Trail Running calendar near Cardiff 2025-2026

Run a scenic 5 mile winter trail around Bromsgrove, through woodland valleys and quiet lanes, starting and finishing at the Park Gate Inn. Expect undulating, muddy terrain, friendly marshals and a finisher medal.

Explore Afan Forest on hand picked trails with 5K and 10K options at the RTT Afan Forest run. Fully marked and marshalled courses, chip timing and a finisher medal make this a rewarding, well organised trail day for all abilities.

Take on the Salisbury Plain Winter Edition on 6 December for a scenic, fully marked trail challenge over Half or Marathon distances. Enjoy well stocked aid stations, marshals and finisher medals as you tackle crisp winter terrain.

Take on the Secret Santa trail series on 6 December in Cwmdu, Black Mountains with a festive half marathon and shorter trail options. Tackle technical rocky and boggy single track trails with full support and handcrafted slate trophies.

Pick 14 km, 10 miles or a half marathon from Cwmdu across the Black Mountains with rocky single track, boggy moorland and stunning views. Well marked with checkpoints and medical cover, this scenic but testing trail welcomes dogs on leads.

Join the Otterton Reindeer Run for a festive 3 km fun run or a scenic 10 km multi terrain route through Otter Valley. A village event that raises funds for local projects with fancy dress prizes and post race treats.

The Allsorts Tinkley Gate Santa Dash is a festive, family-friendly running event held at the scenic National Trust Tinkley Gate site in Woodchester, Gloucestershire. Participants can choose between a 5km off-road trail or a shorter 2.5km ro..

Join the New Forest Xmas Trails on 7 December at Holmesly Campsite for fully marked off road laps through heathland and woodland, with distances from 15K to a 50K ultra. Enjoy a festive trail vibe and the option to plant a tree instead of t..

Explore the sand dunes and complex contours of Braunton Burrows at a colour coded orienteering on Sunday 7 December 2025, part of the Devon League. Courses for all abilities and car sharing available.

Take on a scenic 14.5 km fell race with 793 m of ascent around Cardington, organised by Telford Athletic Club. Entries are pre registration only and limited, so come prepared for wet underfoot and bring good grip and required FRA kit.

Part of the 12 Days of Christmas, Partridge in a Pear Tree on 7 December 2025 offers offroad laps at Pengethley Manor through vineyards and a cheeky hill. Choose 5k to ultra, walkers and runners welcome with a unique finisher medal.

Join the 2 Turtle Doves at Pengethley Manor on 8 December 2025 and choose distances from 5k to ultra with a 7 hour limit. Off road 2.5 km laps wind through vineyards and include a hill each lap for a scenic challenge.

Take on the 5 Golden Rings Run on 11 Dec 2025 at Pengethley Manor near Ross on Wye for a tough off road course through vineyards with a climb on every lap. Distances from 5k to ultra, walk or run, or join virtually for a verified medal.

Brave the 6 Geese a laying Run on 12 December 2025 at Pengethley Manor, Ross on Wye. Choose 5k, 10k, half, marathon or ultra across a very tough off road course with a hill each lap and scenic vineyard views. Walkers welcome.

Take on 7 Swans a Swimming at Pengethley Manor: complete your chosen distance in 7 hours on a 2.5 km off road lap that climbs and winds through vineyards. Walkers and runners welcome and a flexible virtual option is available worldwide.

Run the Celtic Trail Races around Dare Valley Country Park, with forest trails, sharp climbs, river crossings and sweeping Brecon Beacons views. Choose from 34, 26 or 13 mile routes and finish back at Dare Valley.

Tackle muddy trails and dramatic climbs at the Mortimer Forest Trail Race on 14 December 2025. Choose a testing 10 mile or a shorter 4 mile route over forest paths and High Vinnalls with panoramic views across the Welsh Marches.

Tackle mud, hills and panoramic views at the Mortimer Forest Trail Race with a rugged 10 mile route or a shorter 4 mile option. The full course includes the Big Dippers, a climb to High Vinnalls and a downhill finish over the Welsh Marches.

Join 8 Maids a Milking on 14 Dec at Pengethley Manor, Ross on Wye for a festive offroad run through vineyards and rolling hills. Choose 5k to ultra and finish within a friendly 7 hour limit; walkers and runners welcome.

Take on the 12 Drummers Drumming Run at Pengethley Manor, an off road loop through vineyards and manor grounds with tough hills. Distances from 5k to ultra welcome runners and walkers, with virtual entries and medals available.