Trail Running calendar near Thornbury 2025-2026

We have found 356 Trailruns within 80 miles of Thornbury. See below where and when you can find the races.

Join the Ross on Wye Riverbank Run on 6 September 2026 for scenic multi terrain 5k, 10k and a family fun 500m along the River Wye. Flat, fast course, chip timing and medals for all finishers make it perfect for racers and families alike.

Join the Carnival Chase on 6 Sep in Warminster Town Park for 10K, 3K and a 1.2K family, wheelchair and buggy fun run. Enjoy a scenic country lane course by the boating lake, medals for all and a lively event village.

Take on the Stretton Skyline, a scenic yet demanding 30.5 km fell race around Church Stretton with 1357 m of climb and panoramic Shropshire Hills views. Pre entry only, finishers enjoy a tasty goody bag.

The Beast is a challenging trail race of around 13 miles through Corfe Castle Common, with undulating terrain and stunning coastal path views toward Worth Matravers. Enjoy water stations on course and a unique finisher t shirt.

Woodchester Trail Challenge on 6 September 2026 is a demanding eight mile hilly woodland run through Woodchester Park with a new start and route. Expect a metal finisher medal and a strict two hour cut off.

Tackle The Relentless in Bridgend, a tough looped ultra on 18 September 2026 offering 50 miles (5 loops) or 100 miles (10 loops) with big support, crew zones and drop bag access each lap. Limited to 25 runners per distance so book early.

Tackle 50 miles through the rolling Chiltern Hills in a single loop, with about 1700 m of climb across 80% trail. Fully marked and supported by five aid stations with a 13 hour time limit, this scenic ultra promises tough mileage and big vi..

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Run the Cotswold Half Way is a 47 mile nonstop trail race along the Cotswold Way from Chipping Campden to Painswick, offering classic rolling countryside and a true ultra challenge. TRA licensed and run under UK Athletics rules, the event s..

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Tackle the iconic Cotswold Way Century, a 102 mile single stage trail from Chipping Campden to Bath across rolling hills and varied terrain. You have 32 hours to earn a buckle while enjoying live tracking, aid stations and full GPX support.

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Salmon Run on 19 September 2026 is a scenic community run from Exmouth to Dulverton offering a 43 mile ultra or relay sections for teams. Celebrate river conservation with music, local activities and a medal for all finishers.

Race the Bradenham Blast through beech woodland and the UK's only arable nature reserve in the Chiltern Hills, with testing climbs and flowing descents. Pick 5 km, 10 km or half marathon and receive an eco medal and a tree planted for you.

BigSky Trails on 20 Sept 2026 invites runners to airy high New Forest routes as the finale of the Classic Element series. Pick 18 miles, marathon or 50k ultramarathon across open plains and winding woods on fully marked, marshalled routes.

Looped trail running at Avon Tyrrell in the New Forest, circling a Grade I listed manor on technical forest trails that blend scenery and challenge. Pick your distance on the day from 5K to ultramarathon and earn a finisher medal.

Run the Pumsaint trail half marathon in Llanwrda, a scenic, hilly route through the Cothi valley that rewards effort with great views. Held each September from Pumsaint Village Hall, it is a perfect challenge for trail lovers.

Discover the Chiltern 50 Ultra Challenge from Henley for scenic looped routes through Chilterns countryside. Walk, jog or run solo or with a team over 10 km, 25 km or 50 km with basecamp support, finisher medal and meal.

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Run the stunning Gower Coastal Trail Races on 26 September 2026, with 23, 34 or 50 mile options along dramatic cliffs, beaches and charming fishing villages. Chip timing, checkpoints and post race facilities make this a must do coastal chal..

Enjoy scenic off road runs or walks around Fleet Lagoon in Dorset, with 10k, half marathon, marathon, a new four person marathon relay and a canicross category. Trails are waymarked and the event raises funds for local charities.

Race scenic trails at Margam Country Park with castle views on a 5K or 10K loop. Fully marked and marshalled with chip timing, water stations and a finisher medal, ideal for new and experienced runners.

Run through ancient woodland in the Forest of Dean at the Autumn Half Marathon starting and finishing at Speech House. This scenic 13 mile trail on well marked tracks supports local charities and awards a medal to every finisher.

Race on the Chase features marathon, half marathon and 10k routes across rolling chalk downland, woodland and ancient sites in Martin Down, finishing at Salisbury Racecourse. Every finisher gets a medal and the top three men and women win t..