Trail Running calendar near Trethomas 2026-2027

Enjoy a relaxed two lap trail run through the fields and orchards of Myncen Farm in Dorset. This event offers a 10k course open to all abilities with a supportive atmosphere and optional weekend camping.

On Sunday 19 July 2026 the Wye Valley Tunnel Run near Chepstow offers Colourbust fun runs plus 10 km, half and full marathon courses along the Wye Valley Greenway, including over 1 km of tunnel, support stations and finish medals.

A scenic trail run in Herefordshire starting from Aymestrey. Choose between a 10-mile route with 1,800 feet of climb or a 5-mile option. The course features lanes, forest tracks, and trails.

A traditional off-road fell race on 19 July 2026 at Selworthy Beacon, about 4 miles with 1000 ft ascent and self-navigation required; entry is £12 for FRA members and £14 for non-members.

Experience the woodland trails and lakeside scenery of Llys y Fran Lake in this professional series event. Featuring a timed path course through Pembrokeshire this trail run offers both ten and five kilometer distances.

A marked fell race in South Wales on 23 July 2026, covering 5.5 km with 315 m of climb. Entry on the day costs £3 and the minimum age is 16. Post race tea and cake are available; bring your own mug.

A 100 km route across the Brecon Beacons with 3178 m ascent, six staffed checkpoints and a 24 hour cut off. Entry by application on 25 July 2026 requires prior ultramarathon experience and competent map and compass navigation.

A 100 mile mountain ultramarathon following the Beacons Way National Trail through the Brecon Beacons. This self navigation race features over 6000m of ascent and passes the highest peaks in South Wales.

Run along the scenic banks of the River Severn on a flat disused railway line. Choose from multiple distances ranging from 9 miles to a 37 mile ultra marathon with regular support stations.

Experience the wild beauty of the Brecon Beacons with a range of trail races from 12km to 110km. This UTMB Index event offers multi-stage and single-day options through the rugged hills of Wales.

Join this flexible 7 hour time challenge at Dare Valley Country Park where you can run or walk any distance from 3km to an ultra-marathon on scenic well-maintained paths.

Experience the Somerset coastline and Exmoor on this versatile challenge featuring distance options from 10km to a 50km loop. Enjoy full support with rest stops, camping at Dunster Castle, and a festival atmosphere.

Test yourself on the highest peak in South Wales with a 5 or 13 mile trail race up Pen Y Fan. This supported mountain event features chip timing, finisher medals, and routes through the scenic Brecon Beacons.

Experience a 50 mile ultra marathon around the historic Epynt Way in Wales. This trail event offers 8,559 feet of elevation and scenic views of the Brecon Beacons without any time limits.

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.

Experience a scenic off road run alongside the River Dart in Devon. This community focused event features an 11km main course and a 1 mile fun run with medals for all finishers and a post race BBQ.

Scenic evening cross-country at North Perrott Cricket Club with a two-lap 10K and a one-lap 6K fun run; limited to 250 entries and raising funds for local community projects.

Experience a four day endurance race covering 184 miles along the River Thames. This multi stage event features four unique ultra marathons and requires participants to be self sufficient while navigating the historic river path.

Experience a 57 mile point to point ultra marathon following the scenic Thames Path from Kemble to Oxford. Enjoy a well supported route featuring multiple checkpoints, bespoke finisher medals, and trophies for top performers.

Two trail distances along the Mendip Way on 8 August 2026, finishing at Uphill Sands Beach. The routes feature woodlands, hilltop views and coastal terrain with aid stations and a cupless policy.