Arrowhead 135 mile Winter Ultramarathon
External Event
Distance
6.2 mi
Pace
Elite
Terrain
Snow/Ice
Difficulty
Extreme
About this run
The Arrowhead 135 mile Winter Ultramarathon is a challenging endurance event set in International Falls, United States. This extreme winter race tests participants' physical and mental fortitude against the elements. Scheduled for January 25, 2027, the event demands significant preparation and self-sufficiency from all competitors. The 135-mile distance makes this a serious undertaking for experienced ultra-runners. Participants should be prepared for harsh winter conditions typical of northern Minnesota in January. Success in this event relies on careful planning, appropriate gear, and a deep understanding of winter survival and racing techniques.
Who it's for
This event is exclusively for highly experienced ultra-endurance athletes who are comfortable with extreme winter conditions and possess the skills to manage a 135-mile race in potentially severe weather.
What to expect
- Arrive well in advance of the 6:00 AM UTC start time to allow for final preparations and acclimatization.
- Be prepared for extremely cold temperatures, snow, and wind. Appropriate winter gear, including layers, insulation, and protection for extremities, is essential.
- The course is a point-to-point ultra-marathon. Familiarize yourself with the general route and any known aid station locations.
- Carry all necessary nutrition and hydration, as resupply points may be limited and conditions could affect their accessibility.
- This is a self-supported or semi-supported race. Understand the rules regarding outside assistance and mandatory gear.
Good to know
- The race starts on January 25, 2027.
- Packet pickup details and other specific race information should be confirmed on the official registration page.
- Given the extreme nature of the event, participants should have extensive experience in winter camping and survival.
Typical conditions
For events around January 2027 in International Falls, United States: Typical mid-winter / cooler season in this region — dress in layers and check the official page for weather-related changes.
How to prepare
A 10K benefits from a mix of easy mileage and one quality workout weekly. Build toward a long run of about 8–12 km in the weeks before the event, and keep taper light.
Find more short races near youGetting there
This event is listed in International Falls, United States. Confirm the exact start venue, parking, and transit options on the official registration page.
Frequently asked questions
What is the distance of the Arrowhead Ultramarathon?+
The Arrowhead Ultramarathon is 135 miles.
Where is the Arrowhead Ultramarathon held?+
The event takes place in International Falls, United States.
When is the Arrowhead Ultramarathon?+
The race is scheduled for January 25, 2027.
How do I register for the Arrowhead Ultramarathon?+
Registration details can be found on the official registration page: https://ultrasignup.com/register.aspx?did=142695
What kind of conditions should I expect?+
Expect extreme winter conditions, including cold temperatures, snow, and wind. Proper gear and preparation are crucial.
Is this race suitable for beginners?+
No, this 135-mile winter ultramarathon is an extreme event designed for highly experienced ultra-endurance athletes.
Where can I find more specific race information?+
For detailed information on the course, rules, mandatory gear, and logistics, please check the official registration page.
Registration is handled by the official event organizer
Know a local group? Host a community run in International Falls


