UTMB World Series

kosci run the high


Welcome to Ultra-Trail Kosciuszko by UTMB

Our team’s search for a new destination that delivers on the promise of epic scenery, super fun trails, and the ultimate trail running high has come to an end – and it just had to be here.

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. Thredbo, Perisher, Charlottes Pass, Crackenback, Lake Jindabyne, Guthega… names 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.

Developed by the hearts and minds behind Oceania’s premier trail runs Ultra-Trail Australia by UTMB and Tarawera Ultramarathon by UTMB, Ultra-Trail Kosciuszko by UTMB has been created to extract that same endorphin kick you get from running any of these iconic events.

With four distances to choose from in the Kosci27, Kosci50, Kosci100 or KosciMiler, there’s something for every trail runner, from the first timer to the ultra-enthusiast. The journey is about discovering what is possible for you. Trails are mostly non-technical and highly runnable, with courses expertly crafted by UTA founder Tom Landon-Smith, linking together routes that create trail running nirvana as you ascend to the highest point in Australia.

Trail running is a community that we’re proud to belong to. Ultra-Trail Kosciuszko by UTMB is designed with that community at our heart; with unrivalled support crew access, unique spectator points, and an unmistakeable trail running vibe. You’ll need to be quick though, with extremely limited spots available on each of the start lines, the FOMO is going to be all too real.

Kosci is also part of the UTMB World Series, with all distances carrying the opportunity to earn Running Stones, the pathway to qualification for UTMB Mont Blanc.



Alpine Playground

Nature at its best. An untamed countryside where the fresh mountain air, big skies, pure waters, expansive vistas provide a spectacular destination quite unlike any other.

You’ll come for the epic trails and end up staying a while for a cheeky local brew, a spot of fishing or just relaxing lakeside with family and friends in Australia’s ultimate alpine playground.





Happy Trails

From ascending Australia’s highest peak to running through alpine meadows, criss-crossing mountain streams, skirting crystal-clear lakes and darting through snow gum forests … the highly runnable and uniquely varied trails will keep you guessing and deliver new delights around every corner.

The smile you get from running on trails never goes away at Kosciuszko.





Social Buzz

The journey to your finish line is one you never have to do alone.

Ultra-Trail Kosciuszko by UTMB is designed with our entire community in mind. Unrivalled support crew access and unique spectator points put your crew at the heart of the action. Your crew will have just as much fun chasing you around the Snowy Mountains as you will running it.





Running 100 Miles is an undertaking like no other, and the KosciMiler provides the ultimate opportunity to test your mind, body and soul. Set amongst Australia’s alpine playground in the Snowy Mountains, the KosciMiler journeys through alpine meadows, snow gum forests and pastural lands, over crystal clear creeks and sparkling lakes, past granite outcrops and ski villages, and to the highest point in Australia – the summit of Mt Kosciuszko. Runnable, scenic and supported – the KosciMiler is the 100 Mile run to do in Australia.

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KOSCI 100 sm

Whether you’re tackling triple digits for the first time or are an experienced ultra-junkie – the Kosci100 is a delight. Super runnable trails will keep a smile firmly attached to your face while they take you through alpine meadows and past granite outcrops, through crystal clear streams and over the summit of Australia’s highest point – Mt Kosciuszko. With unrivalled support crew access, an epic social buzz and a highly achievable course, this is 100km of trail running bliss you won’t want to miss.

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KOSCI 50 sm

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.

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KOSCI 27 sm

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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