Trail Running calendar near Brecon 2025-2026

We have found 196 Trailruns within 80 miles of Brecon. See below where and when you can find the races.

The Barrows and Downs is a trail running event featuring a marathon and half marathon set in the historic southern area of Salisbury Plain, Wiltshire. Participants run among ancient barrows dating back to 3500 BC, enjoying scenic views of the Wiltshire Downs. Both race routes start and finish at Til..

The Breidden Hills Race, organized by Mercia Fell Runners, is a challenging fell running event set in the scenic West Midlands. Participants will tackle a distance of 11.5 km with a total ascent of 790 meters, making it a demanding course for runners. The race requires pre-registration and is open t..

The Forest of Dean Ultra Marathon will take place in Coleford on Saturday 18 October 2025. You can run 34 miles.

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The Brenig Way 50K Trail Race is a challenging ultramarathon that covers 50 kilometers through remote upland scenery in Wales. Starting in Corwen, participants follow a marked footpath along country lanes, forest tracks, and riverside paths, crossing notable landmarks such as Clocaenog Forest and Ll..

The Keynsham Dandy is an off-road running race organized by Town and Country Harriers (TACH) in the Bristol area. The event covers approximately 12.5 miles, starting in Keynsham and featuring a scenic route that includes the revival of the Compton Dando path, complete with a stream crossing. The rac..

The Giddy Horse Backyard event is a unique running experience taking place at Chepstow Racecourse in Piercefield Park. Scheduled for October 25, 2025, it features various race formats including 8-hour, 12-hour, 24-hour, and relay options, all set on a scenic 4.167-mile loop that combines woodland, p..

The Worcester Ring Run is an exciting 23-mile running event taking place on October 25, 2025, starting from Droitwich Rugby Club. This scenic route features a clockwise loop along the Droitwich Canal and the Worcester & Birmingham Canal, offering a mostly traffic-free experience. Participants can en..

The Giddy Horse Half Marathon, Trail, & Steeplechase Obstacle Course Races is an exciting running event taking place on October 26, 2025, at Chepstow Racecourse in the UK. Participants can choose from various race options, including a half marathon, 8-mile and 4-mile trail races, and steeplechase ob..

The Black Beacon Mountain Trail Races are challenging long-distance running events held in the Bannau Brycheiniog (Brecon Beacons) National Park, South Wales. The races are linear, crossing from north to south, finishing in Pontneddfechen. Participants can choose from four distances: 21 miles, 50 ki..

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November 2025

The November Nightmare is an exciting running event taking place over eight days in Telford, Shropshire, celebrating its 10th year. Participants can choose from various distances each day, including 8 miles, a half marathon (approximately 16 miles), or a full marathon. Runners can opt to compete in..

The OTT Ultra Marathon is a challenging 30-mile trail race held in the scenic Brecon Beacons, South Wales, starting from Merthyr Tydfil. The course features technical trails, including the Taff Trail and paths alongside the River Taff, leading to the Beacons Reservoir. A highlight is the climb to Pe..

The Beacons Ultra is a thrilling running event featuring three race distances: a 49-mile ultra, a 26-mile marathon, and a 13-mile half marathon. Set in the picturesque town of Talybont-On-Usk, nestled in the Brecon Beacons, the event showcases a mix of trails, mountains, canals, and roads. Participa..

Endurancelife Gower offers a series of trail running events set in the stunning Gower Peninsula, the UK's first designated Area of Outstanding Natural Beauty. Participants can choose from 10K, half marathon, marathon, and ultra distances, all featuring challenging terrain including grass, moor, beac..

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The Bristol MoRun is a lively running event held at Ashton Court Park, featuring 1.5k, 5k, and 10k distances. The course combines paths and trails with hilly sections between 1km and 3km, suitable for dog walkers and off-road buggies but not wheelchairs. The 5k is a single lap, while the 10k covers..

DirtRun In The Dark is an off-road running event held at The Wyre Forest, Callow Hill Visitor Centre. Participants tackle a 10km course consisting of two laps around forest tracks and trails, all run in the dark, making torches compulsory. The race welcomes runners aged 14 and above and allows canic..

Dusk Till Dawn The Winter Edition is an exciting running event organized by Mad Running Junkies, set in the scenic Bridgend, South Wales. Participants will tackle three 10-mile routes over a challenging 12-hour period, starting at dusk and finishing at dawn. This event is designed for those looking..

The Trails & Tarmac 12hr Backyard Ultra is an exciting endurance running event set in the scenic Black Mountains near Crickhowell, Powys. Participants will tackle a 4.2-mile loop, completing as many laps as possible within a 12-hour timeframe. The first 11 laps must be finished within an hour each,..

The Bath Skyline running event, organized by Relish Running Races, offers 5km and 10km off-road races around the iconic Bath Skyline, featuring woodland trails, open meadows, and hilltop views of Bath. Held at the University of Bath's West Car Park, the course is mostly flat with some gentle rises,..

The Margam Trail Races, organized by Trail Revolution, will take place in Margam Park on November 15, 2025. This event features a variety of race distances, including 5km, 10km, and a half marathon, designed to challenge participants on the park's scenic forest paths and woodland trails. The course..

The Callow Fell Race, organized by Mercia Fell Runners, is a challenging event that has transitioned from a summer to a winter series race. Covering a distance of 8.1 km with a total ascent of 762 meters, it is recognized as one of the toughest races in Shropshire. The course features steep climbs a..