Heavy rain and slippery trails were not enough to stop more than 400 avid mountain bikers taking part one of the "toughest races in the southern hemisphere".
The ninth edition of the Whaka100 went ahead on Saturday, despite a severe wet weather warning for the region.
The event had 472 riders from seven countries competing on the brand-new course which boasts 70 per cent single track, 18 per cent gravel road, 10 per cent 4WD track, 2 per cent National Cycleway and 2000-3000m of climbing.
It is the first time the track has changed since the event began in 2007.
Nduro series organiser Tim Farmer said the track had been made harder with "more tough, technical stuff at the end of the course". "While some bikers enter the race with the cash prizes or category wins as their goal, most riders take part with the aim of improving on their personal times."