Florida Pearl (5-1) gained revenge for last year's narrow defeat by Native Upmanship in the John Durkan Memorial Punchestown Chase today.
Denied by Arthur Moore's horse in the Grade One contest last season, Willie Mullins' charge prevailed by the shortest of margins in another thrilling finish to the two-and-a-half mile event.
Cheltenham Gold Cup second-favourite Sackville set out to make all and was still in front at the second-last although the pack was beginning to close.
Frances Crowley's star gave way as Paul Carberry got to work on Florida Pearl but Connor O'Dwyer asked for everything on Native Upmanship and the pair were closing with every stride at the line.
But Florida Peal, whose participation had been in doubt earlier in the week after a below-par piece of work, just held on with Sackville, who went off 6-4 favourite, back in third.
Ted Walsh's Rince Ri was badly let down by his jumping and finished last of the four runners.