Arches Ultra 50k is the 50.0km ultra trail at Arches Ultra 2026 (Moab, United States). The race starts on January 31, 2026.
The course climbs 880m+. With 18m/km of climbing, the course is predominantly runnable. By gradient, 19% of the distance is uphill, 17% downhill and 64% flat. Surface: 69% trail, 9% road, 7% smooth, and 5% technical. Flat-equivalent effort: 56.5 FlatKM.
Poles bring little benefit here: only about 0.4km of pole-friendly terrain.
There is too little runnable descent to damage the quads: plan the race around climbing and fuelling.
On race day, start temperatures have historically ranged from -3°C to 8°C, with around 7°C at the highest point; the chance of precipitation is about 20%.
This page has a pacing and nutrition planner, a gradient matrix, an interactive elevation profile and historical weather for Arches Ultra 50k.
Other distances of Arches Ultra 2026Arches Ultra 50 Mile (81.0km)·Arches Ultra Half Marathon (21.0km)·Arches Ultra 9k (9.0km)
