Trail Running calendar near Aylesbury 2026-2027

A four person, four leg stage trail relay along the Roach Valley Way covering 23 miles in total. Teams navigate using maps and way markers with minimal marshals while the event raises funds for Havens Hospices.

A guided **10k** group trail run through High Lodge in Thetford Forest, led at a conversational pace on mostly flat woodland trails. The event allows two hours, has a £4 parking charge and an entry fee of £12.50.

Guided trail runs at High Lodge in Thetford Forest combine running on miles of woodland trails with facts about the forest and practical trail running tips. Routes include 10k and 16k options and events include both paid and free entries.

A trail festival in Winchester on 4 May 2026 offering four distances from 14 miles to a 50K ultramarathon, fully marked routes, aid stations and parking at Winchester Rugby Club.

Take on the Freddo Mercury Rhapsody Run along a flat riverside towpath at Xcel SPORTS HUB, logging as many 5.3 km laps as you can within a relaxed 7 hour limit. Rock up in a 1.5 hour start window or request a time, with aid stations and opt..

Spring trail races in Harewood Forest featuring 5k, 10k, canicross and a children's fun run on undulating forest and field routes. Pre-registration only; proceeds support local playing fields and school PTA.

A mainly off road 15k trail run at Trifarm, Boreham on 06 May 2026 featuring an anticlockwise route on public footpaths and bridleways, on-site parking, water points and manual timing.

Join this 5 mile multi terrain race at Bromsgrove Rugby Club featuring a scenic route of trails and towpaths. This evening event welcomes both solo runners and canicross participants for a focused and competitive run.

A six-hour off-road challenge at Beacon Hill Country Park on a 3.3 mile loop. Participants complete as many laps as they wish within the time limit; a head torch is required for laps started after 7pm.

A 100-kilometre anticlockwise loop through the Chiltern Hills, the race follows The Ridgeway and local trails with six checkpoints, marked navigation and open GPS tracking. The event is based in Chesham and limited to 250 runners.

A point to point 50 km ultramarathon from Horsham to Brighton seafront on 9 May 2026, featuring multi terrain trails, four feed stations and a 9.5 hour cut off. Individual and two runner relay entries are offered with team prizes.

A multi-distance weekend at Deene Park near Corby offering three standalone trail challenges and a combined 56.1 km Quest, with varied surfaces, woodland terrain, evening running and free camping.

Goring Gap Trails offers ultramarathon, half marathon and walking distances near Reading on 9 and 10 May 2026. The TRA licensed event includes affiliated and unaffiliated entry options and on site camping.

Inflatable 5K in Guildford on Saturday 9 May 2026 is an inflatable obstacle course at Stoke Park offering 2.5k laps with options of 2.5k, 5k, 10k or 15k and family friendly participation rules.

A linear 40 miles walk along the ancient Ridgeway from Avebury to Streatley, crossing Wiltshire, Oxfordshire and Berkshire and passing prehistoric sites. The event uses mapped routes, staffed checkpoints with refreshments, and awards a comp..

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.

Nuclear Rush is a muddy obstacle race at the Secret Nuclear Bunker Estate in Essex featuring 6 km with 40 plus obstacles and 12 km with 70 plus obstacles, plus signature features such as the 20 foot Deathslide and multi lane zip wires.

A national OCR event at Nuclear Rush supported by British Obstacle Sports, the British OCR Championship runs a 12K plus route with 60 plus mandatory obstacles across mud, water and rugged terrain. It is chip timed, for 18 plus, and awards m..

A riverside event at Wraysbury Skiff & Punting Club offering 10 km, half marathon and marathon courses along the Thames Path with marked laps, marshals, a bespoke finishers medal and prizes for top finishers.

A weekend of muddy obstacle races at the Secret Nuclear Bunker Estate in Essex, with distances from 1.5 km to 38+ km, signature obstacles like the Deathslide and zip lines, chip timing and on-site facilities.