Ambleside, United Kingdom · Saturday, July 11, 2026
Fixed Distance 100K
Lakeland Trails Ultra 100 km
Race completed
100 km Distance
3,783 m Climbing
10.0 Grit · Elite / extreme
What the course asks
Climbing rate 38 m / km
Rolling. Moderate undulations. Requires consistent effort across varying grades.
Time limit 23 hours
13:48 min/km average. Generous. Walkable throughout for most of the field. More forgiving than 83% of 100K races. Measured against 203 races of the same distance. Cut-off calculator →
Field size ~109 Mid-sized. Company early, well spread out by halfway.
DUV results for the 2024 edition (100km) — 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 17°C
Night low 12°C
Rainfall Showers likely
Daylight 16 h 54 m of light
Regional 2001-2020 average for July — NASA POWER, grid elevation 164 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.
For 100km+ efforts, prioritize real food at aid stations to prevent palate fatigue.
Gear for this race
Chosen for 100 km of trail with 3,783 m of ascent.
- Trail Running Shoes 38 m of climb per kilometre — grip and rock protection before cushioning.
- Race Nutrition Past 100 km the palate quits before the legs do — carry more than one flavour.
- Hydration Vests Pole attachment and chest-strap stability on steep ground.
- Trekking Poles 3,783 m of ascent to walk up.
- Headlamps A 23 h limit puts you out there after dark.
Similar races
Other 100K trail ultras, closest in distance first.