Race. Train. Gear up.
Saturday, October 10, 2026 Johnston City, IL, USA
Timed 50k

Arrowhead 12 Hour Endurance Run (night)

120 days away
50km Distance
2.5 Grit Score
Entry Level Level
Vertical Intensity 0 D+/km
Flat Hilly Mtn

This course is relatively flat and fast. Ideal for PB attempts.

The Aid Station

Course-specific beta from the community

⛰️ terrain

This is a fast & flat 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

Course Intelligence

OPENFREE MAP (LIBRE)

Course Notes

The race will be held on a 2 mile crushed gravel loop. It is a gently rolling loop that goes around beautiful Lake Arrowhead. The course is partially shaded. There will be one awesomely stocked aid station at the start/finish.