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 2306 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 fell running event at Meldon Reservoir featuring a five mile senior race climbing 1,362 ft to High Willhays and return, plus junior races over 2 km and 4 km. The course requires self navigation and includes compulsory checkpoints.

A 24 hour loop trail event in Inverkip on 16 May 2026 where runners complete as many 5.9 km laps as they wish. The weekend includes camping, live music, food vendors, chip timing and tiered finisher medals.

Trail running from Sudeley Castle across 1200 acres of Cotswold hills with routes from 7 km to 51 km, marked trails, GPX files and outposts. Longer routes require specified mandatory kit and time cutoffs; dog entries are sold out.

A timed lapped event at Mowsbury Park on 16 May 2026 offering distances from 5 km to ultra with a seven hour time limit, flexible start window and both medal and no medal entry options; places capped at 75.

A Royal Marines designed obstacle course in Cheshire on 16 May 2026 with 6K and 10K routes, Classic and Rookie formats, finisher items and an Event Village with food and music. An Elite Squadron offers chip timing and prizes.

A 5.2 mile fell race with about 1,200 ft of ascent from Appletreewick to Simons Seat and back. Entry costs £10 and includes a drink to be taken at the finish; the event is for over 18s.

A 50 mile team relay for four runners from Sedgwick to Lea Town following the Lancaster Canal, with seven checkpoints, chip timing, on-course medical support and mandatory safety kit.

A 9k road loop in Uplawmoor on 16 May 2026 with varied climbs and a fast downhill finish, organised as a charity event raising funds for Scottish Action for Mental Health.

A weekend obstacle race in Henley on Thames on May 16-17, 2026, featuring Sprint, Super and Beast distances plus a Kids Race and spectator tickets, run along historic town landmarks and a riverside course.

A 15.5 km hill race on 16 May 2026 starting and finishing at Ormidale Pavilion in Brodick on the Isle of Arran. The route climbs to Goat Fell via the standard tourist path and returns the same way, with mandatory mountain safety kit.

Uphill only 7.2 km race to the summit of Glas Tulaichean with 670 m of ascent on double track and open hill sections. The event is organised under Scottish Athletics and Scottish Hill Runners rules with kit and age requirements.

The Holcombe 10 offers *10K* and *10 Mile* trail routes across Holcombe Moor, passing Peel Tower and Redisher Woods. Water stations are at Peel Tower and the National Trust ranger base and proceeds support The Sunnywood Project.

An off‑road marathon on 16 May 2026 along the Tissington and High Peak Trails finishing at Cromford Wharf. The festival also includes a half marathon from Friden and a 10K from Harborough Rocks.

A 5 km muddy obstacle course at Braunstone Park on 16 May 2026 where participants climb, crawl and slide through a circular course. Minimum age 13, limited weather-dependent parking, and a minimum fundraising target of £50.

A community Pretty Muddy 5k obstacle course in Singleton Park on 16 May 2026, with mixed grass and path terrain, staggered wave starts and accessibility provisions including sunflower wristbands and BSL stage content.

Race for Life Brentwood at Weald Country Park on 16 May 2026 offers 3k, 5k and a double lap 10k across grass and woodland trails. The event is chip timed and carries a minimum fundraising target of £50.

A mountain race on Cader Idris of 16.9 km with 915 m of ascent, run on a partly marked route that requires navigation and experience. Entries open online with a limit on competitors and chip timing in place.

Experience a fundraising trail run through the grounds of the Badminton Estate. Choose from multiple distances including a team challenge while enjoying a community atmosphere with a post race BBQ and refreshments.

A community organised 5k and 10k trail run or walk in the Cotswolds on 16 May 2026, offering adult and junior categories and raising funds for the Village Hall and the North Cerney School Association.

A cross-country *10 km* race at Priory Park, Reigate on 17 May 2026, organised by MCC Promotions with on-day registration, hydration stations, basic facilities and support for the charity Sport In Mind.

Add Event
Help us complete the calendar!
  • Distance is at least 5 km
  • Event has a website or Facebook page
Website
Optional: Please provide your e-mail address if we may contact you.
Report a change
We will only update the data if the information is also on the website.