Westcliffe, CO, United States · Saturday, September 26, 2026

Fixed Distance 100K

Sangre de Cristo Ultra 100 km Race

10 days to go
100 km Distance
3,000 m Climbing
9.5 Grit · Elite / extreme
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38.1347° N, 105.4658° W© OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 30 m / km Rolling. Moderate undulations. Requires consistent effort across varying grades.
Time limit 24 hours 14:24 min/km average. Generous. Walkable throughout for most of the field. More forgiving than 86% of 100K races. Measured against 208 races of the same distance. Cut-off calculator →
Field size ~11 Tiny. You will run alone for most of it.

DUV results for the 2025 edition (100km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, September

Daytime high 22°C
Night low 6°C
Rainfall Mostly dry
Daylight 12 h 03 m of light

Regional 2001-2020 average for September — NASA POWER, grid elevation 2542 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 trail terrain, choose a shoe with moderate cushioning 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 100 km of trail with 3,000 m of ascent.

  • Trail Running Shoes30 m of climb per kilometre — grip and rock protection before cushioning.
  • Race NutritionPast 100 km the palate quits before the legs do — carry more than one flavour.
  • Hydration VestsPole attachment and chest-strap stability on steep ground.
  • Trekking Poles3,000 m of ascent to walk up.
  • HeadlampsA 24 h limit puts you out there after dark.

Brooks

Catamount 3

RunRepeat found the Brooks Catamount 3 to have a cozier upper that enhances the overall fit, though breathability and durability could be better. iRunFar noted…

★★★★★ 4.5

La Sportiva

Prodigio Pro

RunRepeat found the La Sportiva Prodigio Pro to have a secure, locked-in fit due to its premium upper, and also praised the shoe's energetic ride, particularly…

$225 ★★★★★ 4.6

Tailwind

Endurance Fuel

All-in-one calorie and electrolyte drink mix. 200 calories per serving.

$25 ★★★★★ 4.8

Salomon

ADV Skin 12

Industry-standard 12L race vest with front flask pockets and minimal bounce.

$180 ★★★★★ 4.8

Komperdell

Carbon Ultralight Vario 4

4-section folding carbon poles with compact pack size for mandatory gear.

$160 ★★★★★ 4.5

Nitecore

UT32

Dual-beam trail running headlamp (1100 lumens) with spot and flood beams.

$100 ★★★★★ 4.5
All gear guides →

Course Notes

Run beneath the watchful eye of these gorgeous, and ominous, mountains. You may even think to yourself, ‘what a wonderful world’. This race is full of festivities, friends and challenge.

Similar races

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