Trail Running Calendar United Kingdom 2025-2026

Welcome to the most comprehensive guide to trail races in the UK for 2025-2026! Our curated list features an impressive 1279 trail runs across the enchanting landscapes of Scotland, and Wales. From the iconic trails of London's green outskirts to the rugged terrains near Birmingham, from Glasgow's scenic paths to Liverpool's historic routes, we've got every trail enthusiast covered.

Whether you're a seasoned trail runner looking for your next challenge or a newbie eager to explore the world of off-road running, our calendar is your one-stop solution. Dive deep into the details by searching for a specific location or simply browse through to discover new trail runs. Looking for all running events? Check out the complete Running Calendar United Kingdom on running.life.

G3 no.3 is a running event in Guildford, Surrey, hosted by the G3 Series. The start line and event car park are at Newlands Corner, Drove Road. Runners can choose between 10km and 15km distances, with entry fees of £27 and £31 respectively (plus service charges).Bundles offer discounts for multiple..

South Pennine 24 is a 24-mile challenge hosted by the LDWA South Pennine group, based at Dovestone Sailing Club near Greenfield in the Dark Peak. The route climbs about 3900 ft, traversing the South Pennine Moors from wild moorland to well-graded footpaths and bridleways, offering panoramic views al..

March 2026

Up on the Downs, hosted by Tri-Counties Trail Running, takes place at Breamore House near Salisbury. Runners can choose from 5k, 10k (about 11.5k), or a half marathon, all starting and finishing at Breamore House. The route is mainly trail, 95% off-road, across farmland, footpaths and bridleways, wi..

The St David's Day Dragon Run 2026, organized by Saturn Running, takes place in the scenic Dare Valley Country Park in Aberdare, Wales. This 7-hour time challenge allows participants to run distances of their choice, starting from a minimum of 3km. The course features well-maintained footpaths with..

Culzean Castle Trail Runs take place at Culzean Castle and Country Park in Ayrshire, on Scotland’s west coast (Maybole, KA19 8LE). The event offers three trail distances—5km, 10km, and a half-marathon (approximately 13.1 miles)—with routes designed for a range of ages and abilities. The course trave..

Scrimshire's Scramble is a community‑led, not-for-profit trail run held at North Leverton Windmill in Nottinghamshire. Now in its second year, the undulating 10k (actually nearer 10.5k) multi‑terrain course uses green lanes, byways and public footpaths through rural fields, with muddy sections and o..

Pitsford Water Trail Races are fully marked and marshaled trail races held at Brixworth Country Park, Northampton Road, Brixworth NN6 9DG. The event offers two distances: 10k Half Marathon Entries are priced at £25 for the 10k and £30 for the half marathon. Minimum age on race day is 16 for the 1..

The Weymouth Bay 10K is a scenic charity fun run held in Weymouth, Dorset, starting at Bowleaze Green near the Riviera Hotel. The course is an accurately measured out-and-back route featuring two laps, extending towards Pleasure Pier and returning via Overcombe. The mostly flat road terrain (88%) of..

Cloud 9 Hill Race, organized by Congleton Harriers, is a scenic 9-mile (14.5 km) off-road hill race from Congleton to the summit of Bosley Cloud (1125 ft) and back via the Bridestones. The mostly forested course climbs about 1250 ft (381 m) of ascent and is run under FRA rules, with chip timing and..

Stody Estate Trail Run offers exclusive access to the private Stody Estate near Holt, North Norfolk, inviting runners to trade roads for woodland and open-field trails with a couple of challenging inclines. The event features three distances—4k, 8k, and 12k—through the estate and surrounding country..

The Brecon to Cardiff Classic is a 70-kilometer ultra running race following the scenic Taff Trail from Brecon in the Brecon Beacons National Park to Cardiff. Now in its 12th year, this fully marked, one-way race features diverse landscapes, including dramatic mountains, waterfalls, reservoirs, and..

High Lodge Half Marathon – Spring is a circular trail race set in Thetford Forest, offering a friendly atmosphere for both seasoned trail runners and newcomers. The multi-terrain course loops through hard-packed trails, forest paths, sandy sections, and grassy footpaths, with wildlife such as fallow..

Scurry Around Corstorphine Hill 2026 offers 10km, 5km trail runs and a 1km family fun trail run on Mar 1, 2026. The race starts in the field opposite the Leonardo Edinburgh Murrayfield Hotel and uses clearly marked, marshalled off-road trails around Corstorphine Hill. The 5km path is one lap; the 10..

The Imber Ultra is an annual trail running event covering over 33 miles, organized by Avon Valley Runners and the Rotary Club of Westbury. Held in the scenic Wiltshire area, the race offers a challenging course with multiple checkpoints, attracting trail running enthusiasts seeking a long-distance a..

Brecon to Cardiff Xtreme is a winter mountain ultramarathon, a 75-km linear challenge from Brecon to Cardiff (about 47 miles) with roughly 2,700–2,800 m of ascent, including 11 summits such as Pen y Fan, Cribyn and Fan y Big. The Taff Xtreme Marathon is the second half, a 26.2-mile leg from Merthyr..

Silent Pool 10km is a guided trail run that starts and finishes at Silent Pool, Albury, near Guildford. The route follows North Downs Way sections and the Netley Heath forest, dipping into Shere and passing film locations from The Holiday and Bridget Jones Diary. It’s ideal for those new to trail ru..

Cousin Jack features two coastal trail races organized by Bys Vyken Events. The Classic Jack is an 18-mile point-to-point challenge from St Just miners chapel to St Ives, Cornwall, along the rugged south-west coast path. The Ultra Jack doubles the scale to 35 miles, starting in St Ives and heading o..

The Loggerheads Trail 5k & 10k is a popular trail running event set to take place in March 2026 at Loggerheads Country Park. Participants can choose from three race options: a 5k Trail, a 5k Canicross Trail, and a challenging new 10km route. The courses feature a variety of terrains, including river..

Lincoln Marabank returns to Burton Waters near Lincoln for a third year, offering a flat, traffic-free course along a canal towpath beside the Fossdyke, England’s oldest working canal. The 7-hour timed event lets runners choose how far to go, from quick laps to a marathon or even an ultra, with a sm..

The Winter Green Man Ultra is a looped trail race around the Community Forest Path near Bristol. Distances offered: 45 miles / 72 kilometres 30 miles / 48 kilometres The 45 mile race is a full anti-clockwise loop starting and finishing at Ashton Park School. The 30 mile event is a partial anti-cl..