Square Sphere continued the great run of form of Robert Tyner's horses when she landed the Pertemps Handicap Hurdle under Philip Enright at Punchestown.
The victorious Oscar mare beat off the frustrating Rivage D'Or who had again travelled like a winner in the straight.
Mary Tyner, representing her husband Robert said: "She done that well. They're in great form but I thought the ground had gone a bit fast for her there - she enjoyed herself today though.
"She'll head for a mares beginners chase now and we ran her here to smarten her up. She was off a nice rating over hurdles."
Willie Mullins and Paul Townend's bid for a five-timer came up short as Kerb Appeal finished third.
