Aratoca, Santander, Colombia · Sunday, July 19, 2026
Fixed Distance Marathon
Chicamocha Canyon 45 Km Race
Race completed
45 km Distance
2,338 m Climbing
5.8 Grit · Challenging
What the course asks
Climbing rate 52 m / km
Mountain. Significant climbing. Steep sections will require power hiking.
Time limit 13 hours
17:20 min/km average. Generous. Walkable throughout for most of the field. More forgiving than 88% of Marathon races. Measured against 42 races of the same distance. Cut-off calculator →
Field size ~264 Large. Rarely out of sight of another runner.
DUV results for the 2025 edition (45km) — 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 25°C
Night low 14°C
Rainfall Showers likely
Daylight 12 h 28 m of light
Regional 2001-2020 average for July — NASA POWER, grid elevation 1739 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 45 km of trail with 2,338 m of ascent.
- Trail Running Shoes 52 m of climb per kilometre — grip and rock protection before cushioning.
- Race Nutrition 45 km of self-supported fuelling between aid stations.
- Hydration Vests Pole attachment and chest-strap stability on steep ground.
- Trekking Poles 2,338 m of ascent to walk up.
- Headlamps A 13 h limit puts you out there after dark.
Course Notes
La prueba a de trail running más larga y exigente de Colombia. In Colombia there is the largest Canyon of South America.
Similar races
Other Marathon trail ultras, closest in distance first.