Trail Running Calendar United Kingdom 2025-2026

Welcome to the most comprehensive guide to trail races in the UK for 2025-2026! Our curated list features an impressive 1569 trail runs across the enchanting landscapes of Scotland, and Wales. From the iconic trails of London's green outskirts to the rugged terrains near Birmingham, from Glasgow's scenic paths to Liverpool's historic routes, we've got every trail enthusiast covered.

Whether you're a seasoned trail runner looking for your next challenge or a newbie eager to explore the world of off-road running, our calendar is your one-stop solution. Dive deep into the details by searching for a specific location or simply browse through to discover new trail runs. Looking for all running events? Check out the complete Running Calendar United Kingdom on running.life.

Two linked fell races from Hayfield in the Peak District offer a 24.5 km, 1270 m ascent or a 15.5 km, 650 m option, both requiring navigation and mountain experience. Entries open pre and on the day, 200 places; full kit and map compulsory.

Tackle the epic 102 mile Yr Wyddfa Snowdon Ultra, a self navigation race through Snowdonia on 5 September 2026 with a 42 hour limit. Mountain experience and solid map skills are required for this tough, remote challenge.

Take on Maverick Kielder Forest Gravel on Saturday 5 September 2026 at Kielder Castle for scenic forest gravel trails with routes from 5 km to 52 km. Weekend camping, staffed feed outposts and a plastic free ethos make it a true outdoor adv..

Tackle a 45 mile mountain ultramarathon in Snowdonia, summiting Yr Wyddfa and crossing iconic peaks for spectacular but demanding terrain. Limited to 500 entrants, this scenic challenge rewards grit and mountain skill.

Tackle Dartmoor in a Day on 5 September 2026, a fully supported off road challenge across wild moorland with 50 km Ultra and 30 km Challenge options. Checkpoints, mobile marshals and a finishers memento make this a memorable day.

Join the 50th Bullock Smithy Hike in Hazel Grove on 5 to 6 September 2026. This classic circular 56 miles challenge welcomes hikers and ultra runners for a scenic, rewarding weekend.

Run a scenic half marathon in the heart of the Yorkshire Dales, winding past Malham Cove and Malham Tarn and climbing to Weets Top before a long descent with sweeping views. Part of the Due North Trail Trilogy, it pairs stunning scenery wit..

Tackle the wild Shropshire Hills at Carding Mill Valley with scenic 13.1 mile and 26.2 mile trail races through the Long Mynd. Well marked routes, aid stations and marshals make this a classic, challenging day out for trail runners.

Join the Longshaw Sheepdog Trial Fell Race on Sat 5 Sep 2026 for a scenic Peak District challenge alongside the sheepdog trials. The 7.1 km course climbs 236 m, is pre entry only and capped at about 200 runners, with trials entry included.

Celebrate the 40th Haytor Heller on Dartmoor, a challenging 6 mile off road loop from Haytor Rock. Expect steep climbs, fast descents, woodland stretches and a stream crossing for a classic moorland race.

Take on the classic Grisedale Horseshoe on Sat 5 Sep 2026 around Ullswater, a demanding 16 km fell race with 1525 m of climb through dramatic Lake District scenery. Entries are limited and pre entry is required for this iconic community cha..

Take on a classic fell and trail marathon around Caldbeck, summiting five Wainwrights including Blencathra. The 26.4 mile route climbs about 5875 ft, is fully tracked and suits experienced fell runners.

Take on the Tiree Ultramarathon on 6 Sep 2026 a scenic 35 mile coastal loop around the Isle of Tiree with a 10 hour cut off. Enjoy island views, a tech tee, medal and goodie bag or race as a two person relay.

Join the classic Burnsall Fell Race in the Yorkshire Dales for a short but fierce hill test, with a steep climb to a cairn and a thrilling edge descent. Entry on the day for seniors is £5.

Enjoy a scenic riverside run in Ross on Wye with 5K and 10K chip timed races plus a 500 m fun run for kids. Flat multi terrain routes may include grass and mud, every finisher gets a medal and prizes await top finishers.

The Exterminator is a classic 17 mile fell race organised by Totley AC that tests navigation and stamina across moorland, woods and villages. Expect steep climbs, self navigation and a friendly club atmosphere for adventurous runners.

Join the Carnival Chase in Warminster Town Park on 6 Sep 2026 for a scenic lakeside run along country lanes, tracks and trails. Choose 10K, 3K or a 1.2K family friendly wheelchair and buggy fun run while supporting Warminster Carnival.

Take on the Stretton Skyline, a scenic yet demanding 30.5 km fell race around Church Stretton with 1357 m of climb and panoramic Shropshire Hills views. Pre entry only, finishers enjoy a tasty goody bag.

Take on the Loweswater Show fell race on Sun 6 Sep 2026 in the Lake District, starting at New House Farm, Lorton. This punchy 4.2 km with 305 m of climb is open to runners 13 plus with on the day registration and free race entry; teams welc..

The Montane Dragon's Back Race will take place in Conwy from Monday 7 September 2026 to Friday 11 September 2026.

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