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 1363 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.

Take on trail running in Delamere Forest on Sunday 26 April 2026 with 42k and 21k options. The scenic route winds through woodland, around Blakemere Moss and along the Sandstone Trail with a climb up Old Pale Hill for a rewarding challenge.

Blindfolded and dropped at an unknown location, The Drop in Winchester challenges solo runners and teams to find their way back over 10 or 15 miles as the crow flies. No maps or GPS allowed, just navigation, grit and a taste for adventure.

Tackle the scenic Gibside 5 km or 10 km trail through gardens, woodland and open countryside on the expansive National Trust estate. Canicross friendly with live chip timing, bespoke medal and Wild Deer merchandise for all finishers.

May 2026

Saturn’s Midweek Chasing Numbers 7-Hour Time Challenge is held at Wraysbury Skiff & Punting Club on the River Thames. The event is designed to be affordable and flexible, inviting all abilities to run or walk within a 7-hour window. Partici..

Join the 2026 Heritage Run in Thorpeness on 1 May for scenic mainly off road 10k and half marathon distances, plus a dog run 10k. Organised by local volunteers, the event supports charity and has donated over £45,000 to date.

The Portland Pig Backyard Ultra is an ultramarathon event held at Grove Farm Estate, Portland, Dorset. In this unique race format, participants run a 4.167-mile (6,706 meters) loop every hour, starting on the hour, continuing until only one..

Explore the Great Glen and Loch Ness in Ultra X Scotland, a multi day trail ultramarathon based in Inverness. From short 12 km runs to bold 110 km challenges, enjoy marked routes, checkpoints, support and a celebrated finisher medal.

UTMB Index

Rasus y Bannau is a tough trail in the Brecon Beacons with marathon and ultra options up to 100K across scenic ridges. Expect marked routes, checkpoints and mountain safety on May 2 and 3 2026.

Take on the 90K Fife Pilgrim Way Ultra, a fully marked scenic route across historic Fife finishing at St Andrews Cathedral. Run through towns like Dunfermline, Markinch and Ceres for a memorable endurance pilgrimage.

Tackle stunning Shropshire hills in the May the Fourth be with you race, choosing half or full marathon over 13.1 mile laps. Entries capped at 200 with a virtual option during May 4 week. Aid stations and finisher medals provided.

Tackle the iconic Welsh 3000s on a guided mountain run through Snowdonia, visiting all 15 peaks above 3,000 feet. About 30 miles and 4,000 m of ascent in a challenging non competitive outing with qualified guides and crew.

Join the East Devon Round, a friendly trail running festival over the first May bank holiday at Offwell. Choose from challenging ultra routes or shorter trail runs, enjoy camping, communal meals, live tracking and a relaxed mini event for a..

Join a guided 30 mile trail run along the North Downs Way and Greensand Way led by an experienced ultra runner and coach in a supportive group run. Enjoy sweeping hilltop views, shoe demos and a possible alcohol free beer at the finish.

Explore the Malvern Hills Ultra from Abberley Village Hall with multiple distance options along the scenic Worcestershire Way. Enjoy sweeping views, timed support from 'Time Lords', and a bespoke finisher medal and tech shirt.

Join Run Silchester on 2 May 2026 for 2.5, 5 and 7 mile trail runs around the Roman wall, ancient woodland and a 12th century church. Family friendly festival atmosphere with stalls, music and proceeds supporting local community causes.

Experience the Isle of Wight Ultra Challenge from Chale, tracing dramatic coastal cliffs past the Needles, Cowes and Ventnor. Multiple distances, strong support and camping options welcome runners and walkers seeking a scenic big day or two..

Enjoy a three day running festival over the May Bank Holiday across three Mid Sussex towns. Run single town races or combine stages into the Mid Sussex Marathon, with undulating multi terrain routes, medals, family fun and fancy dress.

Tackle the Pennine Barrier Ultra, a 50 mile trail through the stunning Yorkshire Dales and Three Peaks around Malham. Limited to 750 runners, this supported but demanding ultramarathon rewards bold endurance and classic Pennine views.

UTMB Index

Take on the iconic Thames Path 100 from Richmond to Oxford, 100 miles of scenic riverside trails and historic towns. Enjoy waymarked routes, plenty of aid stations and a supportive ultra atmosphere for a true point to point challenge.

UTMB Index

Take on the 36 mile Esk Valley Epic from Glaisdale on 2 May 2026, a scenic circular ultra with 4,487 ft of climbing along the Esk Valley Walk. Tough trails, five checkpoints and a finishers medal reward your effort.