Trail Running calendar near Semington 2026-2027

A Star Wars 50th Anniversary weekend on 5 and 6 June 2027 at Caldecotte, Milton Keynes featuring marathon and half marathon races around Caldecotte Lake, unique finisher medals, on-course water and toilets, and time limits for each race.

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 5k obstacle course at Royal Windsor Racecourse with mud obstacles to climb, crawl and slide, mixed tarmac and grass surfaces, staggered wave starts and a minimum age of 13. Earlybird entry prices and a fundraising target apply.

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.

A 5k muddy obstacle course at Willen Lake with staggered wave starts, on-site toilets and parking, blue badge parking nearby, and a fundraising target of £50. The event is not wheelchair accessible.

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.

A 24-hour relay at Wasing Park with solo and team entries running repeated 8 km laps, weekend camping, Event Village facilities, and official timing.

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 forest trail event at Wendover Woods offering a hilly multi-lap 10 km course with Half Marathon, 10k and Junior Run options, on-site facilities for spectators, route maps and GPX files, and medals plus free photos for participants.

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.

Trail event based at Cirencester with supported 10 km to 100 km options, regular rest stops, medical teams, GPS tracking and basecamp accommodation.

A 100 mile nonstop race along the South Downs Way from Matterley Bowl near Winchester to Eastbourne, with 12 aid stations, medical support and a 30 hour cut off.

A non-stop 50 km trail ultra along the South Downs Way with about 1150 m climb, four aid stations, full medical cover and a nine hour cut off.

A 15-mile point-to-point trail race along the Offa’s Dyke footpath between Hay-on-Wye and Kington, featuring three water stations, two official cut off points, a relay option for two or three runners, baggage transport and on-course safety..

A muddy 5k obstacle course at Cassiobury Park where participants climb, crawl and slide through timed waves while raising funds for cancer research.

A community Race for Life event at Cassiobury Park on 12 June 2027 offering 3k, 5k and a 10k double lap course with accessible facilities.

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.