Michael Pender partnered the Marion Hughes-owned and bred mare HHS Fortune (ISH) to victory in the Speed Derby at the Dublin Horse Show, finishing two seconds ahead of Niamh McEvoy with Aconzina PS.
Irish riders filled all of the top five places at the RDS, with Trevor Breen taking third spot with Gonzalo.
In the later Anglesea Stakes, Aga Khan team member Cian O'Connor and his World Championship mount C Vier 2 finished as runners-up after a hugely competitive 14-horse jump-off.
They finished just over half a second behind Egyptian winner Nayel Nassar with Coronado, while Switzerland’s Steve Guerdat finished third with Albfuehren’s Maddox.
Among the national competitions that took place in the main arena, Brendan Murphy guided Grennanstown Max A Million to top spot in the Horse Sport Ireland six-year-old class.
Diarmuid Ryan and Newmarket Amy were winners of the Horse Sport Ireland four-year-old Event Horse class, while the Horse Sport Ireland five-year-old Event Horse class was won by Stephen Smith and CJO Kann Surprise.