Ultra Running Hub Chongli, China · Saturday, July 11, 2026
Fixed Distance 50K
Columbia 50 Ultra Trail Chongli Challenge Race
Race completed
50 km Distance
2,655 m Climbing
6.5 Grit · Hardcore
What the course asks
Climbing rate 53 m / km
Mountain. Significant climbing. Steep sections will require power hiking.
Time limit 15 hours
18:00 min/km average. Generous. Walkable throughout for most of the field. Among the most forgiving 50K cut-offs we track. Measured against 1007 races of the same distance. Cut-off calculator →
Field size ~2,113 Very large. Congested start, busy aid stations.
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 27°C
Night low 14°C
Rainfall Showers likely
Daylight 14 h 57 m of light
Regional 2001-2020 average for July — NASA POWER, grid elevation 1310 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 2,655 m of ascent.
- Trail Running Shoes53 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 Poles2,655 m of ascent to walk up.
- HeadlampsA 15 h limit puts you out there after dark.
Similar races
Other 50K trail ultras, closest in distance first.