Steamboat Springs, Colorado, United States · Friday, September 17, 2027

100 mi

Run Rabbit Run

314 days away

163 km Distance

6,100 m Climbing

10.0 Grit · Elite / extreme

40.4850° N, 106.8317° W© OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 37 m / km Rolling. Moderate undulations. Requires consistent effort across varying grades.

Time limit 36 hours 13:15 min/km average. Generous. Walkable throughout for most of the field. About average for a 100 mi. Measured against 46 races of the same distance. Cut-off calculator →

Typical conditions, September

Daytime high 19°C

Night low 3°C

Rainfall Mostly dry

Daylight 12 h 26 m of light

Regional 2001-2020 average for September — NASA POWER, grid elevation 2595 m. Not a forecast.

The Aid Station

Course-specific beta from the community

⛰️ terrain

This is a rolling course. Expect fast, runnable sections where rhythm is key.

By UltraHub Expert

👟 gear

With mountain terrain, choose a shoe with aggressive lugs (5mm+) for optimal performance.

By UltraHub Expert

🥤 nutrition

For 100km+ efforts, prioritize real food at aid stations to prevent palate fatigue.

By UltraHub Expert

Gear for this race

Chosen for 163 km of mountain with 6,100 m of ascent.

Trail Running Shoes37 m of climb per kilometre — grip and rock protection before cushioning.
Race NutritionPast 163 km the palate quits before the legs do — carry more than one flavour.
Hydration VestsPole attachment and chest-strap stability on steep ground.
Trekking Poles6,100 m of ascent to walk up.
HeadlampsA 36 h limit puts you out there after dark.

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