Trail Running calendar near Bristol 2025-2026

The Run the Wild Half Marathon - Autumn Edition is a 13-mile (21.1 km) trail running event set in the scenic Chiltern Hills, just 40 minutes northwest of London. Featuring rolling hills with around 300m of ascent, the course offers stunning chalk hills and woodland terrain. Designed for all abilitie..

The Barrows and Downs is a trail running event featuring a marathon and half marathon set in the historic southern area of Salisbury Plain, Wiltshire. Participants run among ancient barrows dating back to 3500 BC, enjoying scenic views of the Wiltshire Downs. Both race routes start and finish at Til..

The Marlow Donkey is a challenge event organized by the Thames Valley LDWA, offering participants the choice of two routes: 16 miles and 25 miles through the scenic Chiltern Hills. The event welcomes both walkers and runners, providing basic refreshments along the route and a simple meal at the fini..

The Frieth Hilly 5km and 10km runs are exciting mixed-terrain races set in the picturesque Chiltern Hills, located between Marlow and Henley-on-Thames. Participants can expect a challenging course that features winding woodland paths and scenic country roads, offering stunning views throughout the r..

The South Downs Way Ultra Run is a 30-mile trail running event starting and finishing at Harting Down in West Sussex. The course showcases some of the best sections of the South Downs Way and nearby areas, including Beacon Hill, Cocking Down, and the ancient woodlands of Kingley Vale, known for its..

The Maverick Jurassic Coast is a challenging trail running event held in Corfe Castle, Dorset, along the stunning Isle of Purbeck and part of the famous Jurassic Coast. Scheduled for October 18, 2025, it offers four distances: Ultra (101 km), Long (54 km), Middle (24 km), and Short (12 km). The Ultr..

The Centurion Autumn 100 is a challenging 100-mile trail race held in Goring and Streatley, England, along the River Thames. The course features four 25-mile out-and-back sections utilizing the Thames Path and Ridgeway National Trails, forming a cross-shaped route. Runners experience a mix of flat,..

The Forest of Dean Ultra Marathon will take place in Coleford on Saturday 18 October 2025. You can run 34 miles.

The Keynsham Dandy is an off-road running race organized by Town and Country Harriers (TACH) in the Bristol area. The event covers approximately 12.5 miles, starting in Keynsham and featuring a scenic route that includes the revival of the Compton Dando path, complete with a stream crossing. The rac..

The Giddy Horse Backyard event is a unique running experience taking place at Chepstow Racecourse in Piercefield Park. Scheduled for October 25, 2025, it features various race formats including 8-hour, 12-hour, 24-hour, and relay options, all set on a scenic 4.167-mile loop that combines woodland, p..

The Worcester Ring Run is an exciting 23-mile running event taking place on October 25, 2025, starting from Droitwich Rugby Club. This scenic route features a clockwise loop along the Droitwich Canal and the Worcester & Birmingham Canal, offering a mostly traffic-free experience. Participants can en..

The Thames Trail Ultra is a challenging 47-mile point-to-point ultra-marathon along England’s longest river, the Thames. Starting near Oxford in Iffley and finishing in Henley-on-Thames, the course follows the scenic Thames Path and Ridgeway National Trails, featuring a mix of cross-country trails,..

The Giddy Horse Half Marathon, Trail, & Steeplechase Obstacle Course Races is an exciting running event taking place on October 26, 2025, at Chepstow Racecourse in the UK. Participants can choose from various race options, including a half marathon, 8-mile and 4-mile trail races, and steeplechase ob..

The Black Beacon Mountain Trail Races are challenging long-distance running events held in the Bannau Brycheiniog (Brecon Beacons) National Park, South Wales. The races are linear, crossing from north to south, finishing in Pontneddfechen. Participants can choose from four distances: 21 miles, 50 ki..

The Haldon Halloween Twilight Run takes place in Haldon Forest near Exeter, Great Britain, offering a festive running experience on November 1, 2025. Participants can choose from three distances: a 2.5 km fun run, 5 km, and 10 km races, including Canicross options for dog runners. The event features..

The Guided Run - Petersfield 10k will take place in Petersfield on Saturday 1 November 2025. You can run 10 kilometers.

The OTT Ultra Marathon is a 30-mile trail race set in the scenic Brecon Beacons, starting from Merthyr Tydfil. The course features technical trails, including a climb to Pen y Fan, the highest peak in South Wales, and passes through reservoirs and forest tracks, offering stunning views. The race inc..

The Dorset Hillfort Ultra is a scenic 38-mile running event set in the picturesque West Dorset, featuring a challenging course with approximately 1,300 meters of ascent. Participants will traverse from one ancient hillfort to another, enjoying stunning views of Lyme Bay and the Jurassic Coast. The r..

Big Night Out Winchester is an exciting night-time trail running event set in the scenic surroundings of Winchester, Hampshire. Participants can choose between a 22km or 12km course, both illuminated by headtorches as they navigate the trails and pathways. The event features a fully marked route wit..

The Beacons Ultra is a thrilling running event featuring three race distances: a 49-mile ultra, a 26-mile marathon, and a 13-mile half marathon. Set in the picturesque town of Talybont-On-Usk, nestled in the Brecon Beacons, the event showcases a mix of trails, mountains, canals, and roads. Participa..