Course map, elevation profile & surface
Course updated Oct 27, 2026: Course file replaced with the official counter-clockwise line. The 2027 race runs counter-clockwise, and this page had the 2026 clockwise detour. Now 98.9 mi with 32,011 ft of climbing, and the 14 aid stations from the official counter-clockwise sheet.
Fly the course
Follow the route over 3D terrain, mile by mile.
Race-day light
For a 28:05 finish (an estimate) · starting 7:00 AM Jul 9 · headlamp mi 47–77. Dark means the sun below civil twilight.
Climbs
15 climbs · 30,466 ft totalbiggest firstAid stations as published on the course file
| Aid station | Mile | km |
|---|---|---|
| A Cunningham | 9.0 | 14.5 |
| A Maggie | 14.6 | 23.4 |
| A Pole Creek | 19.9 | 32.1 |
| A Sherman | 29.2 | 46.9 |
| A Burrows | 33.0 | 53.1 |
| A Animas Forks | 42.5 | 68.4 |
| A Engineer | 49.0 | 78.8 |
| A Ouray | 56.7 | 91.2 |
| A Governor | 64.2 | 103.3 |
| A Kroger's | 67.4 | 108.5 |
| A Telluride | 71.8 | 115.6 |
| A Chapman | 80.7 | 129.9 |
| A KT | 87.7 | 141.1 |
| A Putnam | 93.2 | 150.0 |
Badge colours match the markers on the map above — always confirm locations and cutoffs with the race organizer.
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Conditions typical race-day weather for Jul 9 at the start
Typical = the median of 2016–2025 for Jul 9 ±3 days at the start line; a wet day has 1 mm of rain or more. Historical weather from Open-Meteo.
Race almanac the sky on race day
Next race day Fri, Jul 9, 2027 · 7:00 AM start
First and last light are civil twilight, the sun 6° below the horizon. The moon is lit as at midnight after the start; headlamp hours count a typical finish from the start while the sun is below civil twilight. Worked out for the start line.
What changed in the last year
- Oct 27, 2026Course file replaced with the official counter-clockwise line. The 2027 race runs counter-clockwise, and this page had the 2026 clockwise detour. Now 98.9 mi with 32,011 ft of climbing, and the 14 aid stations from the official counter-clockwise sheet.
Reviews what runners who have been there say
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About this course
Hardrock 100 Endurance Run 100 Miler — 2027 covers 98.9 mi (159.2 km) with 32,011 ft of elevation gain. That is about 324 ft per mile of climbing, and 32,005 ft of descent. The course tops out at 13,911 ft and bottoms out at 7,700 ft. The surface is 71% trail and 29% gravel. There are 14 aid stations on course; the longest stretch between aid is 9.5 mi. The profile has 15 sustained climbs; the biggest is the climb to Kroger's, +5,344 ft over 10.8 mi at 9.4% on average (steepest stretch 52%). Race day is July 9, 2027, starting at 7:00 AM; the sun rises at 5:57 AM and sets at 8:36 PM. Typical race-day weather at the start: a high of 71°F and a low of 43°F, with a 37% chance of a wet day. The interactive map above shows the full route with its elevation profile and aid stations, built from the course's GPS file.
Load the course in the TrailGoat Run Planner for grade-adjusted pacing, climb-by-climb splits, hourly weather and a full hydration & fueling plan — free, no account needed.
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Course history
- Oct 27, 2026Aid stations updated by TrailGoatCunningham added at mi 9.0 · Maggie added at mi 14.6 · Pole Creek added at mi 19.9 · Sherman added at mi 29.2 · 10 more
- Oct 27, 2026Course file replaced by TrailGoat+0.2 mi · gain +3,151 ft
- Sep 10, 2026Added to the catalog
Races like this one close in distance, climbing, terrain, altitude, weather and season
- Hardrock 100 Endurance Run — 2026Jul · 99 mi · 291 ft/miSame distance · Similar weather · High altitude
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- Grand Raid des Pyrénées Ultra — 2027Aug · 109 mi · 350 ft/miSame distance · High altitude · Similar weather
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