Mountain Bike
Marji Gesick 100
About this race
Notoriously brutal Upper Peninsula singletrack with a sub-50% finish rate.
Before you line up
Race-day planning
Marji Gesick 100 is held on Friday, September 18, 2026 in Marquette, MI. 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 Mountain Bike sector guide.
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