Course format
Canyon-to-city downhill the double (60km & 100km)
RacesReviewed / Race Intelligence
The Never Summer 100K is a true Rocky Mountain bucket-list ultra where runners face over 14,200 feet of gain at altitudes consistently above 10,000 feet, transforming what looks manageable on paper into a completely different beast. Reviewers consistently praised the breathtaking alpine scenery — from the scramble to Diamond Peak's 11,852-foot summit where a drummer greets runners, to the tundra traversal past Kelly Lake and Clear Lake — as well as the excellent organization by Gnar Runners and the hot food at night aid stations. However, the technical terrain with zero switchbacks on sustained scree-like climbs, combined with the altitude that makes every step feel like breathing through a straw, demands significant mountain running experience. While the intimate field of ~625 runners and lack of spectator support means you're largely alone in this remote wilderness, the unique wooden log ring award and incredible volunteers help create a memorable, hard-earned accomplishment.
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Course format
Canyon-to-city downhill the double (60km & 100km)
Elevation profile
0 ft net
Pressure point
Early climb
Weather bias
Tailwind-friendly
Free training plan
Keep race research first. When you want it, open a quick planner that uses the selected distance, the selected race date, and the course itself.
Course Profile
This course section is built from a lighter course overview so you can understand how the race is likely to run.
Synced course focus
Mile 1.0 · 0 ft · Course intelligence will improve as GPX and logistics data land.
This course view focuses on the best route information currently available.
Pressure points highlight where pacing or effort may change during the race.
Use the course, weather, logistics, and reviews together to build your race-day plan.
Difficulty Meter
Weather read
Route-aligned wind gives you a quick feel for how the day may race before you dig into the full weather section.
Jump to weather analysisWeather Analysis
Weather blends the live forecast with the race's historical weather patterns to help you plan.
Route-aligned wind
Interpretation
NOAA race-window forecast is not available yet, so this shows the current route anchor sample and the fallback pre-race state.
Estimated weather effect
Heuristic read
Help score
Historical profile
Based on 7 years of race-weekend weather in the archive.
Tailwind years
Headwind years
Helpful weather
Forecasts use current race-area weather, and history looks at past race-weekend conditions to show what runners have typically faced.
Weather history
Race date
Avg temperature
Avg wind
Aligned wind
Mostly neutral year
+2.40% estimated finish-time effect · 27 hourly observationsStart
Partly Cloudy
3.0 mph · NWMid-course
Partly Cloudy
5.0 mph · NWFinish
Partly Cloudy
3.0 mph · NWCourse Breakdown
Active segment
This segment is coming from the stored climb signals: about 150 ft gained at 0% grade.
Race-Day Logistics
Race weekend
The basic race structure is in place for planning.
Distance options
This page can show the event correctly even when some race-day detail is still light.
Race-day planning
Packet pickup, parking, support flow, and reunion details may still be limited.
Course Map
Map overview
This map gives you a race-area view and course orientation even when the full route is not available.
Highlighted point
Course intelligence will improve as GPX and logistics data land.
What to watch
Use this map to get your bearings before race day and understand the general shape of the course area.
Course coverage
Detailed route geometry and extra overlays may still be limited for this race.
Why it matters
Walden, CO should still be easy to plan around, even when some course details are lighter than others.
Planning
Entry posture
There is no qualification signal in the current event record.
Race framing
The page emphasizes course, logistics, and weather rather than qualification standards.
Race History
Past editions tracked
Recorded race years
ArchiveCurrent route view
The Double (60km & 100km)
CurrentBenchmarks
More historical context will be added here as the archive grows
In progressReview Radar
Course
Logistics
Crowd support
Aid stations
Finish area
Recommend
Common questions
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