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MULTIDAYRUNNING
🏁 Fixed-Distance

The Bear 100 Mile Endurance Run

A 100-mile point-to-point mountain crossing from Logan, Utah, to Bear Lake in Idaho, with a 36-hour cutoff and elevations up to about 9,200 ft.

Official WebsiteBack to Events

Event dates, entry rules, qualification standards, and course details can change. Always verify current information on the official event website before registering or booking travel.

Event Overview

Listed edition overview
DateSep 25-26, 2026
Location🇺🇸 Logan, Utah to Fish Haven, Idaho, USA
FormatFixed-Distance
TerrainMountain
RegionNorth America
Distance100 mi
State / areaUtah and Idaho (UT, ID)
Course modelPoint-to-point
Edition noteThe lottery and waitlist were closed at the August 10 directory review.
Cutoff36 hours
HighlightsUtah-to-Idaho Crossing, Bear Lake Finish

Course & Terrain

Point-to-point route from Logan to Fish Haven using mostly singletrack and dirt doubletrack with very limited pavement.

Key course features to know before comparing this race:

  • Logan start and Bear Lake finish
  • Mountain elevations from approximately 5,000 to 9,200 ft

The official course mix is predominantly singletrack with sustained mountain climbing, descending, and exposed fall conditions.

Entry & Logistics

Listed qualification and support details
Registration and feesCheck the official event website for current availability, deadlines, prices, taxes, and refund terms.
Logistics noteA cross-state point-to-point finish requires transport planning in addition to current crew, pacer, aid, and cutoff research.

Why This Race Matters

The Bear 100 Mile Endurance Run is a useful reference point for runners comparing long fixed-distance ultras that still unfold over multiple days. Its format, terrain, and support model shape the kind of preparation required: not just fitness, but pacing discipline, nutrition planning, foot care, and the ability to make good decisions under fatigue.

Planning Notes

  • Prepare for sleep decisions, weather swings, and aid-station discipline. The distance is only one part of a multi-day fixed-distance race.
  • Treat intermediate cutoff gates as part of the course. Build enough margin for aid stops and late-race slowdown, and verify every current gate in the official rules.
  • Train for terrain-specific fatigue. Technical trails and mountain courses demand downhill durability, hiking efficiency, and reliable night lighting.
  • The directory does not mark this as having simpler logistics. Confirm qualification, terrain, support, registration, medical, and withdrawal requirements before planning around it.
  • Start and finish are in different states
  • Fall mountain weather can change quickly

Event FAQs

Where does the Bear 100 finish?

The point-to-point race finishes at Fish Haven near Bear Lake in Idaho after starting in Logan, Utah.

What is the Bear 100 cutoff?

The official race information lists a 36-hour time limit.

Verification & Sources

Verification scope: the listed edition's date, location, format, and available logistics were checked against the event-specific official sources below during the directory review dated August 10, 2026. Organizers can revise details after review.

  1. Official Bear 100 information — https://bear100.com/information/
  2. Official Bear 100 rules — https://bear100.com/rules/
  3. Multiday Running event directory review scope: August 10, 2026.