About
The Great Naseby Water Race, held in Central Otago's highest town, Naseby, offers a unique ultramarathon experience through a historic and challenging landscape. Participants loop a 10 km circuit of gravel roads and forest tracks, passing the historic Water Race canal from the 1860s gold-mining days. Races extend from 50 km to a staggering 200 miles, demanding both endurance and perseverance. Moderate elevation changes, coupled with the repetitive terrain and winter weather, create a tough yet rewarding challenge for ultrarunners from New Zealand and beyond. Solo and team options with strict cut-offs test participants' steady pacing and grit.
Races
50K
Aug 29, 2026 (Sat) - 09:00
Distance
50 km
Course
Multiple loops
80K
Aug 29, 2026 (Sat) - 05:00
Distance
80 km
Course
Multiple loops
100K
Aug 28, 2026 (Fri) - 10:00
Distance
100 km
Course
Multiple loops
161K
Aug 28, 2026 (Fri) - 08:00
Distance
160.9 km
Course
Multiple loops
200K
Aug 28, 2026 (Fri) - 08:00
Distance
200 km
Course
Multiple loops
322K
Aug 26, 2026 (Wed) - 08:00
Distance
321.9 km
Course
Multiple loops
Weather history
Temperature
0°C / 8°C
Feels like
-3°C / 5°C
Avg sunshine hours
7h 23m
Avg rainfall
1 mm
Avg snowfall
-
Max wind speed
16.4 km/h (Gentle breeze)
Sweat loss rate
Low
Trail conditions
Firm and frosty ground


