Northburn100 ultra marathon

The Northburn100 is a notoriously gritty ultramarathon held at Northburn Station in Central Otago, spanning 100 miles (161 km) with 10,000 metres of elevation gain. It is an official qualifier for the Hardrock 100 and offers distances from 5 km to 100 miles.

Listed via northburn100.co.nz. Dates and details can change — always confirm on the organiser’s site before entering.