Trail Running calendar near Thornbury 2026-2027

A 24 hour off road trail event on *5 mile* loops offering Solo, Pair, and Team entries. The site includes camping, parking, caterers, and illuminated routes for night running.

The Beyond Bristol Ultra will take place in Bristol city centre on Saturday 5 June 2027. You can run between 25 and 55 kilometers.

A 5 km obstacle course at Prospect Park in Reading where participants climb, crawl and slide across grassy slopes and woodland. Waves run every 15 minutes and the event is open to people aged 13 and over.

Backyard Ultra at Chilton Manor Farm on 5 June 2027 features a 6706 m loop run each hour until one runner remains, with weekend camping, on route water stations, event camp facilities and medical support.

At Prospect Park in Reading this Race for Life event offers a 10k run as two laps of the 5k course plus a separate 5k option, with grass and woodland terrain and some steep slopes.

A multi distance running event in Bath that features long underground sections through the Devonshire and Combe Down tunnels and a city centre start and finish at Brickfields Park. Races range from 500 m Colourburst to an ultra marathon.

BigSea on the Isle of Purbeck starts and finishes on Knoll Beach and offers Half Marathon, 18 Mile, Marathon and 54k routes across the Purbeck Hills and coastal landmarks. Aid stations provide snacks, water and vegan options and PH 1000 ele..

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.

A multi-distance trail event in the Cotswolds on 12-13 June 2027 based in Cirencester, with route options from 10 km to 100 km. The event offers GPS tracking, marked trails, marquee rest stops, medical support, camping and finisher awards.

A 5k obstacle course at Sandwell Valley Country Park on 12 June 2027 featuring grass, paths and woodland with multiple obstacles. Organised by Cancer Research UK, participants fundraise with a minimum target of £50.

A fully supported non stop 100 mile race along the South Downs Way with 12 aid stations, medical cover and a 30 hour cut off, running from the Winchester area to Eastbourne and featuring significant elevation and mostly trail terrain.

A 50 km non stop trail race along the South Downs Way inside the national park, with four aid stations, full medical support and a 9 hour cut off. The route starts at Matterley Bowl and finishes at Queen Elizabeth Country Park.

A scenic off road race day around Cheddar Gorge and the Mendip Hills with distances from 1 km to a UTMB indexed Marathon and Half Marathon. Marked trails, multiple feed stations and large event medals for 6 km and longer.

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.

A muddy 5k obstacle course around The Common in Southampton where participants climb, crawl and slide through obstacles while raising funds for cancer research. Waves run every 15 minutes and participants must be 13 or older.

An inflatable obstacle fun run in Cardiff on 26 June 2027 with lap based distances from 2.5k to 15k, music zones and giant slides. Participants receive a finisher's medal and a midway water station is provided.

A weekend festival at the Pinkery Centre in Exmoor National Park combining long distance walks, trail runs and shorter family and kids routes with evening talks and social gatherings.

The Race for Life Pretty Muddy Cheltenham will take place in Cheltenham on Saturday 26 June 2027. You can run 5 kilometers.

A point to point half marathon along canal towpaths from Wolverhampton City Centre to Brindley Place in Birmingham. The largely flat course includes a 360 metre tunnel and floating drink stations every three miles.

Race for Life Salisbury at Hudson's Field offers 10k and 5k single-lap routes on mixed surfaces and undulating terrain, with on-site parking, toilets and refreshments. The event is chip-timed and not wheelchair accessible.