Jordan Coyle and Keep Me With You edged countrymen Darragh Kenny and Philip McGuane; two Canadians place in top 10.
The Irish rider's fairly new partnership with the big-strided and sometimes "misunderstood" mare is steadily improving in the five-star ranks.
The Irish rider piloted Eddy Blue to victory in the Longines FEI Jumping World Cup of London to wrap the holiday show.
The three countrymen topped the podium in the rich Saturday night event; top Canadian was Kyle Timm with Casino Calvin, 7th.
An enormous field of 72 entries tackled the WEF Challenge Cup Round 1, with the Irishman coming out on top.
Another exciting tournament wrapped up in Calgary with Amanda Derbyshire, Lillie Keenan and Darragh Kenny emerging as the big winners.
The Irish rider won the CHF 140,000 Southern Arches CSI3* Grand Prix riding the stallion Volnay du Boisdeville who's "not a stallion at all.”
Carrying the momentum of a win in the speed class in the morning, the Irishman also took the €100,000 feature class in the afternoon.
Darragh Kenny and Ben Maher topped the Round 1 field at the spectacular oceanside venue for team owner Jennifer Gates.
Top sport at the newly-renamed Wellington International will conclude on April 3 with the season’s highly-anticipated Rolex week.