Lakes Sky Ultra is a 56km ultra marathon in Ambleside, United Kingdom. Distance: 56km. Elevation: 3,600m D+. Difficulty: challenging (Challenge Rating 63/100). DNF rate: 22%. Time limit: 15h. Surface: off-trail. Established 2015.
Lakes Sky Ultra
Ambleside, Cumbria, United Kingdom
"56km of skyrunning in the Lake District. Knife-edge ridges, rock scrambles, and England's most technical mountain ultra."
Score Breakdown
Based on distance, vertical gain per km, terrain difficulty, weather extremes, historical DNF rate, and race format.
England's only skyrunning ultra — exposed scrambling, knife-edge ridges, and technical mountain terrain in the Lake District.
The Course
A skyrunning event in the English Lake District with exposed scrambling, knife-edge ridges, and steep mountain terrain. Sections involve hands-on rock scrambling at Grade 1. Not a typical trail race — this is mountain running at its most technical in England.
mountainous
loop
3
950m
Runner Experience
Standard aid station support with food, drinks, and basic medical assistance at regular intervals.
Mountain village finish with local food, drinks, and a relaxed post-race atmosphere. The setting rewards the effort.
Experience ratings are based on runner reports, race reviews, community feedback, and editorial assessment. Scenery reflects the visual quality of the course. Organization covers aid stations, logistics, and communication. Community measures the atmosphere, inclusivity, and camaraderie among runners.
Race Day Weather
14°C
8° – 20°
75%
50%
Lake District summer — cool and often wet. Cloud on the ridges is common. Wind on exposed sections.
Stats & Records
2015
120
10:00:00
18%
Entry
£95
January
days
Lore & Trivia
The Lakes Sky Ultra is a skyrunning event in the English Lake District — technical mountain racing on exposed ridges where scrambling (using hands as well as feet) is required. The course follows ridgelines that Wainwright walkers know intimately but at a pace and commitment level that transforms familiar fells into genuinely challenging mountain terrain. When conditions deteriorate — and in the Lakes, they always can — the exposed ridges become serious mountaineering territory.
- ▸ Some sections involve actual rock scrambling — hands on rock, Grade 1 terrain.
- ▸ The course traverses some of the Lake District's most iconic ridgelines including Helvellyn's Striding Edge.
- ▸ This is one of the few UK races that requires demonstrated scrambling ability for entry.
- ▸ The Lake District's combination of short but steep mountains creates a uniquely intense race.
- ▸ Established in 2015.
Skyrunning in the Lake District — exposed ridges, scrambling, and the constant threat of English weather turning Alpine.
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Frequently Asked Questions
How long is Lakes Sky Ultra? +
Lakes Sky Ultra is a 56km (56km) ultra marathon with 3,600m of elevation gain. The course is loop on off-trail terrain.
How hard is Lakes Sky Ultra? +
Lakes Sky Ultra is rated challenging with a Challenge Rating of 63/100 (Demanding). The DNF rate is 22%. Runners have 15 hours to finish.
How do I enter Lakes Sky Ultra? +
Must demonstrate mountain scrambling competence and trail ultra experience.. Entry costs £95. with a maximum of 170 starters.
What is the weather like at Lakes Sky Ultra? +
Average temperature is 14°C (range 8°C to 20°C) with 75% humidity and a 50% chance of rain. Lake District summer — cool and often wet. Cloud on the ridges is common. Wind on exposed sections.
Are crew and pacers allowed at Lakes Sky Ultra? +
No crew access is permitted. Pacers are not allowed. Mandatory gear is required.
What is the average finish time for Lakes Sky Ultra? +
The average finish time is 10:00:00. About 120 runners finish each year. The DNF rate is 22%.
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