Ultra Running Hub Mont-Aux-Sources, South Africa · Saturday, September 12, 2026
Fixed Distance 50K
Mont-Aux-Sources 50km Ultra Trail
Race completed
50 km Distance
2,840 m Climbing
6.8 Grit · Hardcore
What the course asks
Climbing rate 57 m / km
Mountain. Significant climbing. Steep sections will require power hiking.
Time limit 10 hours
12:00 min/km average. Generous. Walkable throughout for most of the field. About average for a 50K. Measured against 1007 races of the same distance. Cut-off calculator →
Typical conditions, September
Daytime high 20°C
Night low 4°C
Rainfall Mostly dry
Daylight 11 h 48 m of light
Regional 2001-2020 average for September — NASA POWER, grid elevation 2050 m. Not a forecast.
The Aid Station
Course-specific beta from the community
This is a mountain course. Poles are highly recommended for the sustained climbs.
With trail terrain, choose a shoe with moderate cushioning for optimal performance.
Gear for this race
Chosen for 50 km of trail with 2,840 m of ascent.
- Trail Running Shoes57 m of climb per kilometre — grip and rock protection before cushioning.
- Race Nutrition50 km of self-supported fuelling between aid stations.
- Hydration VestsPole attachment and chest-strap stability on steep ground.
- Trekking Poles2,840 m of ascent to walk up.
- GPS WatchesBattery life first — a 50 km day outlasts most full-GPS modes.
Course Notes
Starting at the race village in Mahai campsite, the route takes the runners up through the Mahai valley to Witsieshoek Mountain Lodge. From there they head along technical jeep track to Sentinel car park. A mix of paved and rugged single-tracks.
Similar races
Other 50K trail ultras, closest in distance first.