San Juan, Argentina · Friday, May 22, 2026
Fixed Distance 100K
Desafio Punta Negra 100 km
Race completed
93.6 km Distance
3,450 m Climbing
9.9 Grit · Elite / extreme
What the course asks
Climbing rate 37 m / km
Rolling. Moderate undulations. Requires consistent effort across varying grades.
Time limit 20 hours
12:49 min/km average. Generous. Walkable throughout for most of the field. More forgiving than 81% of 100K races. Measured against 203 races of the same distance. Cut-off calculator →
Field size ~66 Mid-sized. Company early, well spread out by halfway.
DUV results for the 2025 edition (93.6km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.
Typical conditions, May
Daytime high 19°C
Night low 5°C
Rainfall Dry — rain unlikely
Daylight 10 h 24 m of light
Regional 2001-2020 average for May — NASA POWER, grid elevation 1342 m. Not a forecast.
The Aid Station
Course-specific beta from the community
This is a rolling course. Expect fast, runnable sections where rhythm is key.
With trail terrain, choose a shoe with moderate cushioning for optimal performance.
Gear for this race
Chosen for 94 km of trail with 3,450 m of ascent.
- Trail Running Shoes 37 m of climb per kilometre — grip and rock protection before cushioning.
- Race Nutrition 94 km of self-supported fuelling between aid stations.
- Hydration Vests Pole attachment and chest-strap stability on steep ground.
- Trekking Poles 3,450 m of ascent to walk up.
- Headlamps A 20 h limit puts you out there after dark.
Similar races
Other 100K trail ultras, closest in distance first.