Organiser Mark Hardman, of Cardrona, said the weather was ''as bad as it gets'' last Wednesday and Thursday, grounding the 100 pilots entered in the eight-day competition.
But he was able to hold four long-distance races, known as ''tasks'', from Treble Cone, with Englishman Anthony Shepherd and China's Zhenjun Zhao claiming first and second place respectively.
In a sport that Mr Hardman likened to aerial orienteering, pilots were required to fly through GPS-logged way-points.
During this competition, the tasks ranged in distance from 38km to 95km.
The top-placed New Zealander was Queenstown's Louis Tapper, who finished third overall to claim the title of national champion.
Tapper was pleased to come out on top after an ''intense'' week in which he lost the points from his first-day win after flying 50m outside permitted airspace.
Former Queenstowner Abe Laguna, now of Christchurch, was the second-placed Kiwi and fifth overall.
Mr Hardman said about a third of the 100 competitors were from overseas.
Other results:
Fun Class champion - Lukas Walton-Keim, of Auckland.
Sports Class champion - Abe Laguna, of Christchurch.
National women's champion - Eva Keim, of Auckland.
