Trail Running calendar near Bristol 2026-2027

A winter mountain trail event from Brecon to Cardiff featuring a 47.5 mile ultra over 11 summits and a 26.2 mile marathon from Merthyr, both on unmarked routes with GPS navigation and staffed checkpoints.

A one way, fully marked 70k ultramarathon along the Taff Trail from Brecon to Nantgarw. The route moves from mountain landscapes to former industrial valleys and includes coach transfer to the start, checkpoints and live GPS tracking.

A timed event on a 2.62 mile out and back canal route with flexible rock up and run starts. Distances range from 5 km through marathon and beyond, with a seven hour time limit and a finisher medal for all.

Two Tunnels in Bath on 21 February 2027 offers many distances and runs through two long restored, lit and surfaced railway tunnels under the city, with start and finish at Brickfields Park and a charity contribution to Sustrans.

BigMud is the Earth event in the Classic Element Trail Series, with single-lap muddy routes in the Meon Valley and three distances. Races start and finish at Queen Elizabeth Country Park with marked courses, aid stations, and mandatory hydr..

A 7 hour Time Challenge at Dare Valley Country Park on 28 February 2027 offering flexible distances from 3 km up to ultra and 50 km, with medals, distance pins, goody bags and on-course aid at each lap.

Marked trail runs in the Black Mountains from Crickhowell, Powys, with 10, 20 and 40 mile options, stocked checkpoints, mandatory kit checks and cut off times of 5, 8 and 16 hours respectively.

A winter ultra around Bristol on the Community Forest Path with two self-navigated distances, chip timing and checkpoint support. Timelords offer pacing and finishers receive event kit and certificates.

A winter ultra around Bristol's Community Forest Path offering 45 or 30 mile anti clockwise routes. Self navigated with GPX support and pacers, timed checkpoints, cup free aid stations and bespoke finisher medal and technical tee.

The Imber Ultra is an annual trail run of just over 33 miles organised by Avon Valley Runners and the Rotary Club of Westbury, with route details, checkpoints, results and photos provided by the organisers.

A coastal mixed terrain event at Milford on Sea with an out and back 5.3 km lap. Runners pick their distance from 5K to ultra with aid stations, toilets, and a medal for anyone completing at least one lap.

Trail races from Larmer Tree Gardens take runners around the Rushmore Estate with distances from a fun mile to a marathon. Courses pass chalk valleys and woodlands and include multiple feed stations and event medals.

A coastal trail run from Swanage seafront to Corfe Castle offering three distances, firm chalk and sandy trails, on-course support, and a private vintage train return priced at £9 per person.

An all-women trail run at Culden Faw Estate, Henley on Thames on 14 March 2027, offering 3 km, 6.5 km and 13 km routes through woodland and parkland with chip timing, medals and entrant benefits.

A 50km trail ultramarathon through the Chilterns centered at Stonor Park, run as two 25km loops with 4000 ft of climb, five aid stations and full medical support. The event has a nine hour finish limit and medals for all finishers.

Looped trail event from Bath Racecourse offering 50 km, 29 km and 10 km routes through Bath. The event features signed routes with GPS tracking, covered rest stops, medical and massage support, and categories for walkers and competitive run..

A 50k east to west Dartmoor traverse organised by Wild Running with solo and pairs entries, live GPS tracking and up to three checkpoints. The route covers moorland and villages, has 1327 m of ascent and a 10 hour cut off.

Point to point trail races on the South Downs Way offering a 50 mile ultra, a 50 km ultra and a marathon with marked routes, aid stations, coach transfers and an option to plant a tree instead of taking a medal.

Trail races around Escot Park offer a single-lap 10K (about 10.5 km) and a two-lap half marathon, both off-road with climbs and mud; canicross categories are available and medals are awarded to all finishers.

Trail running at Matterley Basin in the South Downs National Park with three route options across chalk downland, woodland and ridgelines. Courses are fully marked, timed and supported with outposts, parking and a finishers medal.