The Irish rider and his speedy gelding could not be caught in the $116,000 class, a qualifier for Saturday night's rich grand prix.
Wellington International
The British rider won the $200,000 class riding Point Break and also earned the Leading International Rider award.
The all-female show jumping squad of Tiffany Foster, Erynn Ballard, Beth Underhill and Amy Millar took on 10 teams in the $150,000 event.
Great Britain’s Ben Maher was in winning form at Wellington International, taking WEF Challenge Cup 8 with Ginger-Blue.
The US rider won back-to-back Challenge Cups; two Canadians place top-10 in competitive class of 52 entries and a 12-horse jumpoff.
The Irish rider won the rich Saturday feature in a field of 43 on the grass derby field with his solid partner of five years.
Kent Farrington and Landon score in the WEF Challenge Cup 4, while Canadians place third and win a class earlier in the day.
The pair took the $215,000 NetJets CSI4* Grand Prix over a starting field of 46 and an exciting eight-horse jump-off.
Cydello is a new addition to the German rider's string; the pair edged Nicola Philippaerts with Derby de Riverland.
The Irish rider won the Dodd Technologies CSI3* at WEF aboard Jacqueline Steffens-Daly's former ride; Canadian Nicole Walker fifth.