Trail Running calendar near Mumbles 2026-2027

We have found 225 Trailruns within 80 miles of Mumbles. See below where and when you can find the races.

This ultra event offers two classic distances on the Cambrian Way, starting from historic Llanthony Priory or Abergavenny and finishing in Cardiff. The route passes Castle Coch and traverses mountain landscapes and wooded valleys. It's orga..

A fell race in North Pembrokeshire on Sat 29 Aug 2026 covering 8 km with 330 m of climb. Entries are accepted in advance and on the day, and junior Mochyn du races have entry on the day only.

An 8-hour timed challenge on an old railway line. Start any time you like within the window and see how many 5.3 km laps you can complete by the cutoff. All finishers, even those completing just one lap, receive a medal.

A fell race in Machen of about 7 km with 365 m of ascent, with registration at Machen Welfare Ground and start and finish on Church Street. Entry is £7 on the day and participants must be over 18.

September 2026

A 30 mile ultra around the Rhymney Valley Ridgeway Walk, mostly on trail with about 4,252 feet of ascent, starting and finishing at Parc Penalta, with three fully stocked checkpoints and no official time limit.

Haytor Heller is a single lap, off road moorland race of about 6 miles around Haytor Rock with steep climbs, a stream crossing and a strict cut off at Hound Tor. The event has a 350 runner limit and entries open in spring.

A running event at Westonbirt Arboretum on 5 September 2026 with 1 mile, 5 km and 10 km routes through varied tree collections; organised by Relish The Great Outdoors and currently showing tickets as sold out.

RunThrough Snowdonia Sea2Sky in Barmouth invites trail runners to tackle coastal paths and climb Cadair Idris with 12 km, 25 km and 54 km options. Expect stunning views, waymarked trails, chip timing and a lively event village.

A long-distance walking and running event crossing Wales over a 45 mile linear route to be completed within 18 hours, presented as a weekend package with accommodation, coach transport, refreshment stops and route maps.

Join the Ross on Wye Riverbank Run on 6 September 2026 for scenic multi terrain 5k, 10k and a family fun 500m along the River Wye. Flat, fast course, chip timing and medals for all finishers make it perfect for racers and families alike.

A 10.5 mile trail race on Saturday 12 September 2026 across southern Dartmoor, visiting Ryders Hill and the Red Lake Volcano. The marked, marshaled route includes river crossings, bogs, a clapper bridge and an aid station at about 6.3 miles..

A multi-distance walking event on 12 September 2026 from Wistanstow Village Hall, with 12, 18 and 26 mile routes through Clun and Bishop's Castle and much of the Shropshire Hills AONB. Entry is limited and support is provided.

Eight mile town to tide run from Barnstaple Pannier Market to Crow Point on 13 September 2026, with a one mile children's race and an event village near the finish. Proceeds support Families in Grief.

The Relentless This event takes place at the Bridgend Miniature Railway in Bridgend, South Wales. It is a multi-lap ultra marathon organized by Mad Running Junkies. Runners choose between two distances: a 50-mile or a 100-mile race. The rac..

A community run along the Exe Valley Way from Exmouth to Dulverton offering a 43 mile ultra and a team relay with shorter sections. The event highlights Exe salmon and works with river restoration partners.

A hilly trail event in the Cothi valley offering a 13 mile half marathon, a 6.5 mile alternative and a kids race, held at Pumsaint Village Hall with online entry and published route and results.

Three long-distance coastal trail races on the Wales Coast Path around the Gower peninsula, with 50, 34 and 23 mile options. The event uses GPS tracking and checkpoints, and requires self-navigation and compulsory kit.

Take on the trails of Margam Country Park. This event offers both a 5K and a 10K route on scenic paths, with car parking and a finisher's medal included for all participants.

This autumn half marathon takes place on scenic forest trails in the Forest of Dean. The course features no road crossings and offers a unique, slightly hilly route. Organized by the Rotary Club for charity, it provides chip timing and a me..

October 2026

A waymarked 100 mile circumnavigation of Dartmoor along the Dartmoor Way. Continuous non stop race with six indoor checkpoints, around 4000 m ascent, GPS tracking, mandatory kit checks and on route food and medical support.

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