Olympic Valley, California, California, United States · Saturday, June 26, 2027

100 mi

Western States 100

231 days away

161 km Distance

5,500 m Climbing

10.0 Grit · Elite / extreme

39.1969° N, 120.2357° W© OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 34 m / km Rolling. Moderate undulations. Requires consistent effort across varying grades.

Time limit 30 hours 11:11 min/km average. Generous. Walkable throughout for most of the field. Tighter than 78% of 100 mi races. Measured against 46 races of the same distance. Cut-off calculator →

Field size ~322 Large. Rarely out of sight of another runner.

DUV results for the 2026 edition (100mi) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, June

Daytime high 23°C

Night low 8°C

Rainfall Dry — rain unlikely

Daylight 14 h 55 m of light

Regional 2001-2020 average for June — NASA POWER, grid elevation 1918 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 161 km of mountain with 5,500 m of ascent.

Trail Running Shoes34 m of climb per kilometre — grip and rock protection before cushioning.
Race NutritionPast 161 km the palate quits before the legs do — carry more than one flavour.
Hydration VestsPole attachment and chest-strap stability on steep ground.
Trekking Poles5,500 m of ascent to walk up.
HeadlampsA 30 h limit puts you out there after dark.

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