Trail Running calendar near Mumbles 2025-2026

We have found 179 Trailruns within 80 miles of Mumbles. See below where and when you can find the races.

Enjoy scenic trail running and canicross around Wimbleball Lake on August 28, 2026, with 5K and 10K routes for runners and dog teams. Camping, parking and toilets on site make it a relaxed lakeside race day with medals for all finishers.

Tackle the Black Cattle Ultra in South Wales, a rugged point to point adventure finishing near Castell Coch. Choose 33 mile or 44 mile routes through mountains, wooded vales and villages, organised by the Ridge Runners community.

September 2026

The RIDUM is a 30-mile ultra marathon held in South East Wales, following the Rhymney Valley Ridgeway Walk. This challenging trail run features 4,252 feet of elevation, taking participants across ridge tops around the Caerphilly basin with..

Celebrate the 10th Dartmoor Volcano Race, a 10.5 mile trail challenge across rugged moorland with over 550 metres of ascent, river crossings and a volcano summit. Expect technical terrain, sweeping views and a festive finish line.

The Relentless is a looped ultra near Bridgend on 18 September 2026 with 50 mile and 100 mile options over repeated 10 mile laps and big climbing. Limited to 25 runners per distance, the race features a well stocked hub for aid and crew.

Take on Trails & Tarmac Backyard Ultra in Crickhowell, a scenic 4.2 mile loop split between trail and tarmac. Run an hourly loop until you are the last runner standing, with medals awarded from 32 miles.

Race scenic trails at Margam Country Park with castle views on a 5K or 10K loop. Fully marked and marshalled with chip timing, water stations and a finisher medal, ideal for new and experienced runners.

Run through ancient woodland in the Forest of Dean at the Autumn Half Marathon starting and finishing at Speech House. This scenic 13 mile trail on well marked tracks supports local charities and awards a medal to every finisher.

October 2026

Run the Dartmoor Way on 2 3 October 2026 with the Full Circle 100 or Granite 50, two rugged trail races across moorland, woods and green lanes. Big climbs, indoor checkpoints and a true off road challenge for experienced runners.

Tackle Dartmoor with the Full Circle 100 or the rugged Granite 51 mile eastern loop across Dartmoor National Park. Expect waymarked moorland, woodland and riverside trails, strong on support with GPS tracking and finishers medals.

Run a scenic multi terrain 10 mile course through Stover Country Park and Teigngrace, mostly off road, at Stover School, Newton Abbot on Sunday 4 October 2026. Limited to 325 entries and includes a 1 mile fun run and bespoke finisher medals..

Twin Peaks & Ras Consti in Aberystwyth is a scenic coastal race mixing paths, roads and rocky climbs. Seniors run 11.7 km with climbs of Pen Dinas and Constitution Hill while juniors race shorter routes finishing on the promenade.

Blaze the Biblins is a lively 6 miles trail race through ancient woodland, riverside paths and historic ironworks, featuring climbs and technical single track. Enjoy prizes, a memento and post race tea and cake; entries are limited.

Creepy Crawl on 21 October 2026 at Pengethley Manor offers 5k to ultra distances on a challenging off road loop through hills and two vineyards. Ideal for runners and walkers craving a scenic, gritty test of endurance.

November 2026

The North Coast 110 will take place in Combe Martin from Saturday 7 November 2026 to Sunday 8 November 2026. You can run between 38 and 110 miles.

Take on NIGHT DESCENT 32 Ultra, an overnight staged 32 miles around Bridgend split into four progressive stages. With aid stations, gear drop and a buzzing base camp, this event blends challenge and camaraderie under headlamp light.

The Medal Mix Challenge Day 1, organized by Running Events Devon, takes place near Capel Lane, Littleham, Exmouth on November 28, 2026. This 7-hour timed event features a scenic 5.3 km out-and-back course on an old disused train line, fully..

The Medal Mix Challenge Day 2, organized by Running Events Devon, takes place on Sunday, 29th November 2026 near Capel Lane, Littleham, Exmouth. This 7-hour timed event welcomes runners and walkers of all abilities to complete as many 5.3 k..

December 2026

Take on the Nightmare Before Xmas Trail ½ Marathon on 19 December 2026 at Bridgend for a festive, muddy trail challenge with technical climbs and scenic road sections. Limited to 70 places, with a bespoke medal, mince pies and prizes for be..