Trail Running calendar near Cardiff 2025-2026

We have found 288 Trailruns within 80 miles of Cardiff. See below where and when you can find the races.

Take on the Red Warrior multi terrain races at Margam Country Park on 22 March 2026, with 5K, 10K and 20K routes for solo runners and canicross teams. Expect varied trails, friendly vibes and a great day out for competitors and their dogs a..

The Way of the Dead is a rugged 50k Dartmoor traverse on 28 March 2026, finishing at Tavistock Stannary Brewing Company. Enter solo or in pairs for a scenic but testing navigational challenge across tors and moorland.

Beyond Bristol is a scenic trail run on 28 March 2026 offering 55 km ultra and 25 km trail routes from Museum Square. Routes pass under Clifton Suspension Bridge and through parks and woodland, with feed stations and GPX files.

Run past the Royal Crescent and along the River Avon in the Bath 50 Ultra Challenge on Sat 28 March 2026, starting from Bath Racecourse. Choose 50 km, 29 km or 10 km loops with full support, a finisher medal, T shirt and a hot finish meal f..

UTMB Index

Enjoy scenic trail running at Escot Park near Exeter, with rolling climbs, mud and a two lap half marathon or single lap 10K, plus canicross options. Professional timing, medals and refreshments on site make it a fun off road day out.

Intergalactic at Hurn Forest lets you choose any distance from 5K up to ultra on scenic, well maintained forest tracks. Finishers earn medals, there is a seven hour limit, and 20 percent of fees go to Forestry England.

Take part in the Minster Challenge on 29 March 2026 in Axminster, with 12km, 5km and 3km options across scenic but testing terrain. All finishers get medals and you can refuel with homemade cakes and hot drinks at race HQ.

Tackle the Feighan Fury 10 mile trail through mid Devon hills, woods and river crossings or enjoy the family friendly 5 km Templeton Trail fun run. Fury finishers get a technical vest and fun runners a medal, and this is a cup free event.

Join the Run Upcote Spring Trail on 29 March 2026 at Upcote Farm for a scenic 5 mile off road race across bridleways, farm tracks and forest paths with testing climbs and descents. Entries are limited so expect a friendly, well supported ev..

April 2026

Run the Testway Ultra on 4 April 2026 and choose a scenic 40 or 50 mile route along Hampshire's Testway with regular aid stations and a 14 hour cutoff. Medals and prizes await finishers.

Take on a scenic 30 mile circular ultra from Monmouth through the borderlands, passing medieval castles and following sections of Offa’s Dyke Path. Mostly trail with big climbs and fully manned checkpoints for support.

Run the iconic Pendine Sands on 5 April 2026 with beach out and back routes from 5k to a 32.8 mile ultra. Expect a scenic tidal course with bespoke finisher medals and trophies for top runners.

Steam to the coast then run back to Minehead along scenic trails and the ridgelines of the Quantock Hills. Choose 11 km, 11 miles or the 26.2 mile marathon as heritage steam trains ferry runners to their starts.

Discover the Vale Coastal Races on 11 April 2026 with 32.5 mile ultra, 18.5 mile and 10 mile trail options. The Wales Coast Path hugs cliffs, beaches and coves, finishing at Ogmore by Sea with marked notes and checkpoints.

UTMB Index

Enjoy stunning coastal, woodland and dune trails at Oxwich Bay with 5 km, 10 km or a self navigated half marathon. Part of the Run The Trails Series, the event is timed and all finishers receive a medal.

Run the scenic South West Coast Path from Exmouth to Seaton in the annual Exe to Axe, finishing on Seaton beach opposite the Mariner's Hotel. Choose solo, relay or half distances with checkpoint support and chip timing.

The Big Cheese is an off road fell race in Cheddar, Somerset, covering 15 miles across the Mendip Hills with over 2,000 ft of climb. Take on a fully marked course and enjoy a finisher's medal plus tea and cake at the end.

Tackle the Kymin Dash, a 7 mile road and trail race from Monmouth that climbs to the Round House for panoramic views before descending through fields and bluebell filled woodland. Enjoy a lively finish at Monmouth School Sports Club with Ki..

Take on the Wild Horse 200 series: two epic 200 mile trail ultramarathons across Welsh trails and mountains. Run the South Wales coast route from Chepstow to Worm's Head in April or the Mid Wales loop from and to Machyntlleth in June.

Take on the inaugural MTC Afanc, a one day ultra of about 39.7 miles along National Cycle Route 8 with over 4,200 ft of ascent. Limited entry and GPS tracking make this intimate but demanding race ideal for seasoned ultrarunners.