Course map, elevation profile & surface
Fly the course
Follow the route over 3D terrain, mile by mile.
Race-day light
For a 21:45 finish (an estimate) · starting 7:00 AM Jun 25 · headlamp mi 66–97. Dark means the sun below civil twilight.
Climbs
8 climbs · 20,381 ft totalbiggest firstConditions typical race-day weather for Jun 25 at the start
Typical = the median of 2016–2025 for Jun 25 ±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, Jun 25, 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.
Reviews what runners who have been there say
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About this course
SISU 100 100 Miler — 2027 covers 97.9 mi (157.5 km) with 22,426 ft of elevation gain. That is about 229 ft per mile of climbing, and 22,420 ft of descent. The course tops out at 4,988 ft and bottoms out at 2,429 ft. The surface is 100% trail. The profile has 8 sustained climbs; the biggest is the climb from mi 11.4, +2,552 ft over 7.0 mi at 6.9% on average (steepest stretch 26%). Race day is June 25, 2027, starting at 7:00 AM; the sun rises at 5:13 AM and sets at 9:06 PM. Typical race-day weather at the start: a high of 67°F and a low of 48°F, with a 29% 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.
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Course history
- Sep 10, 2026Added to the catalog
Races like this one close in distance, climbing, terrain, altitude, weather and season
- Trail du Saint-Jacques by UTMB Ultra 100M — 2027Jun · 85 mi · 231 ft/miSimilar climbing · Same distance · Same month
- Mountain Ultra Trail by UTMB MUT Miler by UTMB 168K — 2027May · 103 mi · 255 ft/miSame distance · Similar weather · Similar climbing
- Bighorn 100 — 2027Jun · 99 mi · 207 ft/miSame distance · Similar weather · Same month
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