The UK's premier technical mountain running series — steep, technical and spectacular. Races across England, Wales, Scotland and Ireland with Lake District events at their heart.
Brennan is a former UK Skyrunning Champion with extensive experience across the Skyrunning UK series. His technical fell running background makes him ideally placed to coach athletes targeting these demanding mountain races.
Skyrunning is mountain running at its most pure — technical, steep and spectacular. Races are characterised by sustained gradients, technical terrain (including scrambling), significant elevation gain and loss, and routes that explore the most demanding mountain environments in the UK. These are not trail races — they are proper mountain races requiring genuine alpine skills.
38km · 2,800m+ · Great Langdale, Lake District. June 2026. Summits Scafell Pike — highest in England.
Lake District63km · 4,400m+ · New ultra distance. A technical grand tour of the Central and Southern Lakes.
Lake District29km · St Sunday Crag & Eastern Fells, Patterdale. July 18 2026.
Lake District38km · 3,300m+ · Includes Tryfan North Ridge & Crib Goch Grade 1 scrambles. Wales.
WalesIntro to Skyrunning through technical Snowdon massif trails and Y Lliwedd ridge. Wales.
Wales35km · 2,700m+ · The classic Northern Ireland Skyrunning race. An iconic mountain route.
Northern IrelandSkyrunning races often include scrambling, steep scree and exposed ridges. Build technical mountain running skills before entering. These are not beginner events.
The gradient demands of Skyrunning are extreme. Include regular hill reps, steep ascent training and — critically — technical descent training on rocky, uneven terrain.
Most Skyrunning races are on unmarked or partially marked routes. Know the course before race day — especially the technical sections, scrambles and key navigation points.
Skyrunning races carry strict mandatory kit requirements. Practice racing with full kit weight, including waterproofs, emergency gear and nutrition for the full race duration.
Skyrunning is a global sport with a specific technical definition: races must meet minimum standards of altitude and gradient to qualify. The UK series brings three distinct disciplines to British mountain terrain — each rewarding different qualities in a runner.
A SkyRace must have at least 2,000m of ascent per 23km of distance and include technically demanding mountain terrain. This is not a trail race with hills — it's a mountain race where route-finding, sure-footedness and comfort with exposure are as important as running fitness. UK SkyRaces include some of the most technically demanding courses in Britain.
The SkyUltra extends the SkyRace concept over longer distances while maintaining the technical mountain character. These races combine ultra-distance demands with mountain technical requirements — a more demanding combination than most ultras and most mountain races individually. Experience in both disciplines is strongly recommended before entering.
The Vertical Kilometre (VK) is pure ascent: 1,000m of climbing in less than 5km of horizontal distance. It is the most intense and specialist of the three disciplines — essentially a hill sprint at mountain scale. Elite VK runners are a specific breed: explosive, light and comfortable with extreme gradients. The Ben Nevis Race takes the form of a classic VK-style race in British tradition.
Fell runners with strong climbing and technical descending ability suit SkyRace. Experienced mountain ultra runners suit SkyUltra. Runners with explosive hill speed and no fear of steep terrain suit VK. Most runners entering the series for the first time should start with a SkyRace before progressing to SkyUltra distances or VK specialisation.
The UK Skyrunning Series visits different mountain environments across Britain, each with its own distinct character and demands. Racing across several events in a season builds rounded mountain running skills and a genuine feel for the sport.
The Ring of Steall in Glen Coe is the iconic UK Skyrunning race — a 29km loop around the Mamores ridge with 2,500m of ascent, serious ridge running with exposure, and a river crossing at the finish. The Devil's Ridge section requires hands-on scrambling and comfort with serious mountain exposure. This is the race that defines UK Skyrunning.
Centred on Snowdon, the Snowdon SkyRace offers volcanic rock, exposed ridgelines and the technical Snowdonian terrain familiar from UTS. The course varies year to year but consistently features the demanding steep rock and loose paths that make Snowdonia such a distinctive mountain environment.
The Lake District's contribution to the series visits Scafell Pike and the surrounding fells in a race that is genuinely extreme by any standard. Loose rock, technical ridges, and the brutal character of the Scafell massif combine to create one of the hardest courses in the series. Not a race for first-time mountain runners.
The Ben Nevis Race is one of Britain's oldest hill races and counts within the Skyrunning series as a VK-style event. The race climbs from Fort William to the summit of Britain's highest mountain and back — 4,400ft of ascent in under 10 miles. The descent from the Ben is notoriously technical and fast.
Skyrunning is explicitly a technical discipline. The minimum requirements go beyond fitness into mountain competence, gear selection, and specific movement skills. Runners new to the sport underestimate these requirements at their peril.
The ability to move quickly and confidently on loose, steep and exposed terrain is the non-negotiable prerequisite for Skyrunning. This is a skill built through years of fell and mountain running — not through flat trail race volume. If exposure or loose rock makes you hesitate, build more mountain running experience before entering the series.
Skyrunning requires aggressive grip footwear — fell shoes or mountain-specific trail shoes with deep lugs and a firm midsole. Maximally cushioned shoes with soft compound outsoles are genuinely dangerous on wet Scottish or Welsh mountain terrain. Inov-8 X-Talon, Scarpa Spin Infinity, and similar mountain-specific shoes are the right tool.
Trekking poles are mandatory or strongly recommended in most UK Skyrunning events, particularly on SkyUltra distances. Practice running efficiently with poles before race day — using them badly costs energy rather than saving it. The technique for climbing with poles is specific and worth dedicating training time to.
Elite Skyrunners climb at 1,000m per hour or above. For age-group and club runners, building to 600-700m per hour sustained climbing is a realistic and relevant target. This requires specific training — sustained uphill efforts, weighted carries, and the particular muscular endurance of continuous steep ascent.
Skyrunning rewards background and experience over pure fitness. The safest and most enjoyable path into the sport builds skills progressively through fell running before stepping into the technical demands of the series.
Brennan's Coach Note: Skyrunning is the purest expression of mountain running as a sport. The Ring of Steall is the race I point runners towards when they ask what the ceiling of British mountain racing looks like. But it demands respect — start with less exposed courses, build your confidence on technical terrain, and progress when your skills are ready, not just your ambition.
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