Magic Of Light got up in the shadow of the post to land the Martinstown Opportunity Series Final Handicap Hurdle at Punchestown.
Jessica Harrington's mare was an 11-1 chance for the fiercely competitive contest that opened the second day of the Festival and was always in a nice position against the rail in the hands of Ryan Treacy.
Blast Of Koeman looked home and hosed after the final flight, but Magic Of Light came home strongly and won the day by a head.
A Rated was a close-up third, with well-supported 5-1 favourite Fridaynightlights fourth.
Treacy said: "Everyone wanted to be handy, but I knew I was in the right place all the way.
"I got a lovely run on the inside and I'm very privileged to be given this opportunity."