Trail Running calendar near Cardiff 2026-2027

We have found 396 Trailruns within 80 miles of Cardiff. See below where and when you can find the races.

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.

March 2027

Trail running event in the Black Mountains with marked 10, 20 and 40 mile routes from Crickhowell, marshals, stocked checkpoints and strict mandatory kit requirements; canicross friendly and GPX routes available.

A winter trail ultra around Bristol’s Community Forest Path with two distances, self navigation, chip timing and checkpoint support. Timelords provide pace and navigation for target finishes of 9, 10, 11 or 12 hours.

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.

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 volunteer organised spring trail race around Seaton with a near 20 mile coastal and inland course plus a 9 mile Cub option. The weekend includes junior races, wooden finisher medals and steps to reduce single use waste.

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.

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 races in the Cambrian Mountains on 20 March 2027 offering 25 km and 10 km routes plus junior races, waymarked courses with GPX backup, feed stations, mandatory kit requirements, and a not for profit event village.

A way marked half marathon through forest trails around Speech House in the Forest of Dean on 21 March 2027. The Rotary Club organises the event with chip and gun timing, three water stations and charity links.

A coastal mixed terrain run in Exmouth on 21 March 2027 offering 5 km and 10 km routes across beach, seafront and cliff trails. The event supports the Sideshore Project and offers medal or no medal entry plus charity places.

Two long distance routes from Cerne Abbas through Dorset downland and river valleys. Options of 20 or 30 miles with a completion time of 11 hours and checkpoints along the way.

A David Bowie themed trail event at Hurn Forest with a 5.3 km out and back lap and distance choices from 5K to ultra-marathon. Clubhouse facilities, an aid station with snacks, bag drop and a Bowie inspired finisher medal are provided.

Three consecutive long distance days along the Jurassic Coast from Charmouth to Shell Bay. Daily support includes checkpoints with food and drinks, transport from HQ, GPS tracking, medical cover and a bespoke finisher medal.

A space themed trail event at Hurn Forest with themed medals, aid station snacks and 5.3 km laps. Participants can choose distances from 5K to ultra marathon and 20% of entry fees support Forestry England.

A 40 mile coastal ultra from Abbotsbury to Lulworth Cove along the South West Coast path, featuring rugged terrain, checkpoints every 10 to 20 km, compulsory safety kit and GPS tracking; ITRA and UTMB recognised.

April 2027

Three long distance mountain trail races start and finish in Brecon, following circular routes through the Brecon Beacons National Park. Distances range from a marathon to a 100 km ultra with marked routes, checkpoints and compulsory kit re..

A 40 or 50 mile trail ultra along the Testway from Linkenholt to Totton in Southampton, with aid stations every 10 miles, marshals and medical support. A shuttle option is available for an extra £10 and there is a 14 hour cutoff.

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