Trail running course near Thredbo, New South Wales, AU
Ultra-Trail Kosciuszko by UTMB

Ultra-Trail Kosciuszko by UTMB 50K

50K·Thredbo, New South Wales
ultra50kmountainforesthigh altitudetrailqualifier

AI-generated image

Distance50K
Date26 Nov 2026
Difficulty3/5

About This Race

The Ultra-Trail Kosciuszko 50K runs through the Snowy Mountains, Australia's highest alpine region, as part of the UTMB World Series. Starting from Thredbo, the course traverses terrain that shifts between granite plateaus and snow gum woodlands, offering runners a sustained challenge without the commitment of the longer UTMB formats. November marks late spring in the Southern Hemisphere, when the high country sheds its winter snowpack and the alpine environment opens up. This distance fits naturally into the UTMB progression for runners building toward longer objectives or for those who prefer to race with more intensity than expedition-style pacing allows. The 50-kilometer format provides enough time on feet to experience the distinctive character of the Australian Alps while remaining accessible to runners stepping up from marathon or shorter ultra distances. The course reveals why this landscape holds significance beyond its modest elevation, with ecosystems found nowhere else on the continent.

The route departs from Thredbo Village and moves into the Kosciuszko National Park backcountry. Runners encounter mixed terrain that includes established trails through snow gum forests and more exposed sections across alpine areas. The Snowy Mountains present a different alpine experience than European or North American ranges, with gentler gradient approaches to elevation and vegetation adapted to both summer heat and winter snow. The course takes advantage of the region's network of historic trails, some originally cut for grazing and mountain access in the 19th century.

Location

Practical Info

Weather

Late November brings variable spring conditions with daytime temperatures ranging from cool to warm; afternoon thunderstorms possible in alpine areas, with snow unlikely but not impossible at elevation.

Accommodation

Thredbo is a ski resort village with lodges, hotels, and apartments built for seasonal tourism; booking ahead is advisable as the race coincides with the transition period between ski season and summer hiking season.

Best For

ultrarunnersmountain runnersexperienced trail runners

Notable Features

This race provides access to Australia's alpine zone, a relatively rare ecosystem confined to the country's southeastern highlands. The Snowy Mountains host unique flora including snow gums, alpine ash, and seasonal wildflowers that emerge in the November timeframe. As a UTMB World Series event, the race draws an international field while showcasing terrain distinct from the typical European alpine circuit. The course runs through Kosciuszko National Park, named for Australia's highest peak, which lies within the broader race region.