Trail Running calendar near Thornbury 2026-2027

We have found 520 Trailruns within 80 miles of Thornbury. See below where and when you can find the races.

Experience a 10k run through the National Trust Brockhampton Estate. This limited entry event features a hilly course with views and welcomes cani cross participants.

Race for Life Reading at Prospect Park on 07 Jun 2026 offers 3k, 5k and a 10k double lap on mainly grassy, undulating terrain with woodland sections and chip timing. A minimum fundraising target of £50 applies.

A Category A fell race of about 18 km with 1200 m ascent around four fan summits between Merthyr and Brecon. The route is clockwise this year and requires map and compass navigation and full fell kit.

A midweek summer evening *10 km* trail race through Moors Valley Country Park & Forest near Ringwood, featuring marked woodland trails, chip timing, aid stations and eco-friendly measures. Canicross options and on-site paid parking are avai..

A point-to-point 15 mile trail race along the Offa's Dyke footpath between Hay-on-Wye and Kington with three water stations, relay options at mid-race handover points, and age-group prizes.

A 100 mile non stop foot race along the South Downs Way from near Winchester to Eastbourne, with 12 aid stations, full medical support and a 30 hour cut off. Mandatory kit, pacing and crew rules apply and qualification is required.

A 50 km non-stop trail race on 13 June 2026 across the South Downs from Matterley Bowl to Queen Elizabeth Country Park. The route gains about 4000 ft, is fully marked, supported by four aid stations and has a nine hour cutoff.

A multi-distance trail event in the Cotswolds on 13-14 June 2026 centered at Cirencester basecamp, offering strong route support, GPS tracking, regular rest stops, medical cover, camping and finishers awards.

A trail running event at Wilkswood Farm near Swanage with 23 km, 13 km and 7 km routes along the Jurassic Coast. The courses include rocky technical sections, outposts on the longer routes and a reusable cup policy.

A community 5k and 10k at Neroche Primary School with chip timing and countryside multi-terrain routes. Proceeds support the Neroche School PFA and a children’s fun run is held for a small donation.

A long-standing Green Events race in Llanwrtyd Wells where runners compete directly with horses over mountainous terrain, timed electronically. The event has enforced cut-offs and an escalating jackpot for any runner who beats the first hor..

Pretty Muddy 5k at Sandwell Valley Country Park on 13 June 2026 is a muddy obstacle course with staggered wave starts and a minimum fundraising target. Facilities include toilets and refreshments but it is not wheelchair accessible.

An evening trail run at Bodenham Arboretum offering 5km or 10km routes over multi-terrain, raising funds for local charities with limited online-only entries and basic on-site facilities.

A fell race held since 1986 at The Whistle Inn near Garn yr Erw, Blaenavon, with an 8 km/300 m ascent option and a 5/984 ft option. Entries are accepted on the day or online and runners should carry appropriate safety kit.

A backyard ultra at Breakheart Quarry in the Cotswolds where runners repeat a 6706 m loop every hour until one person remains. Camping and on-site facilities are provided; early bird entry is £75.

Trail races on 14 June 2026 in Cheddar Gorge and the Mendip Hills offer distances from 1 km to Marathon plus an Omnium multi event. Courses include marked trails, varied terrain, frequent feed stations and event medals for 6 km and longer.

Trail races in Kingsclere, Hampshire on Sunday 14 June 2026 with marathon, half marathon and 10k on clearly marked single-lap off-road courses. Marshals are stationed along the routes and parking is available nearby.

A 10 km trail race on the private Lulworth Estate in south Dorset, combining a village fête atmosphere with a scenic, hilly course on chalk downland and woodland paths. Proceeds benefit the Coombe Keynes Trust.

Run as many 3.28 mile laps as you wish along the scenic Stroud Waterways canal. This flexible timed event caters to all distances from 5k to ultra marathon with a seven hour time limit and a relaxed start window.

WildRox is a 2027 event at Huntley Estate in Gloucestershire with eight physical strength and endurance tests. Each test is followed by a 1 km off road run and finishers receive an official time and a medal.

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