The Bear 100 takes place in northern Utah, starting in Logan and finishing on the shores of Bear Lake. The route is a point-to-point mountain course linking ridgelines, high forest and long stretches at elevation. The organization highlights the late-September timing specifically for fall color, when the slopes across the range turn yellow and red.
The Bear 100
The Bear 100 is a 161 km ultra with 6,194 m of climbing, run point to point from Logan, Utah, to Bear Lake. The race is held in late September, timed for peak fall color in the mountains.
Prepare for The Bear 100 in
A plan built from your answers and your race date.
The formats
One format only.
| Format | Distance | Vertical gain |
|---|---|---|
| 100 Mile | 100 mi | 6,194 m |
Organizer information, checked on September 21, 2026 · bear100.com
When to start
At this distance, a build usually runs 12 to 24 weeks. The 2027 date is not published, so counting back from September puts the start around March 29, 2027.
These ranges are working conventions, not a research finding — no trial has compared plan lengths against each other. What matters more is that the plan was built for the weeks you actually have, rather than shrunk down from a longer one.
When to start
March 29, 2027
→ June 21, 2027
Worth reading before you enter
Races and distances
Trail distances: what changes off the road
Distance stops being the useful number. What decides a trail race is how long you are out, how much you climb, and how much the descents have wrecked your legs by the end.
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Training
Eating and drinking: what’s proven, what isn’t
This is where confident advice most often runs ahead of the evidence. Some of it is well tested. Some is opinion wearing a number. And one common habit can kill you.
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Races and distances
When to start preparing your race
Most plans fail before the first session, because the block started too late and everything had to be squeezed. Counting back from the date is the dullest and most useful thing you will do.
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Questions
What is the date of The Bear 100 in 2027?
The organizer has not published the 2027 date for The Bear 100 yet. The race is usually held in September, in Logan.
Is The Bear 100 course hard?
Yes: 161 km with 6,194 m of climbing, point to point from Logan to Bear Lake, with long ascents and sustained elevation. Cold late-September nights add another layer of difficulty.
Other races
This list keeps growing; it draws no line. A race that is missing is prepared for in exactly the same way.
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Its five-loop, 20-mile-per-lap format carries a famously high drop-out rate.
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HOKA Bandera Endurance Trail Race
January
The HOKA Bandera Endurance Trail Race is a trail and ultra weekend held in Bandera, Texas, inside the Hil
Moab · United StatesUltra
Moab 240 Endurance Run
January
7 km ultramarathon with 9,620 m of vertical gain, run as one continuous loop out of Moab, Utah. It is par
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