Trail Running Calendar United Kingdom 2026-2027

Welcome to the most comprehensive guide to trail races in the UK for 2026-2027! Our curated list features an impressive 2384 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.

A 6-hour timed run along the flat Jubilee River in Slough on July 9, 2026. Participants complete laps of 5.24 miles, choosing their own distance. Every finisher gets a medal.

A **10 km** off-road trail run at Trifarm near Boreham on 25 June 2026, run mostly on public footpaths and bridleways. The route is anticlockwise, finishes with a lap around the lake, and offers on-site parking and on-registration water.

A 59 mile point to point ultramarathon following much of the River Severn from Shrewsbury to Worcester. The race has four checkpoints with vegan and gluten free options and enforces a minimum pace of 4.0 miles per hour.

A multi-day trail running festival at Newnham Park with a marked 5 mile loop, timed 12, 24 and 36 hour endurance options for solo, pair and team entries, plus a timed kids race, on site camping and on course support.

A 10 km summer evening trail race at Coombe Abbey Park, run over two laps through woodland and meadow with water stations, basic facilities and an option for a tree-planting token instead of a medal.

A six-hour trail event at Coombe Abbey Park where entrants run as many 3.3-mile laps as they wish within the time limit. The course mixes stone paths, meadow and woodland and offers parking, on-site facilities and optional charity support.

A multi-day Spartan obstacle event at Belvoir Castle featuring Sprint, Super and Beast races plus kids races and Hurricane Heat sessions. The Trifecta Weekend format lets racers attempt all three main distances across the same weekend.

A seven hour timed event on a looped course beside the River Thames on 10 July 2026. Runners can choose distances from 3 km up to ultra and receive medals, goody bags and on course aid.

Phoenix Fridays offers a flexible Friday run with a "rock up and go" start. Choose your distance on a flat, timed 5.3km loop along the Thames towpath. All finishers can pick from a selection of signature medals.

Hazelbury Hurrah! is a Friday evening multi terrain race near Corsham on 10 July 2026, featuring a six mile main race and a two kilometre junior race. The event supports local charities and is Trail Running Association licensed.

A multi-day gravel and trail running festival at Duncombe Park with a Friday 6 km night loop and Saturday 10 km, 20 km or 30 km routes, timed mystery segments, on-site camping and festival amenities.

A two evening 10K in Exeter on a new flat, officially measured road course with pacer trains for a range of target times. Finishers receive a medal and the event features chip timing and full course marshals.

A roughly five-mile off-road trail run at High Lodge, Thetford Forest with chipped timing and a finishers medal. Entries are non-refundable; transfers allowed until 06/07/2026, and competitors must be 16 or over.

Gyrn Gallop is a 10.6 km fell race from Rhiwlas Village near Llansilin with about 350 m of ascent on a partially marked course requiring some experience. Entry on the day is £7 and the minimum age is over 15.

A two person relay to the summit of Moel Famau and back over about 6.5 km with 350 m of climb. Night registration and a small on the night entry fee, with parking options that depend on ground conditions.

A point to point 57 mile ultra along the Severn Way from Worcester to Stonehouse, passing Upton-on-Severn, Tewkesbury and Gloucester. Four checkpoints offer vegan and gluten free options, finishers receive a bespoke medal and a head visor.

Self-navigated trail event on 11 July 2026 in the Black Mountains offering 13 to 50 mile routes with GPX tracks, checkpoints, chip timing, medical cover and mandatory kit requirements.

Trail races in Llanberis on 11 to 12 July 2026 include 10K, half, marathon and a 57 km ultra that pass Rhyd Ddu, Beddgelert, Nant Gwynant, Pen y Pass and Yr Wyddfa. The event offers an event village, on course support and chip timing.

A 24 hour UTMB indexed trail challenge on Yr Wyddfa in Llanberis where solo runners and teams of up to five record as many ascents and descents as possible. The event features chip timing, on course support, an event village and charity fun..

A 5 km adventure run with obstacles in Holme Village on the edge of the Lake District. Part of the Festival of Sport weekend, open to participants aged 12 and over with a 200 entrant limit.

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