Trail Running calendar near Cardiff 2025-2026

The Cardiff Trail 10k is an exciting running event set against the stunning backdrop of Castell Coch. Scheduled for January 18, 2026, this newly introduced race offers participants a unique blend of competition and natural beauty, making it..

Take on the Riverbank Rollick a scenic 9.6 mile off road trail run along riverside paths, through woodland and a stream crossing. Earn a metal finisher medal that links to two other Thornbury Running Club races for a collectable series.

Saturn Running's "Spice Up Your Run - Wales" is a fun and inclusive running event held at Dare Valley Country Park in Aberdare. Participants can walk or run a minimum of 3km, with options to complete laps of approximately 7km each, allowing..

Experience wintry Dartmoor on Pagan Trails, a midwinter run from Chagford that passes stone circles and ancient sites. Choose a demanding marathon of 28 miles and 1500 m ascent or a half of 14 miles and 700 m ascent and bring winter kit.

Join the social, self navigated Blackdown Beast, a scenic cross country run from Dunkeswell Airfield supporting Macmillan Cancer Support. Expect village hall and pub refreshment stops, stunning hills and 10 or 16 mile options.

Run the Pagan Midwinter Marathon or Half on 24 January 2026 from Chagford across north Dartmoor, visiting stone circles and ancient pagan sites. Expect raw midwinter terrain and big climbs for a memorable off road challenge.

Experience iconic views of Stonehenge on the Stonehenge Stomp, a friendly walking event that also welcomes runners. Choose routes from 5 km to 40 km and book online when entry opens on 1 November 2025 as places are limited.

Choose the Moors Valley Wildwood Trail Half Marathon or 10K through scenic woodland and muddy gravel trails where deer and birds of prey may appear. Chip timed, eco friendly event with aid stations and a wooden finisher medal.

Tackle scenic trails on the Long Mynd from Carding Mill Valley with a choice of a half marathon or a two lap full marathon. Enjoy well stocked aid stations, friendly marshals and a post race cake competition for all.

Event overview DirtRun Dudmaston 10k takes place on 1 February 2026 at Comer Woods, part of Dudmaston Estate. The event uses an off-road route around tracks and trails in Comer Woods and covers 10 km. All finishers receive a medal and finis..

Enjoy a friendly timed trail run through Haldon Forest in Devon on Sunday 1 February 2026, with 2.5K, 5K and 10K options and canicross welcome. Fully marked course, water points and medals for all finishers make it a relaxed, fun challenge.

The Westonbirt Arboretum Winter Night Race is a unique running event set in the stunning National Arboretum, featuring over 2,500 tree species. Participants can choose between 5km and 10km routes, which offer a beautiful and varied landscap..

The Portland Coastal Marathon is an ultra trail running event held at the Weymouth and Portland National Sailing Academy in Portland, UK. Scheduled for February 8, 2026, it offers a full marathon, half marathon, and 10k distances, catering..

Enjoy a winter run through Westonbirt Arboretum's stunning tree collections on solid underfoot trail style paths. Distances of 5 km and 10 km suit all paces. Tickets are sold out.

Run a rugged 27 km off road loop from Sidmouth with about 3999 ft of climbing as you visit four trig points in order. Enjoy coastal trails, great camaraderie and support Cardiac Risk in the Young.

Take on a moonlit trail across open moorland and local paths near South Brent, with 5 or 9 mile options. Enjoy rugged climbs, moor crossings and riverside views in this atmospheric night race organized by Wild Running.

Trails & Tarmac Backyard Ultra Winter sends runners on a scenic 4.17 mile loop in the Black Mountains, blending trail and tarmac with a touch of climbing. Complete a loop each hour; reach 32 miles for a medal and outlast everyone to win.

Take on rolling hills, muddy trails and river crossings at Dalwood 3 Hills near Axminster on 15 Feb 2026, with 10 mile, 5 km and family friendly 3 km options. Village hall facilities and medical cover provided. Bring a cup for water.

Take on the Dartmoor Winter Traverse, a fully supported challenge across remote moorland from south to north, open to runners and walkers. Choose 30 km or 50 km and enjoy guided navigation and course support through dramatic winter terrain.

Run two scenic laps around Kinver Edge and the Rock Houses for a challenging 9.5 km off road experience on 22 Feb 2026. Capped at 100 runners, this intimate race awards medals and finish goodies but entries are closed.