010 Queen Mother winner with relative ease in what turned into a straight shootout in the Grade Two heat.
Andrew Lynch adopted positive tactics on Sizing Europe and took over from the big outsider Imperial Shabra on jumping the first fence, after which he was never headed.
Big Zeb loomed up, looking briefly threatening between the final two fences, before Lynch kicked clear.
Murphy's charge had no answer to the 9-10 favourite, who ran out a 15-length winner