Distance
Climb
Start Time
Cutoff
Terrain
A 102km ultra trail race through Australia's Snowy Mountains, featuring alpine terrain, summit of Mt Kosciuszko, and stunning scenery. Designed for both first-time 100km runners and experienced ultra-endurance athletes with excellent support and runnable trails.
Summit of Mt Kosciuszko (Australia's highest peak)
Alpine meadows and snow gum bush
Snowies Alpine Walk with Thredbo Valley views
Main Range Walking Track
Perisher to Bullocks track descent
Thredbo Ski area loop
Start / Finish
Perisher Ski Resort
Thredbo (after completing Thredbo Ski area loop)
Expo
Race Day
Recovery
What to bring
Mandatory gear as specified on Mandatory Gear page
What you get
Finisher medal
Finisher t-shirt
Chip timing
Race photos
Race pack with bib number and timing chip
Drop bag service
Event mobile app
Athlete t-shirt
Tote bag
Finisher towel
Awards and prizes for top finishers
On-course photography
On the day
Toilets
Bag drop
Food vendors
Merchandise
Marshals on course
First aid on course
Before you enter
Other questions
28 hours.
No, pacers are not allowed for athletes in the 100k distance.
Support crews are allowed to assist runners at all Checkpoints marked as supported, and may only assist within 500m either side of the checkpoints.
Support crews can access Eagles Nest via the Kosciuszko Express Chairlift. Lift passes can be booked online.
The Kosci100 is a UTMB Worlds Series 100K Event. Finishers receive 3 running stones.
Entry fee
Registration isn't open yet. We'll show pricing when the organiser confirms.Perisher, Australia
Expected November 2027
Provisional date, around Nov 26More races like this one
Not open yet
