Distances and relay
The event describes half marathon, marathon, 50km, 81km, 100km and 100-mile options, plus a 24-hour relay. The current registration also offers a solo 24-hour option. Choose the exact event category recorded on your booking.
Underfoot
The course near Ultima Base Camp uses compressed snow with potential soft sections and exposed ice. The FAQ describes an out-and-back layout; the final route and checkpoint arrangements come from the race briefing.
Timing and support
A 24-hour limit may apply to the categories. Aid stations provide drinks and snacks, and the organizer describes heated support space. A published course description is not a guarantee that conditions will remain unchanged.
Your final participant instructions and approved event terms take priority. Check your dashboard for organizer updates.