Trail Running calendar near Cardiff 2026-2027

We have found 303 Trailruns within 80 miles of Cardiff. See below where and when you can find the races.

A winter running event at Westonbirt Arboretum on 8 February 2026 offering 5 km and 10 km wave-start races through the arboretum’s tree collections. Tickets are currently sold out.

Trail running event from Weymouth and Portland National Sailing Academy featuring marathon, half marathon and 10k on the Portland section of the South West Coastal Path. The route is self navigated with feed stations, mandatory kit and awar..

A self navigated 17 mile trail loop around Sidmouth visiting four trig points. The event has a c.914 m climb, requires pre entry and is for adults only, with proceeds donated to Cardiac Risk in the Young.

Join the Wye Valley Brewery Muddy Woody on 8 February 2026 for a muddy, runnable trail romp of about 6 miles through forestry and stiff hills. Limited to 300 places, entrants get a bespoke Muddy T shirt and chip timing.

A 10 mile run on 08 Feb 2026 that starts and finishes at King George V Playing Field in Melksham and routes via the village of Lacock. Prizes and medals are awarded, entry restricted to ages 16 and over; the event is closed.

Take on the Wray Valley Trail in Bovey Tracey with Phoenix Running Devon The Launch. Scenic 5.3 km laps along the River Bovey, flexible start times and a keepsake memento for every finisher. Limited to 50 runners, so book early.

A tough 18 km fell race with 1300 m ascent around Carding Mill Valley, run to FRA rules. Competitors must carry full kit, record checkpoints with an SI dibber and meet strict cut-offs; event proceeds support local charities.

A night trail event near South Brent with two courses, 9 miles across Dartmoor and 5 miles on local roads and paths. The route is marked but a route device is recommended, with catering, live music and a shared sauna after the run.

Run or walk the Purbeck Hill Challenge from Knoll Beach Studland, enjoying the Purbeck Hills and Jurassic Coast with optional orienteering sections. Multiple distances, solo or pairs, self supported and limited to 100 entries.

The Love Run on 14 February 2026 at Pengethley Manor offers 5k to ultra options on a tough offroad loop with a seven hour completion limit and virtual entries plus a choice of full or split medals.

Multi-distance trail event in Dalwood, Axminster on 15 February 2026 with 10 mile, 5 km and 3 km routes across muddy, hilly countryside. Village Hall is race HQ with parking, toilets and on-site medical support.

Run a flat, traffic free 10k on the National Cycle Network from Calne to Stanley near Chippenham, chip timed and well marshalled on an out and back multi terrain course. A 1 mile fun run for under 17s and limited entries make this a friendl..

Run Brimscombe's canal towpath at the Back to the 80s timed event, choosing any mix of 2.62 mile laps to make 5k to ultra distances. Enjoy a relaxed one hour start window, seven hour limit and a bespoke finisher medal to mark your effort.

A fully supported winter challenge across Dartmoor offering 50 km and 30 km routes from south to north. The route crosses remote open moor with unmarked sections and on-course guides, maps and GPX support are provided.

A set of city-centre races in Bath that run through two long lit tunnels under the city, with distances from Colourburst fun runs up to a 50 km ultra. Brickfields Park is the hub and the event supports Sustrans with a donation per runner.

A 9.5km off road race at Kinver Edge and The Rock Houses on 22 February 2026, run as two laps around local trails. Limited to 100 runners, entry fee £18; medals for all and prizes for the top three in each gender.

Take on the Sorbrook Slog on 22 February 2026, a lively 7 mile multi terrain race through footpaths, fields and gullies around Sorbrook and Sluvad in Cwmbran. Enjoy marshals on course, post race tea and cake and a finishers goodie bag.

The Terminator 2026 is a tough but rewarding 12 mile trail race around Pewsey, Wiltshire, mostly off road with muddy climbs and high point views. All finishers receive a unique T shirt and race village treats await.

Pair up for a winter challenge across Dartmoor's Eastern Tors, starting from the Rugglestone Inn in Widecombe. This demanding 11 miles route with 830 meters of climb needs teams, required kit and pre entry for a small, limited field.

Join a weekend fell and trail running retreat in the Black Mountains, Wales from 27 Feb to 1 Mar 2026 at Dinas Castle Inn. Guided runs on the Dragons Back ridge, skills coaching and bunkhouse accommodation make for an inspiring weekend for..