Trail Running Calendar United Kingdom 2026-2027
Explore the best trail runs in United Kingdom for 2026-2027! Our updated list features 2175 exciting trail runs across the country. Find your next trail run in United Kingdom below and join the trail community at these great events! Search for a location or view races near London, Birmingham, Glasgow, Liverpool, Scotland or Wales.
October 2026
Obstacle-course race at Aske estate for dogs and owners, with 5 km and 10 km routes, dozens of marked obstacles and an 850 m muddy assault section.
Timed, self supported loop around Canvey Island starting and finishing at Waterside Farm Leisure Centre with a pub stop at 10 km and a four hour cutoff.
ATW Grafham 5K and 10K at Grafham Water on 25 Oct 2026 offers timed 5 km and 10 km races with camping option, charity fundraising and on site parking.
Trail marathon and half marathon near Canterbury through Kentish countryside; marathon requires navigation and both races use CCCU Sports Centre as HQ.
Looped races at several Buckinghamshire venues let runners use 7K or 10.8K loops to build distances from 10K up to ultra, with aid stations, crew support and medals.
A guided 13 km loop around Llyn Trawsfynydd in Southern Snowdonia on runnable trails with limited ascent and regular regrouping stops.
Mendip Muddle is a 20 km multi terrain fell race in Somerset with about 420 m of climbing. Headquarters are at Charter House Outdoor Activity Centre; on course water and first aid are provided and prizes are awarded by category.
A spring and autumn canal race from Tiverton offering Marathon, 20 Miler (March only), Half Marathon and 10k on flat towpath trails.
Day one of a two day mountain marathon at Westermill Farm, Exford, featuring a 40 km course with 1800 m of climb. Teams of two must pre-enter and the entry fee covers both race days and campsite.
A countryside walking event from Blackmore with a 26 mile figure of eight route and an 18 mile option, forming part of the Essex and Herts Triple Challenge.
A guided 10 km trail run through High Lodge in Thetford Forest, led at a conversational pace with group placement by ability. Mostly flat mixed terrain with a couple of small hills and practical tips on trail running.
Duathlons and 5km and 10km trail runs in Salcey Forest on 25 October 2026 with fully off road routes and live chip timing.
A 10 km multi-terrain race on 25 October 2026 around Rosemullion Head and the Helford, starting and finishing at Carwinion Playing Field in Mawnan Smith.
Night-time Halloween run at Irchester Country Park with 5k and 2k family routes, themed marshals, medals, free photos and charity donation options.
A series of mountain trail races across the Black Mountains and Brecon Beacons offering four distances from 21 miles to 100 miles. Routes combine marked sections, GPS navigation and staffed checkpoints with mountain safety cover.
An evening trail event at Haldon Forest Park on 30 October 2026 offering a 2.5 km fun run plus 5 km and 10 km running and canicross options, free race photography and a Halloween 2025 medal for each finisher.
A Halloween themed trail event on the Leeds to Liverpool Canal in Kirkstall offering distances from a family friendly 1 mile to ultra marathon. The licensed course is marshalled and features drink stations, Halloween medals and spot prizes.
An 8 hour timed off-road and paved event in Bridestowe with 5.3 km laps on a disused train line, limited to 70 entrants and awarding medals to finishers.
A 10 km trail race from Auchterarder into the Ochil Hills with forest trails, stream crossings and a route shaped like a chilli pepper. Online entry, 16+ age limit, goody bag with snood and medal, prizes for finishers and costumes.
Celebrate Halloween with a historic fell race starting at the Summit Inn in Littleborough. This 4.3 mile event features 800 feet of ascent and includes categories for all ages from juniors to seniors.