Finn McCool's previous experience helped him break his duck in the Irish Stallion Farms EBF (C&G) Maiden at Navan.
The Aidan O'Brien-trained 10-11 favourite took the lead from stable companion The Eagle with more than two furlongs to go and he was soon challenged by strong-travelling newcomer Harbour Beacon.
However, Finn McCool knew what was required of him and ran right the way to the line for Donnacha O'Brien to see off Harbour Beacon by half a length.
O'Brien said: "He's still babyish but I think he has a big engine. The second horse probably isn't too bad and it was a nice performance."
I'm So Fancy (8-1) reversed Curragh and Leopardstown form with Key To My Heart in the Irish Stallion Farms EBF Fillies Maiden.
Jessica Harrington's juvenile was a couple of places behind her rival when fifth on Irish Champions Weekend most recently, but showed the better acceleration under Colm O'Donoghue to get first run on the Ballydoyle filly and kept her a head at bay.
Harrington said: "She needs the mile. He said she was getting lonely in front. He kicked a long way from home but it worked out well.
"That's her fifth run so she needs to stop now. We'll finish and head on to next spring."
Sister Blandina (7-1) got the best of a thrilling tussle with Green Or Black for the Meath Handicap, while Tipstaff justified even-money favouritism in the Irish Stallion Farms EBF Maiden.