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 1302 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.

St Martha's 10km is a scenic guided trail run set in the beautiful Surrey Hills, starting near Guildford. Participants will experience a rewarding climb up St Martha's Hill, offering panoramic views from the hilltop church, before continuing to Newlands Corner and descending through the picturesque ..

The Widdop Fell Race is a classic high moorland running event organized by the Calder Valley Fell Runners. Covering a distance of 7 miles (11.3 km) with an elevation gain of 1200 feet (366 m), the race features a marked route that includes varied terrain, such as tussocks and bracken. Participants m..

The Seat Sandal fell race, organized by Ambleside AC, takes place in Grasmere, Cumbria. This challenging event covers a distance of 7.4 km with a significant climb of 700 meters, attracting runners with its tough terrain and stunning views. Participants must be at least 18 years old and are required..

The Wheelbirks Summer 10k is an exciting trail race set to take place at Wheelbirks Farm in Northumberland. This inaugural event features a diverse course that includes farm field boundaries, forest trails, and challenging climbs and descents, making it suitable for both novice and experienced runne..

The Slawit-Rock up N' Run - Summer Evening Series is a delightful running event held in the village of Slaithwaite, offering both 5k and 10k distances. Participants can enjoy a scenic out-and-back course while experiencing a vibrant community atmosphere. The event features a BBQ, beer, and chocolate..

The Brecons Trail, Fell Running and Yoga Camp offers an immersive weekend experience in the stunning Bannau Brycheiniog National Park. Participants can enjoy guided runs ranging from 10 to 15 miles, complemented by morning yoga sessions tailored for runners. This camp is ideal for those training for..

The Hope Trail Festival is an exciting endurance running event held at Newnham Park, Plymouth, featuring 12, 24, and 36-hour race options. Participants can compete solo, in pairs, or as teams of up to eight, tackling a scenic 5-mile trail. The festival also includes a children's race, promoting fami..

The Swan Challenge is a unique trail running event held at Coombe Abbey Park, offering participants the flexibility to run as many 5k laps as they wish within a 6-hour time limit. This event caters to all abilities, allowing runners to set their own distance goals, from a casual 5k to over 50 miles...

The Summer 10K, organized by Big Bear Events, takes place at Coombe Abbey Park in Coventry. This scenic race features a course that winds through woodlands, meadows, and grassy fields, offering a mix of terrain that can vary based on weather conditions. Participants can enjoy a fun atmosphere, with ..

The Maverick X Series Cotswolds 2025 is a premier trail running event set in the stunning Cotswold Hills, starting from the historic Sudeley Castle. Celebrating its 10th year, the event offers four challenging routes: Ultra (51 km), Long (43 km), Middle (23 km), and Short (15 km), each showcasing th..

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The LT-100 + LT-50 Mile Ultras is an exciting trail running event set in the stunning landscapes of the Brecon Beacons and Black Mountains in South Wales. Participants can choose between a challenging 100-mile ultra or two separate 50-mile ultras, each offering breathtaking views and demanding terra..

The Alva Games will take place in Alva on Saturday 12 July 2025.

Race to the Stones is the UK's largest ultramarathon, taking place along the historic Ridgeway, leading participants to the ancient Avebury Standing Stones. Scheduled for July 12-13, 2025, the event offers a challenging 100km route that can be completed non-stop or over two days, with a basecamp for..

UTMB Index

The Lyke Wake Challenge is a renowned running event organized by the Quakers Running Club, covering a distance of over 40 miles from Osmotherley to Ravenscar. Participants navigate a challenging, unmarked route with seven checkpoints providing refreshments. The event operates on a handicap basis, al..

The XTERRA Snowdonia Trail Marathon Eryri is a premier trail running event set in the breathtaking landscapes of Snowdonia National Park, Wales. Participants can choose from various distances, including an ultramarathon, marathon, half marathon, and 10k, all featuring stunning views and challenging ..

UTMB Index ITRA Points

The Piece of Cake Trail Run is an exciting running event taking place on July 13, 2024, in Carding Mill Valley, Shropshire. Participants can choose from three distances: 10K, Half Marathon (13.1 miles), or Marathon (26.2 miles), all set against the stunning backdrop of the Shropshire Hills and The L..

The Forest Flyer will take place in Kennford on Saturday 12 July 2025.

The North Downs 50 Ultra Challenge is an exciting endurance event taking place on July 12, 2025, in the scenic Surrey Hills, starting from Guildford Basecamp. Participants can choose from three distances: a challenging 50 km loop, a 25 km route, or a 10 km option, all showcasing the beautiful landsc..

Snowdon24 is an ultra trail running event set at the iconic Yr Wyddfa (Snowdon), the highest mountain in Wales. Participants can challenge themselves individually or as part of a team to ascend and descend the mountain as many times as possible within a 24-hour period. The event features categories ..

UTMB Index ITRA Points

The Lakeland Trails Ultra is a premier trail running event set in the stunning Lake District, featuring multiple distances: 100k, 55k, 23k, and 14k. The 100k Ultra, known for its iconic midnight start, offers a challenging yet achievable course with breathtaking views and a total ascent of 8,500 ft...