Outstanding and Seamie Heffernan are clear of Catalyst in the closing stages© Photo Healy Racing
Outstanding who is a full-sister to Magician, sent favourite backers home happy as she took the last at Naas, the Irish Stallion Farms EBF Fillies Maiden.
Trained by Aidan O'Brien (completing a double after the earlier success of The Happy Prince and ridden by Seamie Heffernan the daughter of Galileo was sent off the 5/2 market leader.
Prominent in the early stages she improved to lead five furlongs out. She was ridden to extend her advantage under two furlongs from home and she soon went clear, going on to score by two and a quarter lengths.
Newcomer Catalyst who was available at 50's this morning, ran a fine race to finish second at just 12/1 under Fran Berry for Paddy Twomey.
The Brendan Duke trained Renea (20/1) was a further four and three parts of a length back in third under Ronan Whelan.
Seamie Heffernan said afterwards: "She had two good runs last year and has progressed. It's nice when they improve race to race.
"She's not slow and I'd be hanging around that trip for a while. We've a few stayers!"
Additional reporting by Gary Carson