Trail Running Calendar United Kingdom 2025-2026

Experience a magical night trail run through the atmospheric Cowdray Estate, passing the iconic ruins under the stars. Choose kids and adult distances from 3 km to 10 km for a fun evening in the Run the Seasons Winter series.

Take on a hilly 10 km trail through scenic Tollymore Forest Park at the NIMRA Run For Rescue on 6 Dec 2025. Support Mourne Mountain Rescue with a voluntary donation while enjoying a marked and marshalled course.

Take on the Really Wild Boar fell race on Sat 6 Dec 2025 in the York Dales, a 9 km challenge with 450 m of climb through classic fell terrain. On the day entry is £10 and includes soup and a roll. Register at the Fat Lamb Country Inn.

Join the Bobble Wobble Run at Hardy Farm for a relaxed off road towpath run around Chorlton Water Park with flexible rock up starts. Finishers get a bobble hat and medal while the race supports Flock and Fluff charity.

Support Hospice of St Francis at the Wild Christmas Charity Run, a guided 8km trail or 4km family walk from Church Farm Cafe. Enjoy a mince pie with entry, optional fancy dress and limited places so book early.

Take on the Hurtwood 50k through the Surrey Hills on 7 December 2025, a fully signed trail ultra with checkpoints and a 10 hour time limit. Entries open 12 December 2024 and the event welcomes fast walkers and first time ultra runners.

Run a scenic 10 mile trail around Grafham Water, weaving through woodland, Dragonfly Pond and Sanctuary Bay before a final mile along the dam wall. Canicross runs in a separate wave so you can bring your dog on a lead.

Join Bauble Bimble at Ferry Meadows for a fun multi lap challenge with four and six hour session options on a scenic 5.3 km country park loop. Bring your own bottle for refills and enjoy a bespoke finisher medal and relaxed lap format.

Tackle the Cardington Cracker on 7 December, a classic Shropshire fell race across 14.5 km with big climbs and stunning views. Rugged trails and village camaraderie make this a memorable winter challenge but places are limited so pre entry..

The Mytholmroyd Fell Race on Sunday 7 December 2025 offers a tough 6 mile route with 500 m ascent across classic Pennine terrain near Hebden Bridge. Pre entry and full FRA kit are required.

Sea 2 Summit Offa's Dyke is a scenic yet tough trail race from Prestatyn along the Offa's Dyke National Trail, offering Half Marathon, Full Marathon and a 33 mile Ultra. Electronically timed with a finisher medal, it promises big views and..

Run the New Forest Xmas Trails in New Forest National Park on runnable but testing single lap routes through heathland and woodland from Holmesly Campsite, Bransgore. Choose 15km, 30km, marathon or 50km and plant a tree instead of a medal.

Celebrate the season at the Chasewater Christmas Pudding Dash at Chasewater Country Park, a festive 10k, 5k and junior race around the reservoir on mostly flat trails. Enjoy medals, photos and fancy dress prizes while supporting Shelter.

The Mince Pie 10 is a festive 10 mile mixed terrain run in Peacehaven, with fancy dress, seasonal music and mince pies at the finish. Fun, muddy miles and a recycled medal await while supporting local children's and hospice charities.

Race the Trifarm Winter 10k, the final round of a four event trail series at Trifarm near Boreham. Enjoy a mostly off road clockwise route away from the river and a championship deciding atmosphere with just 50 places available.

Join the WILD DEER running session at Land of Oak & Iron on 7 December 2025 for a 75 minute coached workout suitable for all abilities. Expect interval work, hill efforts and varied running over 5 to 7 miles with a friendly group vibe.

Lakeland Paws Grizedale Growl on 7 December 2025 in Grizedale Forest offers scenic 5K and 10K runs on forest roads and trails with views over Coniston Water. Chip timed and dog friendly with up to two dogs per runner, event is full.

Join the inaugural Allsorts Tinkley Gate Santa Dash for a festive family friendly 5 km trail run at Woodchester, with costumes and a post race cafe. Dress as Santa or an elf to support local charity Allsorts; dogs on short leashes welcome.

Join a scenic 10 km loop around Rye Harbour Nature Reserve on 7 December 2025, mostly on trails and fully marshalled. Limited to 70 runners, the Winchelsea event finishes with tea and cake at the community centre.

Run around Glamis Castle on 7 December 2025 on scenic woodland and parkland trails, with a 1 mile family run plus 5 mile and 10 mile races. Dogs are welcome in the 5 and 10 mile events and all finishers receive a bespoke medal and festive t..