North Bend, PA, United States · Sunday, October 4, 2026

Fixed Distance 100K

Black Forest 100k Ultra Race

18 days to go
100 km Distance
4,100 m Climbing
10.0 Grit · Elite / extreme
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43.4065° N, 124.2243° W© OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 41 m / km Mountain. Significant climbing. Steep sections will require power hiking.
Time limit 19 hours 11:24 min/km average. Generous. Walkable throughout for most of the field. More forgiving than 67% of 100K races. Measured against 208 races of the same distance. Cut-off calculator →
Field size ~47 Small. Long stretches with nobody in sight.

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, October

Daytime high 15°C
Night low 10°C
Rainfall Showers likely
Daylight 11 h 39 m of light

Regional 2001-2020 average for October — NASA POWER, grid elevation 62 m. Not a forecast.

The Aid Station

Course-specific beta from the community

⛰️ terrain

This is a mountain course. Poles are highly recommended for the sustained climbs.

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 4,100 m of ascent.

  • Trail Running Shoes41 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 Poles4,100 m of ascent to walk up.
  • HeadlampsA 19 h limit puts you out there after dark.

Asics

Trabuco Max 3

★★★★★ 4.6

Adidas

Terrex Agravic Speed Ultra

★★★★★ 4.5

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

The entire 65 mile course traverses remote wilderness in the Sproul and Tiadaghton State Forests with the largest civilization crossing at Slate Run - a remote community that's so small that it doesn't even have a population census (though 50 sounds

Similar races

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