Trail Running calendar near Waltham Cross 2026-2027

Off road half marathon and 10 km near Ludgershall, running through woodland and bridleway trails. The event is chip timed and features stocked aid stations, medical support and finisher medals.

A weekend trail running festival at Deene Park Estate near Corby on 9 and 10 May 2026 featuring 10k, 21.1k and 25k challenges plus a combined 56.1k Quest and festival activities.

Experience a variety of trail running and walking events at Mapledurham near Reading. Choose between ultra distances, half marathons, or a six mile walk featuring a river boat crossing with on site camping available.

An inflatable obstacle course in Guildford, Surrey on Saturday 9 May 2026 covering 5 km. The organiser says the 2026 edition is bigger and bouncier, and recent bookings include 64 in the past 24 hours.

Test your endurance at Stanmer Park by completing 4.167 miles every hour until only one runner remains. This out and back course offers a personal challenge with support facilities and refreshments for all participants.

Experience an award winning obstacle course at the Secret Nuclear Bunker Estate featuring signature challenges like the Deathslide and zip lines. With distances from 1.5km to 38km, there is a muddy adventure for every participant.

Test your limits at the British OCR Championship in Essex. This 12km+ elite course features over 60 technical obstacles and serves as a qualifying event for both European and World Championships.

This event on the Thames features 10K, half, and marathon distances on scenic riverside paths. Starting from the Wraysbury Skiff Club, the courses use fully marked out-and-back loops. The area near Runnymede offers beautiful countryside and..

Conquer the mud at the Secret Nuclear Bunker Estate with courses ranging from 1.5 km to 38 km. Experience signature obstacles like the Deathslide and zip lines in this award winning Essex event.

A 5 kilometre race at Banham Zoo featuring a lap inside the zoo and full-day zoo entry. The event supports conservation, includes a finisher medal and Race Day Village, and offers discounted spectator tickets for friends and family.

Experience the twilight beauty of Ardingly Reservoir during this evening run in West Sussex. Choose between a 5K or 10K distance on an undulating trail course featuring scenic water views and a finisher medal.

A 30th‑edition marathon in North Essex on scenic, low-traffic roads, organised by Halstead Road Runners with strong volunteer and charity involvement. Limited to 500 entries, the race is also part of the Essex Road Running Championships.

A multi distance running event around Naseby in Northamptonshire featuring road and trail sections, landmark views and annually reversing course direction. Distances range from a 10K up to a 35 mile ultra with varied aid and navigation arra..

Zig Zag Marathon and Half Marathon is on Sunday 10 May 2026 at Suffolk Running Centre in Bury St Edmunds. The marathon follows the measured Kirtling route and the half uses the Windmill route, with aid stations every 10k and a seven hour cu..

Off-road 10k, 5k and junior runs at Milton Creek Country Park on 10 May 2026. The event supports the Oliver Fisher Special Care Baby Trust and includes medals, prizes, pacers and limited free on-site parking.

A trail race at Rathfinny Wine Estate offering 10.7 km and 21.4 km loops with a carbon-neutral approach, recycled medals, cup-less provision and fundraising support for the WOLO Foundation.

A self-guided 13-mile run along Letchworth's scenic Greenway trail. This is a run, not a race, due to road crossings. Finishers get a wooden medal and refreshments, with profits supporting a local youth mental health charity.

Experience a scenic trail run through the South Downs featuring 20k, 10k, and junior distances. This well organized event includes chip timing, finisher medals, and hilly routes with views over the Cowdray and West Dean Estates.

Explore the beautiful Chiltern Hills on this guided 30km trail running adventure. Enjoy 500m of ascent through woodlands and ridges with professional run leaders and a finishers medal included.

Experience a vibrant trail running series at Dunstable Downs or Bristol. With distances from 1km to 10km, this inclusive event features live music and food for a complete carnival atmosphere.