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 1314 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.

Tackle the Hebden Fell Race on Monday 31 August 2026 at Powder House Field for a sharp 1.5 mile challenge with roughly 400 feet of climb. Expect a steep ascent, topside running and a testing uphill finish through walls and streams.

September 2026

Tackle moorland climbs and sweeping views in the Eyam Fell Race, a scenic 10 km from the village on 1 September 2026. Finish with a friendly village vibe, post race BBQ and bar, and a fun 3 km junior race for younger runners.

The Muker Show Fell Race will take place in Muker on Wednesday 2 September 2026.

Enjoy a sunset trail run through Ickworth Park's limestone paths, woodlands and meadows with chip timing and a finisher medal. Choose 5k or 10k, bring a torch and grippy shoes for this atmospheric evening race.

Explore the wild Ynys Môn coastline with the Ring O' Fire series, from the coastal ultramarathon Ring O' Fire 130 to the shorter Firelighter 50. Entries for 2026 open 1 October.

Event overview Heights Ultra Trail is a charity running festival based at Colne Valley High School, Gillroyd Lane, Linthwaite, Huddersfield HD7 5SP. The event offers four marked races: 50 Mile 50 KM 27 KM 10 KM The event raises funds for..

Take on Glenmore 24, a scenic trail challenge around Loch Morlich with 12 hour and 24 hour looped options on forest trails. Expect rolling climbs, lakeside views and a friendly festival atmosphere with limited places available.

The The Maverick Kielder Forest Gravel Trail Running Event will take place in Hexham on Saturday 5 September 2026.

Tackle the stunning South Downs Way from Eastbourne to Arundel at the South Coast Ultra Challenge, with distances from 25 km up to 100 km and single or two day formats. Expect coastal views, supportive aid stations, camping and categories f..

Take on the Yr Wyddfa Snowdon Ultra 100, an epic mountain ultramarathon of around 100 miles starting and finishing in Betws y Coed. Rugged trails, strict kit rules, live GPS tracking and buckle awards await in scenic Snowdonia.

Take on the Bullock Smithy Hike, a challenging 56 mile circular hike or ultra run around Hazel Grove 5 to 6 September 2026. Join fellow walkers and runners for the first full weekend in September as the event counts down to its 50th year.

Its Grim Up North Running presents Hip Hip Hooray it's Hornsea, a seaside trail event in Hornsea, East Yorkshire along the Trans Pennine Trail. The race offers multiple distances—5k, 10k, 10-mile, 20-mile, half marathon, and marathon (two h..

Take on the Joust Races 2026, a friendly 24 hour multi lap running challenge at Top Barn Camping with a well marked, mostly flat loop and a lively campsite atmosphere. Enter solo or with a team for a memorable endurance weekend.

Explore the Jurassic Coast on a guided, non competitive 30 mile trail run starting and finishing at Studland Bay. The route visits Corfe Castle, Old Harry Rocks and Kimmeridge Bay and suits runners with long run training.

Join the Kinder Barrel Race in Edale for a fun fell race day with teams carrying a barrel across the moors, plus an individual Pint and a kids Half Pint. Family friendly with stalls, drinks and all profits going to local schools.

Take on the Yr Wyddfa Snowdon Ultra 50, a rugged 45 mile mountain ultramarathon across epic Snowdonia scenery to the Snowdon summit. Based in Betws y Coed on 5 September 2026, the race offers live tracking, checkpoint support and finisher m..

Dartmoor In A Day is a supported adventure across wild moorland, offering a 50 km ultra or 30 km challenge with stunning tors, valleys and coastal views. Limited spaces, book early for GPS tracking and guided support.

Run along the River Thames at Temple Island Meadows with half marathon, 10K and junior races supporting Royal Berks Charity. Enjoy mixed undulating trails, finisher medals, chip timing, free photos and a lively event village.

Run the Malham 10k on 5 September 2026, the third race in the Due North Trail Trilogy, covering scenic paths past Malham Cove and Tarn with a climb to Weets Top and a breezy descent. Enjoy a post race meal, beer and goodies.

Tackle a scenic half marathon from Malham Show Field through Malham Cove and Malham Tarn, climbing to Weets Top before a rewarding descent with sweeping views. Part of the Due North Trail Trilogy with post race food and a beer.