Ultra Running Hub Atibaia, SP, Brazil · Saturday, May 30, 2026
Fixed Distance 50 mi
Pedra Grande Ultra Trail Challenge
Race completed
80 km Distance
2,750 m Climbing
8.1 Grit · Hardcore
What the course asks
Climbing rate 34 m / km
Rolling. Moderate undulations. Requires consistent effort across varying grades.
Time limit 12 hours
9:00 min/km average. Comfortable. Room to walk the climbs and stop at aid. Among the tightest 50 mi cut-offs we track. Measured against 455 races of the same distance. Cut-off calculator →
Field size ~58 Small. Long stretches with nobody in sight.
DUV results for the 2026 edition (55km) — 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 22°C
Night low 11°C
Rainfall Mostly dry
Daylight 10 h 50 m of light
Regional 2001-2020 average for May — NASA POWER, grid elevation 919 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 80 km of trail with 2,750 m of ascent.
- Trail Running Shoes34 m of climb per kilometre — grip and rock protection before cushioning.
- Race Nutrition80 km of self-supported fuelling between aid stations.
- Hydration VestsPole attachment and chest-strap stability on steep ground.
- Trekking Poles2,750 m of ascent to walk up.
- HeadlampsA 12 h limit puts you out there after dark.
Similar races
Other 50 mi trail ultras, closest in distance first.