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 2208 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 children's fun run organised by Afan Valley Swimming Club on 23 August, covering approximately 1 mile of mixed grass and tarmac with uphill and downhill sections. Entry includes a finishers' medal and a bag of sweets.

A TRA licenced five mile trail race organised by Leigh Harriers AC at Leigh Sports Village on 23 August 2026, with affiliated and unaffiliated entry categories and published entry prices.

Trail running festival in Devilla Forest on 23 Aug 2026 with one-lap half marathon, 10 km, 5 km and a 1.5 km family fun run. Routes are signed and marshalled and finishers receive medals while proceeds support local charities.

Experience a scenic run through the historic Richmond Park on this UK Athletics Affiliated course. Choose between a half or full marathon distance following the trails and private roads of London’s largest Royal Park.

A trail run entirely within Richmond Park offering half marathon and marathon distances, a route past the White House and park lakes, and on-course drinks and feed stations.

A roughly 10 km trail race around Brodick on the Isle of Arran, mainly on rough footpaths and forestry roads with about 600 feet of ascent. Held under Scottish Athletics rules with a minimum age of 16.

A self navigation trail event along the Colne Valley Path with marathon and half marathon distances, stocked aid stations, cupless arrangements, a pre-race shuttle and optional medal choices.

Summer community races of 5 km and 10 km from Whitwell and Reepham Railway Station along Marriott's Way, with medals for finishers and fundraising for Keeping Abreast Breast Cancer Reconstruction Support Charity. The races are not timed.

MacTuffX Portsmouth on 23 August 2026 at the Mountbatten Centre combines ten Xercises and running with solo, doubles or five person relay options; entries are for adults and a LITE weight division is offered.

A roughly 5.7 mile off road trail in Cardenden Woods on 23 August 2026 that passes the site of Scotland's last pistol duel. Trail shoes are recommended and every finisher receives a unique medal.

A single lap, undulating trail of about 7 miles through Adel Woods, Scotland Woods and Meanwood Park in Leeds, organised by Valley Striders AC with chip timed results, age group prizes and basic facilities at Old Leo's Rugby Club.

A 10 mile trail race through Radnor forest in Mid Wales on 23 August 2026, held in aid of the Special Care Baby Unit in Hereford. The route reaches Black Mixen at 2130 ft and includes forestry roads, moorland and tree covered single track.

A 21k trail run around Borrowdale based in Keswick, featuring lakeshore trails, woodland singletrack and 550 m of ascent. The course is fully marked, chip timed and supported with hydration and medical cover.

A steep, scenic trail run in Godshill offering a 5K one-loop option and a 10K two-loop option with 738 ft of climb. A relaxed community fundraising event with no chip timing and local charity support.

An urban to trail 8 mile loop from Bournemouth Square through Meyrick Park, fully signed with a midcourse aid station and modest elevation. A 10 week social training programme run by Sole Clinic supports runners preparing for the event.

A trail half marathon across the Dunstable Downs on 23 August 2026, starting from Creasey Park in Dunstable. The self navigated route includes checkpoints, guide runners and a GPX file and offers on site facilities and a finisher medal.

A small field trail race around Ticehurst covering 7.5 km of mainly off road trail, with course marshals, prizes for first male and female, post-race tea and cake, and an entry limit of 60 runners.

A Backyard Ultra style 12 hour event at Cadwell Park where runners complete a 6.7 km lap each hour for a potential total of 80.4 km. Categories include solo and pairs plus a six hour non competitive option.

A timed, multi-distance event at Ardingly Reservoir with lap-based 7 km out-and-back course, a seven hour limit and flexible start window; finishers receive a donut medal and a no-medal entry option is available.

The Admiral McHilly Trail will take place in Chelmsford on Sunday 23 August 2026. You can run between 6 and 16 miles.

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.