Course
A 135-mile winter ultra across remote northern Minnesota, starting from Kerry Park in International Falls in late January. Entry requires proven endurance qualifiers, and racers compete on foot, bike, or ski.
135 Mile135 mi
Key dates
- ✓Entries openedTue 1 Sep 2026
- ✓Entries closedMon 7 Sep 2026
- ★Race dayMon 25 Jan 2027
Date confirmed with the organiser · entry window checked by RunCalendar
About
The Arrowhead Ultra 135 is a challenging winter ultra-marathon that takes place in the remote wilderness of northern Minnesota. Racers face extreme cold, snow, and solitude as they push their limits across 135 miles of rugged terrain.
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Save Arrowhead Ultra 135 to your season and RunCalendar reminds you the morning entries open and before they close. Free on iPhone, no account needed.
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