Ultra Trail Kosciuszko by UTMB
The Snowy Mountains... rooftop of Australia and mother nature at her breathtaking best. Snow gum forests pierced by crystal clear mountain streams. Alpine meadows and granite outcrops. A place synonymous with adventure and all part of this new, unique trail running festival that honours its pedigree and welcomes friends new and old to something a little bit special. Oceania's Alpine Ultra-Trail will return from 27-29 November 2025.
UTMB Kosci 106.5km - 20 Weeks
Distance: 106.5km
Race Start Date: Nov 28, 2025
Program Start Date: July 14, 2025
Program Duration: 20 Weeks
Available to non-members: No
Elevation: 3034m
Made with both the 100km first timer and ultra-endurance junkie in mind, the Kosci100 course is about as fun as 100km running can get.
Starting in the ski hub of Perisher, the Kosci100 takes on epic trails, with stunning views and a true alpine experience.
Runners will complete a small starting loop before hitting the Snowies Alpine Walk, connecting them along the ridgeline overlooking the Thredbo Valley as they traverse up to Charlotte Pass.
From here runners ascend to the Summit of Mt Kosciuszko, the highest point on Mainland Australia, before making their way out along the Main Range Walking Track towards Guthega.
From here, they'll make their way back round to Perishers via Smiggin Holes, before descending down the new Perisher to Bullocks track into Bullocks flat, before the final jaunt up the valley to Thredbo.
It's not over just yet, as runners complete a loop of the Thredbo Ski area to complete their 107km journey!
UTMB Kosci 50km - 20 Weeks
Distance: 50km
Race Start Date: Nov 27, 2025
Program Start Date: July 14, 2025
Program Duration: 20 Weeks
Available to non-members: No
Elevation: 1300m
Taking on endless happy trails and packed full of everything that makes an ultra great, without the mega distance, the Kosci50 is built around being runnable and achievable.
Mixing ski resort vibes, snow gum forest trails and with the epic trail community at its heart – the Kosci50 is equal parts fun, achievable and challenging. It takes everything great about the longer courses – the scenery, happy trails and support – and packages it into a 50km bundle that gives you “I’m an ultra-runner” bragging rights without the crazy KMs.
SIGN UP TO OUR ALL IN MEMBERSHIPUTMB Kosci 32km - 14 Weeks
Distance: 32km
Race Start Date: Nov 27, 2025
Program Start Date: August 25, 2025
Program Duration: 14 Weeks
Available to non-members: No
Elevation: 630m
For those new to the sport of trail running, the Kosci30 is made for you. Non-technical trails have been linked together to take in some of the best parts of the longer courses, sure to bring a smile to your dial.
This is where the party starts. The ultimate intro to trail running, showcasing everything that’s great about Kosci. From the happy, smooth and super runnable single trail to the runner's camaraderie, support and finish line party – there’s no better way to kick off your trail running journey. Besides, we know you’ll be back next year for more…
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