The in-foal Innisfree Beauty bowed out on a high, as she claimed the Adare Manor Opportunity Handicap Hurdle.
Having made the breakthrough at Sligo in July, the Ciaran Murphy trained six-year-old since failed to make an impact on her next two starts.
Available at 7/1 in early shows, the Yeats bay eventually went off an 18/5 chance in the colours of Gabriel O'Gara and Sean O'Brien.
Always towards the head of affairs under Jack Foley, she was pushed along and improved into a definite lead before the final flight, keeping on well to score by a length-and-a-quarter.
The hat-trick seeking Rotten Row (3/1f) had dropped off the leaders when he unseated Paddy O'Hanlon two out.
Assistant trainer Dot Love said: "She's in-foal and it's her last run so it's brilliant for the owner.
"She won once for us before and the owner brought his grandson that day too. It's been very exciting today."
Additional reporting by Gary Carson