Trail Running calendar near Merthyr Tydfil 2025-2026

Join the Hallow 12 Parish Challenge on Saturday 11 July 2026 for circular off road walks and runs through 12 charming local parishes. Choose distances from 10 to 40 miles with waymarked routes, checkpoints and a hot meal at the finish.

The MTC Severn Way Ultra is a scenic 57 mile point to point ultramarathon along the River Severn, from Worcester to Stonehouse on 11 July 2026. Enjoy flat terrain, riverside views and friendly checkpoints as you tackle a classic ultrarun.

Enjoy scenic trails through the Shropshire Hills at The Piece of Cake Trail Run in Carding Mill Valley, with 10K, half and full marathon options. Post run treats and a cake competition add a sweet finish to this countryside challenge.

Explore the stunning Black Mountains with distances from a half marathon to 50 miles across mostly trail terrain. Self navigation with GPX, trackers and full aid makes this a bold yet well supported trail challenge.

Tackle the 12 hour Dusk To Dawn challenge at Bridgend Miniature Railway on 18 July 2026, running as many 10 mile loops as you can across mixed terrain and forested hills. Expect night markings, on course support, and a true endurance test.

Tackle the Dragon Coastal Races across the stunning Wales Coast Path with 100, 50 and 30 mile ultra trail options all finishing in Cardiff Bay. Run beaches, dunes and shingle with checkpoint support, GPS tracking and a celebratory finish at..

Rabbit Run Wales stages scenic coastal trail races on Merthyr Mawr Estate, from a punchy 12K over hills, valleys and the Big Dipper sand dune to a 40K that adds the dramatic Glamorgan Heritage Coast. Family Bunny races and a Toddler Dash ma..

Run the Gower Peninsula Ultra Challenge from Penrice Castle with distances from 10 km to a 100 km figure of eight route highlighting wild coastal scenery and big climbs. Fully supported with rest stops, tracking, and finisher goodies.

Experience the Wye Valley Tunnel Run, racing through the atmospheric Tidenham Tunnel and scenic riverside and old railway paths. Distances suit everyone from a Colourbust family fun run to a full marathon, with trail charm and big event ene..

Run or walk as far as you like in the 7 hour Ooops I Ran It Again event at scenic Dare Valley Country Park, from 3 km to ultra distances. Finishers earn themed medals and distance pins, with aid stations, vegan snacks and free parking, and..

Take on the South West Coast 50 Ultra Challenge around Dunster, a scenic 50 km loop along the Minehead section of the South West Coast Path across Exmoor with about 1600 m of climb. Enjoy staffed aid stops, camping, GPS tracking and post ra..

Tackle a spectacular 100 km mountain ultramarathon along the Beacons Way, crossing Pen y Fan and the wild ridgelines of the Brecon Beacons. Limited to 250 runners, this rugged self navigation challenge rewards grit with epic views and serio..

Ultra X Wales takes runners into the wild Brecon Beacons and Black Mountains for a scenic multi day trail event on 25 to 26 July 2026. Distances from 12 km to 110 km suit all endurance levels and select races carry UTMB Index status.

Take on the Beacons Way Ultra, a 100 mile trail through the Brecon Beacons that climbs iconic summits such as Pen y Fan and the Black Mountains. Expect rugged scenery, self navigation and placed checkpoints for an adventure.

Take on the Pen Y Fan Challenge, a scenic trail race up to the summit with 5 mile and 13 mile options. Enjoy chip timing, a finisher medal and buff, marshalled routes and stunning South Wales views.

Run a scenic route along a disused railway beside the River Severn between Ironbridge and Bridgnorth, enjoying riverside views and industrial heritage. The Railway Ultra returns in 2026 with distances from 9 miles to 37 miles and Winter and..

Join EDDUM 2026, a scenic 50 mile trail around the Epynt Way encircling the Sennybridge Training Area in Wales. With no time limits, five manned checkpoints and full crew support, it is a welcoming test of endurance.

Tackle the Thames on a four day 184 mile endurance race from the Cotswolds to Greenwich, 6 to 9 August 2026. Enjoy supported nights, strict pace cutoffs and stunning riverside scenery while earning UTMB points.

Tackle the MTC Cotswold Ultra, a 57 mile point to point along the Thames Path from Kemble to Oxford. Expect sparse support, stunning riverside scenery and a rewarding finish for seasoned trail runners.

Run the Mendip Marauder, a scenic but hilly trail on the Mendip Way with 30 or 50 mile options that traverse Ebbor Gorge, Cheddar and woodlands before a memorable finish on Uphill Sands Beach. Well marked trails and staffed aid stations sup..