Nono Ultra Trail Ansilta - Petzl

Race completed

50 km Distance

1,650 m Climbing

5.0 Grit · Challenging

31.7941° S, 65.0083° W © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 33 m / km Rolling. Moderate undulations. Requires consistent effort across varying grades.

Time limit 18 hours 21:36 min/km average. Generous. Walkable throughout for most of the field. Among the most forgiving 50K cut-offs we track. Measured against 982 races of the same distance. Cut-off calculator →

Field size ~262 Large. Rarely out of sight of another runner.

DUV results for the 2025 edition (50km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, July

Daytime high 14°C

Night low 0°C

Rainfall Dry — rain unlikely

Daylight 10 h 11 m of light

Regional 2001-2020 average for July — NASA POWER, grid elevation 1152 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

Gear for this race

Chosen for 50 km of trail with 1,650 m of ascent.

Trail Running Shoes 33 m of climb per kilometre — grip and rock protection before cushioning.
Race Nutrition 50 km of self-supported fuelling between aid stations.
Hydration Vests Pole attachment and chest-strap stability on steep ground.
Trekking Poles 1,650 m of ascent to walk up.
Headlamps A 18 h limit puts you out there after dark.