🎉 New Kit List Available 🎉 - View Here

Distance

50KM

Elevation

1,730M

Start Date

Sun, 6th Jun 2027

Location

Lyme Regis, Dorset

Cut-off Time

14 Hours

Jurassic Coast 50K Ultramarathon

Welcome to 50km of prehistoric beauty and punishing elevation. The Jurassic Coast 50km Ultramarathon is the perfect entry point into coastal ultra-running, combining the prestige of the South West Coast Path with a fiercely competitive, single-day distance.

Organised by the renowned coastal trail experts at Climb South West, this 50km ultra takes you along England’s only natural UNESCO World Heritage Site. Whether you are a seasoned marathon runner looking to step up to the ultra distance or an experienced trail runner hunting for a scenic, quad-crushing challenge, this event delivers on every front.

Course

A 50km race on the coast is an entirely different beast to a flat trail ultra. The South West Coast Path is famous for its relentless "sawtooth" profile, meaning your legs will rarely find flat ground.

  • The Terrain: Expect to tackle a gruelling series of steep, lung-busting ascents up to towering chalk headlands, followed instantly by sharp descents into hidden coves. The ground underfoot shifts constantly between hard-packed dirt, grassy cliff edges, rocky staircases, and energy-sapping shingle beaches.
  • The Scenery: Your hard work is rewarded with 250 million years of geological history. The route sweeps past some of the most iconic coastal landmarks in the UK, offering panoramic views over the English Channel that will make you forget (momentarily) about your tired legs.
  • The Challenge: While 50km is a standard entry-level ultra distance, the sheer volume of climbing on this section of the coast makes it a formidable undertaking that requires dedicated hill training.

The Jurassic Coast 50K ultra is the ultimate test of coastal fitness. The 50km distance is highly accessible, making it an achievable goal for dedicated runners, but the sawtooth elevation ensures it remains a massive, respected achievement. You get the world-class views of the longer distances, the brilliant camaraderie of the ultra-running community, and the flawless organisation of a Climb South West event. For the most up-to-date event details, including registration information, please visit the official race website.

Got your mandatory kit sorted?

Browse the ultra runners' kit list for all your essential gear.

Explore ultra kit List

More 50km Ultras