Trail Running calendar near Merthyr Tydfil 2026-2027

We have found 343 Trailruns within 80 miles of Merthyr Tydfil. See below where and when you can find the races.

A seven hour time challenge at Dare Valley Country Park offering distances from 3 km to 50 km, with medals, aid stations and vegan goody bags.

A 7 to 8 mile cross country run around May Hill in Gloucestershire with steep climbs, muddy trails and an open plain at the summit. A Sunday May Hill Mayhem option adds an extra loop to total 14 to 15 miles.

February 2027

A night race at Westonbirt National Arboretum on 6 February 2027, with scenic routes through tree collections and firm trail-like surfaces. Distances include 5 km and 10 km; tickets are currently sold out.

Exeter Half Marathon and Riverside 5 run along the Quayside and through Riverside Valley Park, offering a two lap 13.1 mile race and a five mile option with finisher medals and support for local charity fundraising.

A Backyard Ultra near Crickhowell with a 4.167 mile mixed trail and tarmac loop; competitors run eleven hourly laps and then race a final twelfth lap, with aid stations, medics, showers and parking on site.

A 5km and 10km run through Westonbirt Arboretum on 7 February 2027, with firm trail terrain and routes through areas showcasing over 2,500 tree species. The event is family friendly and tickets are currently sold out.

A 17 mile self navigated trail run through scenic East Devon. Runners visit four distinct trig points on a course that starts and ends at the Sidmouth Watersports Hub.

A UKA measured 10 mile road race on 14 February 2027 starting and finishing at King George V Playing Field in Melksham. The course passes Lacock, offers prize categories and medals for finishers, and includes water stations and basic race f..

A trail event in Dalwood on 14 February 2027 offering 10 miles, 5 km and 3 km routes across hilly, muddy countryside with river crossings. The event is licenced by the Trail Running Association and follows UK Athletics rules.

Choose your distance from 5k to Ultra on a tough off road course at Pengethley Manor. Experience vineyard trails with a seven hour time limit and unique medal options for individuals or pairs.

A winter mountain trail event from Brecon to Cardiff featuring a 47.5 mile ultra over 11 summits and a 26.2 mile marathon from Merthyr, both on unmarked routes with GPS navigation and staffed checkpoints.

A one way, fully marked 70k ultramarathon along the Taff Trail from Brecon to Nantgarw. The route moves from mountain landscapes to former industrial valleys and includes coach transfer to the start, checkpoints and live GPS tracking.

A timed event on a 2.62 mile out and back canal route with flexible rock up and run starts. Distances range from 5 km through marathon and beyond, with a seven hour time limit and a finisher medal for all.

A winter walk or run across remote Dartmoor on 20 February 2027, offering fully supported 50 km and 30 km options with navigation support, GPX files and qualified mountain leaders on course.

Two Tunnels in Bath on 21 February 2027 offers many distances and runs through two long restored, lit and surfaced railway tunnels under the city, with start and finish at Brickfields Park and a charity contribution to Sustrans.

A 7 hour time-challenge at Dare Valley Country Park offering looped distances from 3 km up to ultra, with medals, distance pins, goody bags and on-course aid.

A navigational challenge in Worcester where participants are blindfolded and dropped at an undisclosed location, then must find their way back over measured distances of 6, 10 or 15 mile. Optional live GPS tracking is available for safety a..

March 2027

Trail running event in the Black Mountains with marked 10, 20 and 40 mile routes from Crickhowell, marshals, stocked checkpoints and strict mandatory kit requirements; canicross friendly and GPX routes available.

A winter trail ultra around Bristol’s Community Forest Path with two distances, self navigation, chip timing and checkpoint support. Timelords provide pace and navigation for target finishes of 9, 10, 11 or 12 hours.

A winter ultra around Bristol's Community Forest Path offering 45 or 30 mile anti clockwise routes. Self navigated with GPX support and pacers, timed checkpoints, cup free aid stations and bespoke finisher medal and technical tee.

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.