Trail Running calendar near Thornbury 2026-2027

Trail races at Moors Valley Country Park and Forest feature a half marathon and a 10K on marked woodland routes with chip timing. The event includes aid stations, limited canicross places, event photography and several eco friendly measures..

A muddy, hilly cross-country event around May Hill in Gloucestershire on 30–31 January 2027, offering a main 7–9 mile route, a longer 14–15 mile Mayhem option, and a canicross category.

A twilight trail run in Hurn Forest with 5 or 10 mile out and back routes. Torches are required, 20% of entry fees go to Forestry England, and basic on-site facilities include an aid station and toilets.

Squirrel Challenge at Daventry Country Park is a six hour timed event on a 3.3 mile off-road loop where participants complete as many laps as they choose. Canicross is permitted and the route passes woods, open grassland and water.

A night race at Westonbirt National Arboretum on 6 February 2027, with scenic routes through tree collections and firm trail-like surfaces. Distances include 5 km and 10 km; tickets are currently sold out.

A two-day Exeter event with a two-lap 13.1 miles half marathon and a 5 miles Riverside run along the Quayside and Riverside Valley Park. Charity places carry minimum fundraising pledges and finishers receive a bespoke medal.

A two day, 66 mile trail ultra along the North Downs Way near Farnham, Surrey on 6 and 7 February 2027. Options include a full package with accommodation and meals or single day entries, with checkpoints and course support provided.

A 12-hour Backyard Ultra near Crickhowell on a 4.167 mile loop split between trail and tarmac. First eleven loops are hourly, the twelfth is a race, with loop medals, a 32-mile ultra medal, and a trophy for the winner.

A 5km and 10km run through Westonbirt Arboretum on 7 February 2027, with firm trail terrain and routes through areas showcasing over 2,500 tree species. The event is family friendly and tickets are currently sold out.

A 17 mile self navigated trail run through scenic East Devon. Runners visit four distinct trig points on a course that starts and ends at the Sidmouth Watersports Hub.

A measured 10 mile road race in Melksham with a route through Lacock, a finisher medal and prizes across age categories. The field is limited to 300 places and entries close on 1 January 2027 or earlier if full.

A trail event in Dalwood on 14 February 2027 offering 10 miles, 5 km and 3 km routes across hilly, muddy countryside with river crossings. The event is licenced by the Trail Running Association and follows UK Athletics rules.

A self navigation coastal trail on the South West Coast Path around Portland offering Marathon, Half Marathon and 10k options with mandatory kit requirements and entries capped at 500.

The Love Run at Pengethley Manor offers chosen distances from 5k to Ultra on a tough off‑road course with a seven hour time limit. Virtual entries and several medal options are available, and the event is open to walkers and runners.

Two Tunnels in Bath on 21 February 2027 offers many distances and runs through two long restored, lit and surfaced railway tunnels under the city, with start and finish at Brickfields Park and a charity contribution to Sustrans.

A 7 hour Time Challenge at Dare Valley Country Park on 28 February 2027 offering flexible distances from 3 km up to ultra and 50 km, with medals, distance pins, goody bags and on-course aid at each lap.

Trail ultramarathon in the Black Mountains based in Crickhowell offering 10, 20 and 40 mile routes with marked courses and GPX files. Canicross friendly; mandatory kit and entry via SiEntries with set fees and age limits.

A winter ultra around Bristol along the Community Forest Path, offered as a 45-mile full loop or 30-mile partial loop run anti-clockwise. The event is self-navigated with GPX files, checkpoints, chip timing and mandatory kit requirements.

A winter ultra around Bristol's Community Forest Path offering 45 or 30 mile anti clockwise routes. Self navigated with GPX support and pacers, timed checkpoints, cup free aid stations and bespoke finisher medal and technical tee.

The Imber Ultra is an annual trail run of just over 33 miles organised by Avon Valley Runners and the Rotary Club of Westbury, with route details, checkpoints, results and photos provided by the organisers.