Trail Running calendar near Merthyr Tydfil 2026-2027

We have found 374 Trailruns within 80 miles of Merthyr Tydfil. See below where and when you can find the races.

Timed laps on a 2.62 mile out and back canal route with flexible distance options from 5 km up to ultra and a seven hour time limit. Both in person and virtual entries receive a physical medal.

A short, steep fell race on 29 July 2026 in Middletown covering 2.8 km with about 440 m of ascent. Pre-entry and on-the-day entry are offered and junior races are included in the summer series.

August 2026

A *50 miles* loop around the Epynt Way on August 1st 2026, starting and finishing at Noyadd Farm Camping near Builth Wells. Mostly trail terrain with 8,559 ft of elevation, four staffed checkpoints and no formal time limit.

Discover the Rose Run with Phoenix Running South Wales at Parc Taf Bargoed, a scenic multi terrain out and back with a repeatable 5.3 km lap to build distances from 5 km to ultra. Rock up and run with staggered starts and limited spots.

A new 2026 trail running event along the Pembrokeshire Coast from Freshwater East to Saundersfoot, offering 25k and 14k routes with GPX files and a payment plan for entries.

A fell race from Llanthony Show Ground with a senior course of 6.3 km and 350 m ascent, plus a programme of junior races. The route leaves the show field, climbs through farmland and bracken, joins Offa's Dyke path, and returns via a steep..

A community-organised road half marathon and multi-terrain 5K around Sturminster Newton on 2 August 2026, with water stations, marshals, a race T-shirt and finish cake. Online entries close 1 August; day entries possible if places remain.

A family friendly trail event at Porth Farm on 2 August 2026 with 1 mile and 5 km races, modest entry fees, and entries available online.

A four mile evening run in Westbury on 5 August 2026 supporting Brain Tumour Support, with all entry fees given to the charity, pottery mementos for participants and prizes for top finishers and best helmet.

An evening cross country event at North Perrott Cricket Club offering a two-lap 10K and a one-lap 6K fun run. Entries are limited to 250 and all profits support local community projects.

A four-day, 184-mile Thames Path ultra from the river source to the Thames Barrier with daily stages, included accommodation for days one to three, bespoke finisher medals and compulsory mandatory kit and minimum pace requirements.

A 57 mile point to point ultramarathon along the Thames Path from Kemble to Oxford with four checkpoints, mandatory kit requirements and a minimum average pace of 4.0 miles per hour. All finishers receive a bespoke medal and an MTC head vis..

Two trail ultras on the Mendip Way on 8 August 2026 finishing at Uphill Sands Beach, featuring wooded sections, hilltop views, multiple aid stations and a cupless format with professional medical cover.

Tackle the Sticklepath Horseshoe a 15.5 km fell race over rugged moorland with 519 m climb. Pre entry is limited so book early. Bring map compass and solid navigation skills as this event is not suitable for beginners.

Trail races of 24K and 51K start from Talybont-on-Usk on 8 August 2026, with marked routes, marshals and stocked aid stations. Entries include a themed medal, chip timing and free race photos.

A pancake-flat *10 km* out and back along the Brecon and Monmouthshire canal between Gilwern and Llangattock, set in the Brecon Beacons National Park. Finishers receive a medal, there is a drink station at 5 km, and entries are online only.

Multi distance races around Bath that pass through two disused railway tunnels and follow canal and city sections. Organised by Relish Running Races with medals, timed results, aid stations and on site facilities.

A 6 mile informal group run at Croome Park on 10 August 2026 organised by Black Pear Joggers. The one lap off road route includes a lakeside section and finishes with cake and tea or coffee, with profits to the National Trust.

A 4.4 km fell race from the Ragleth Inn in Little Stretton with 390 m of ascent, a clockwise course with three control points, on-the-day or pre-entry and junior up and down Callow Hill races; some proceeds go to charity.

Inflatable 5K in Exeter on 15 August 2026 offers 2.5k, 5k, 10k and 15k inflatable obstacle laps with music zones, finisher medals, on-course water, and family and group ticket options.

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.