Ultra Marathons
Susitna 100
About this race
A winter ultra on snowmachine trails north of Anchorage.
Before you line up
Race-day planning
Susitna 100 is held on Saturday, February 13, 2027 in Big Lake, AK. The start time is to be confirmed by the organizer. Registration is currently open — use the official registration link above to enter directly with the organizer.
Always confirm the date, start time, entry fee and course details on the official event site before you travel or register, as race information can change after a listing is published. For discipline-specific guidance on what to expect and how to prepare, see the Ultra Marathons sector guide.
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