Glengarra, far side, holds on from Ultramarine© Photo Healy Racing
Glengarra was game off the front in the seven furlong juvenile maiden at Down Royal.
The 3/1 shot grabbed the rail and fought off Ultramarine (9/4) by a diminishing nose at the business end with Pride Of Derry two and a quarter lengths away in third at 10/1.
Trainer Paddy Twomey said: "He is a horse that is mentally immature and he has progressed with every run. i told his owners the first day that whatever he does today it will be better and I said the same the second day.
"I'd say a good horse caught him the last day over six and he was crying out for seven. He just does what he has to do in front. Hopefully he will keep coming forward, I think he is a progressive horse.
"He is a progressive horse and it (Group 2 Futurity entry) might come a bit soon for him. He's a well-bred horse, he's a brother of Tabdeed and his mother is a sister to Walk In The Park. He's bred to be a decent horse.
"He will be better with time but he is taking racing very well. I felt if we didn't give him the entry in the Futurity we might be sorry. We'll see how we get on and we'll see what the handicapper does."