Ultra Running Hub Tozeur, Tunisia · Saturday, January 23, 2027
Fixed Distance 100K
Ultra Trail Gazelles Sahara 110 km
129 days away
110 km Distance
259 m Climbing
5.9 Grit · Challenging
What the course asks
Climbing rate 2 m / km
Fast & Flat. This course is relatively flat and fast. Ideal for PB attempts.
Time limit 21 hours
11:27 min/km average. Generous. Walkable throughout for most of the field. More forgiving than 70% of 100K races. Measured against 208 races of the same distance. Cut-off calculator →
Field size ~11 Tiny. You will run alone for most of it.
DUV results for the 2026 edition (110km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.
Typical conditions, January
Daytime high 16°C
Night low 4°C
Rainfall Dry — rain unlikely
Daylight 10 h 18 m of light
Regional 2001-2020 average for January — NASA POWER, grid elevation 109 m. Not a forecast.
The Aid Station
Course-specific beta from the community
This is a fast & flat course. Expect fast, runnable sections where rhythm is key.
With trail terrain, choose a shoe with moderate cushioning for optimal performance.
For 100km+ efforts, prioritize real food at aid stations to prevent palate fatigue.
Gear for this race
Chosen for 110 km of trail with 259 m of ascent.
- Trail Running Shoes110 km of trail — cushioning that is still there in the last quarter.
- Race NutritionPast 110 km the palate quits before the legs do — carry more than one flavour.
- Hydration VestsFlask capacity for 110 km, without the bounce.
- HeadlampsA 21 h limit puts you out there after dark.
- AccessoriesChafe and blisters end more 110 km races than fitness does.
Similar races
Other 100K trail ultras, closest in distance first.