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

100 mi

Run Rabbit Run

350 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. Comfortable. Room to walk the climbs and stop at aid. About average for a 100 mi. Measured against 41 races of the same distance. Cut-off calculator →

Typical conditions, September

Daylight 12 h 26 m of light

Course notes

terrain This is a rolling course. Expect fast, runnable sections where rhythm is key.
gear With mountain terrain, choose a shoe with aggressive lugs (5mm+) for optimal performance.
nutrition For 100km+ efforts, prioritize real food at aid stations to prevent palate fatigue.

Gear for this race

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

Trail Running Shoes 37 m of climb per kilometre — grip and rock protection before cushioning.
Race Nutrition Past 163 km the palate quits before the legs do — carry more than one flavour.
Hydration Vests Pole attachment and chest-strap stability on steep ground.
Trekking Poles 6,100 m of ascent to walk up.
Headlamps A 36 h limit puts you out there after dark.