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 1321 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.

The 2 Islands Half Marathon returns in 2026 alongside the Berneray 10K. Tackle one or both races and soak up the stunning island scenery and friendly community atmosphere.

Run the Highland Fling Ultramarathon: a scenic point to point 53 mile (85 km) trail from Milngavie to Tyndrum through Loch Lomond and the Trossachs. Live chip timing, luggage transfer and a festive finish await.

Join a seven hour timed event on a scenic trail along the River Wear with glorious views of Durham Cathedral; run or walk as many laps as you like from 3 km up to ultra distances. Limited to 300 entries with a friendly festival vibe.

Run scenic lakeside and trail courses at the Nottingham Running Festival in Colwick Park on 30 Aug, with races from juniors to a four lap half marathon. Celebrate with a medal, chip timing and a lively event village supporting local hospice..

Run through Alexandra Gardens with views of Windsor Castle at the Windsor Trail Run on 30 August 2026. Choose a 10K or half marathon, enjoy chip timing, free race photos and a lively event village.

Join the Plum 10k on 30 August 2026 in Pershore, Worcestershire, hosted by Pershore Plum Plodders. Enjoy a scenic 10 km through local countryside with friendly club support and a welcoming atmosphere for runners of all abilities.

Muntjac 15 links five woodlands via hilly single track and forest paths for a scenic but testing trail run. Join fellow runners on 30 August 2026 for a memorable off road challenge.

Enjoy a scenic trail marathon and half at Woldingham School with rolling valley and North Downs views on a 13.1 mile loop. Perfect for runners who love woods, ridge paths and rewarding post race treats.

Take on the stunning North York Moors at the Hardmoors 26.2 Roseberry Trail Races in Guisborough, offering marathon, half and 10k trail options. Expect steep climbs, self navigate routes and a pure off road test of endurance and navigation.

Take on the GNR Time Turner 7 hour challenge in Durham and run as many laps as you like on a scenic riverside loop with views of the Cathedral. Walkers welcome and finishers receive themed medals, goody bags and vegan options.

Take on the Steam Challenge in Bridestowe on 30 August 2026 for a scenic out and back on an old rail line, run or walk 5.3 km laps and complete as many as you can within the event time limits. Places are limited to 70 entrants and medals aw..

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.

A short, steep fell race at the Reeth Show, taking runners across fields up to Fremington Edge and back through quarry workings to finish on the showfield. Competitive and family friendly with junior and senior categories for all ages.

September 2026

Tackle Derbyshire terrain at the Eyam Fell Race, a testing 10 km route up Sir William Hill and across Abney Moor before a steep wooded return to the village. Enjoy post race BBQ, bar and prizes from the Barrel Inn.

Muker Show Fell Race is a short, punchy outing with river crossings and a steep climb to Fremington Edge. Fast and rewarding, it serves as a lively BOFRA Senior Championship counter for runners seeking a sharp fell challenge.

Enjoy a sunset trail run through Ickworth Park's rolling woods and meadows with 5k and 10k options. Chip timed race with a finisher medal and first aid on site; bring grippy shoes and a torch for safety.

Take on the stunning coastal challenge of the Ring O' Fire Race Series on Anglesey, with the epic Ring O' Fire 130, a new relay format and the Firelighter 50. Entries are open and race services cover maps, checkpoints and bag transfer for a..

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.

Enjoy a scenic 10 km trail around Malham, passing Malham Cove and Malham Tarn, with a big climb to Weets Top and a long descent to the finish. Entries include a post race meal, a bottle of beer and event goodies for a festive finish.

Join a guided 30 mile trail along the scenic Jurassic Coast from Studland Bay to Old Harry Rocks. This non competitive ultra is led by an experienced coach and suits well trained runners ready for big climbs.