Trail Running Calendar United Kingdom 2025-2026

The PFW Running - Brockholes Bimble is a trail running event held at the scenic Brockholes Nature Reserve in Preston, covering 250 acres of wildlife habitat including lakes, the River Ribble, and woodlands. The event offers multiple distances: 10K (one lap plus a short out-and-back), half marathon (..

The Westcountry Ultra Hilly 50 is a challenging 50-mile ultramarathon set in the stunning landscapes of Somerset, England. Known for its breathtaking scenery, the course features significant elevation changes, including steep climbs and descents through ancient woodlands, rugged coastlines, and pict..

The Collingbourne Races feature a half marathon and a 10km run, both set in the picturesque Collingbourne woods in Ludgershall. This off-road event offers a mix of bridle tracks, woodland paths, and single-track running, making it suitable for runners of all levels. Participants can expect ample par..

The TEC Brecon Beacons will take place in Brecon on Saturday 10 May 2025. You can run between 10 and 53 kilometers.

The Kintyre Way Ultra is a scenic trail-running event held in the Kintyre peninsula of Scotland, featuring a 35-mile ultra marathon from Machrihanish to Campbeltown. The course offers varied terrain including hill paths, forestry tracks, beaches, and seaside rocks, with stunning views of the sea and..

Freedom Racing - KVK is a unique vertical ascent race taking place at Perranporth Airfield in Cornwall. This event, known as "A Kilometer of Vert in Kernow," challenges participants to complete two laps of a specially designed course, achieving a total ascent of 1000 meters over a distance of 15 mil..

The Eastnor Castle Backyard event, scheduled for May 10, 2025, features both solo and relay running options. Participants can choose between an 8-hour race covering 33.3 miles or a 12-hour race covering 50 miles, both set on a 4.167-mile course. Solo runners will start new laps on the hour, while re..

The Semington Slog 10K is a community-focused running event taking place on May 10, 2025, starting and finishing at St Georges School in Semington. Participants can choose between a 10K route that winds through the village and along the scenic Kennet and Avon Canal towpath, or a shorter 2K loop arou..

The RAF Spadeadam Blue Streak Trail Run is a unique running event held at RAF Spadeadam, the historic test centre for the Blue Streak rocket in the UK. Scheduled for May 10, 2025, the trail run offers two distances: 14 miles and 11 kilometers, both open to participants aged 16 and over. The course f..

The Preseli Beast is a challenging 24-mile off-road and fell running race set in the scenic Preseli Hills of North Pembrokeshire, West Wales. Starting and finishing in the lively village of Maenclochog, the course features approximately 4,600 feet of ascent, including steep climbs, wooded paths, and..

Cadair X is a challenging half marathon event organized by WESWIMRUN, set against the stunning backdrop of Cadair Idris in Wales. The route spans 13.1 miles, featuring a significant elevation gain of 1165 meters, and comprises 65% trail, 25% mountain path, and 10% tarmac. Participants will navigate..

The NAV4 LiAD Recce from Caldbeck to Threlkeld is a guided recce event hosted by Joe Faulkner and the NAV4 team on behalf of Durty Events. Covering a challenging 12-mile section of the Lakes in a Day route, participants navigate remote, rough fell terrain including the River Caldew ford, the ascent..

The Formartine & Buchan Railway Ultra is a challenging ultra marathon event taking place on the Formartine & Buchan railway line, specifically between Maud station and Auchnagatt village hall. Participants can choose to compete in either a 12-hour or 6-hour format, with the goal of covering as much..

Endurancelife's Exmoor event offers challenging trail running races set in the stunning and rugged terrain of Exmoor National Park, located in the lesser-known western area of the park. The event features four distances: 10K (6.3 miles), half marathon (13.5 miles), marathon (26.7 miles), and ultra m..

London 100 is an ultramarathon event organized by Camino Ultra, based in London. The race starts at the Queen Mothers Sports Centre in Pimlico, London. It offers a challenging 100-mile distance for ultrarunners seeking to push their limits.The event is part of a series of ultramarathon races hosted..

The Afan Chase Trail Races, scheduled for May 10, 2025, offer an exhilarating trail running experience through the stunning Afan and Glyncorrwg forests. Participants can choose between a half marathon and a 10k race, both featuring diverse terrains including forest paths and single tracks. The route..

The Storth Stampede will take place in Storth on Saturday 10 May 2025.

The Pendle Cloughs Fell Race is a challenging 14-mile (22.5 km) fell running event held near Clitheroe, Lancashire, with a demanding 1250m (4101 ft) climb. Starting from Downham Village Hall, the course features steep climbs, rough moorland, and few paths, testing runners' navigation and endurance...

The Brighton Backyard Ultra is an endurance running event held in Stanmer Park, Brighton, UK. Participants run a 4-mile (6.7 km) out-and-back loop every hour on the hour, continuing until only one runner remains. Each lap must be completed within 60 minutes, with the remaining time used for rest.The..

The Fairfield Horseshoe is a challenging 9-mile (14.5 km) fell race held near Ambleside, Great Britain, starting and finishing at Rydal Hall. The course features a demanding 2999 ft (914 m) of climbing, following a clockwise route around the Fairfield Horseshoe ridge, with key checkpoints at Nab Sca..