Bristol
Trail Running Calendar near Bristol 2026-2027
Explore the top trail runs near Bristol for 2026-2027! We've gathered 102 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
May 2027
A trail marathon around Cardiff with about 1,300 m of climbing, mixed off-road terrain, partial self-navigation, checkpoints and support during the Radyr and Morganstown Festival.
Four waymarked trail races around Stroud and the Cotswold hills on 9 May 2027, from an 11K to an Ultra 40, with checkpoints and downloadable route files.
A community run at Dilton Marsh offering multi terrain 10K, 3K and 1/2K courses, village fundraising, prizes and medals for all finishers.
A 10k trail run at Symonds Yat with riverside views and a notable final one kilometre climb. The mostly off road course includes long gravel firetracks and on site coffee and hot food.
Inflatable obstacle-course event in Bristol on 22 May 2027 offering 2.5 km to 15 km options, music zones, hydration stations and a finisher medal.
Altered Backyard Ultra at Tockington Manor on 29 May 2027 with a 4.167 mile loop each hour, capped at 30 loops and a fastest lap finish if runners remain.
A multi terrain 11K run around Bratton supporting the Jubilee Hall with age category prizes, water stations, and a 200 runner limit.
June 2027
Races in Bath that run through two restored tunnels on a shared use path, with distances from 500m Colourburst to an ultra marathon.
A roughly 6 kilometre mixed-surface race through Blaise Castle Estate in Bristol, held annually in early June. The event has individual and team prizes, a minimum age of 16, and facilities based around the clubhouse.
A backyard ultra at Breakheart Quarry where runners repeat a 6706 metre loop every hour until one person remains; the event includes camping, marked trails and on course support in the Cotswold countryside.
An off-road race series around Cheddar Gorge and the Mendip Hills with distances from 1 km to marathon and an Omnium option; half and marathon hold UTMB index status.
Timed run along a 3.28 mile out and back canal route in Stroud with flexible starts, multiple distance options and a seven hour time limit.
A Pretty Muddy 5k at The Downs in Bristol with grass start and finish, mixed terrain and obstacles to climb, crawl and slide. Staggered wave starts apply and the event supports Cancer Research UK with a minimum fundraising target.
An inflatable obstacle-course fun run at Heath Park Cardiff on 26 June 2027 with lap-based distances from 2.5k to 15k and giant inflatable obstacles.
July 2027
A mud run and obstacle race at Huntley Estate featuring climbs, crawls, muddy swamps and a chip timed 8 to 10 km course, with bespoke medal and event t-shirt for participants.
Flat races along former railway and riverside paths through the Wye Valley, featuring long tunnel sections, multiple feed stations and a choice of fun runs, 10km, half and marathon.
An urban navigation challenge in Cardiff where participants are blindfolded, dropped at an undisclosed location and must return across 6, 10 or 15 miles without maps or GPS.
Timed multi-lap event on a 3.28 mile out and back along Stroud Waterways offering distances from 5 km to ultra with a seven hour limit and a bespoke finishers medal.