- Gain
- 9.0k ft
- Gain / mile
- 315 ft
- High point
- 8.8k ft
technicalabove treelinesteeprockysingletrack
Editorial summary
9,000 feet of gain over 28 miles, mostly technical high-mountain terrain.
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Best matches · 14 races
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- Gain
- 23.0k ft
- Gain / mile
- 230 ft
- High point
- 5.8k ft
- Cutoff
- 34 h
mountainforestrockytechnicalsingletrack
Editorial summary
23,000+ feet of gain, remote technical sections and the notorious late Cardiac Needles.
Trail · 100K · Out-and-back
3. Gorge Waterfalls 100K
Cascade Locks, OR · Apr 17, 2027 · Dates not announced
- Gain
- 11.0k ft
- Gain / mile
- 177 ft
- Cutoff
- 17 h
rockysemi technicalsingletrackrunnabletalus
Editorial summary
Punchy climbing and rocky talus sections interrupt otherwise runnable trail and total about 11,000 feet of gain.
Trail · 100 Mile · Out-and-back
4. Leadville Trail 100
Leadville, CO · Typically August · Registration opens soon
- Gain
- 13.4k ft
- Gain / mile
- 134 ft
- High point
- 12.6k ft
- Cutoff
- 30 h
mountainhigh altitudetraildirt roadrocky
Editorial summary
The raw climbing number understates Leadville because much of the race occurs near or above 10,000 feet. Hope Pass is the headline obstacle, but altitude affects virtually every section.
- Gain
- 7.0k ft
- Gain / mile
- 225 ft
- High point
- 11.1k ft
- Cutoff
- 12 h
singletrackrocky technicalpumicealpinehigh altitude
Editorial summary
The entire race averages above 9,100 feet and combines 7,000 feet of gain with technical alpine footing.
- Gain
- 11.0k ft
- Gain / mile
- 177 ft
- Cutoff
- 15.5 h
steepsingletrackexposed ridgescoastalforest
Editorial summary
Steep climbs, exposed ridges, changing coastal weather and tight intermediate cutoffs.
- Gain
- 11.7k ft
- Gain / mile
- 117 ft
- Cutoff
- 30 h
singletrackrockytechnical sectionsforestmountain
Editorial summary
Moderate climbing for a mountain 100, but rocky technical sections and overnight running add difficulty.
Trail · Trail marathon · Out-and-back
8. Pikes Peak Marathon
Manitou Springs, CO · Typically September
- Gain
- 7.8k ft
- Gain / mile
- 298 ft
- High point
- 14.1k ft
mountainalpinerockysingletrackabove treeline
Editorial summary
A 7,800-foot climb at roughly 11% average uphill grade followed by a technical high-altitude descent.
- Gain
- 20.0k ft
- Gain / mile
- 200 ft
- High point
- 10.3k ft
- Cutoff
- 36 h
mountainalpinerockyrunnable sectionstechnical sections
Editorial summary
Large cumulative climbing is compounded by prolonged running at high elevation. The trail is not uniformly technical, but altitude, long climbs, and potentially severe mountain weather substantially increase difficulty.
- Gain
- 11.3k ft
- Gain / mile
- 364 ft
steepmountainrockytechnicalhigh altitude
Editorial summary
Roughly 3,450 m of climbing over 50K creates exceptional vertical density.
- Gain
- 20.3k ft
- Gain / mile
- 203 ft
- High point
- 8.9k ft
mountainforestrocky descentssingletrack
Editorial summary
More than 20,000 feet of climbing and varied descents at sustained mountain altitude.
- Gain
- 8.0k ft
- Gain / mile
- 80 ft
- Cutoff
- 30 h
rollingmulti use trailrunnableforest
Editorial summary
Runnable terrain shifts the challenge toward cumulative fatigue and disciplined pacing.
- Gain
- 24.0k ft
- Gain / mile
- 240 ft
- Cutoff
- 36 h
mountainscreerockyalpinetechnical
Editorial summary
About 24,000 feet of climbing plus technical mountain terrain and major day-to-night weather swings.
Trail · 100 Mile · Point-to-point
14. Western States 100
Auburn, CA · Jun 26, 2027 · Registration opens soon
- Gain
- 18.0k ft
- Gain / mile
- 180 ft
- High point
- 8.8k ft
- Cutoff
- 30 h
mountainalpinerockyforestcanyon
Editorial summary
Western States combines an aggressive opening climb and alpine running with long descending and often severe canyon heat. The roughly 23,000 feet of descent creates substantial cumulative quad damage.