Trail Running calendar near Eynesbury 2026-2027

MacTuffX Swindon features a series of repetition based running formats including solo and team categories. Participants choose between multiple 400m or 800m loops in this structured athletic event for adults.

Experience a scenic 15 km trail run starting from Tring and traversing the Ashridge Estate. This historic race features the Ridgeway path and provides participants with the choice of a finisher t-shirt or planting a tree.

A circular 13.1 mile trail half marathon at High Lodge in Thetford Forest, featuring mixed forest and hard-packed trails, cupless water stations, manual timing, and a 3.5 hour cut-off; minimum age 17.

Experience the world’s largest inflatable obstacle course at the Norfolk Showground in Norwich. This event features a five kilometer route filled with bouncing obstacles for a physical and unique running experience.

A 100 mile trail race through Oxfordshire featuring four 25 mile out and back spurs. Runners navigate the historic Ridgeway and Thames Path trails supported by 16 aid stations and full medical coverage.

Join this annual cross country challenge through the footpaths of Kent, Surrey, and Sussex. Choose between 25km and 50km distances with full checkpoint support and post event catering included.

Experience an off road 10k through the Norfolk countryside featuring woodland tracks and optional obstacles. Enjoy a unique route with a ford crossing and support the Purfleet Trust at this scenic trail event.

A point to point 47 mile ultra from Iffley near Oxford to Henley-on-Thames along the Thames Path and Ridgeway National Trails, featuring mixed terrain, five aid stations, mandatory safety kit and real time GPS tracking.

A 30 mile out and back ultramarathon along the River Stort with mostly flat, mixed trail surfaces, checkpoints every 5 miles and a 4 hour halfway and 8 hour overall cut off. Clubhouse facilities and finishers medals are provided.

A lap based running event at Ferry Meadows with 5.3 km laps and four or six hour timed formats. Distances range from 5k to ultra with an aid station every lap and registration based at the Lakeside Centre.

ATW Grafham 5K and 10K at Grafham Water on 25 October 2026 features 5K and 10K races alongside the ATW Grafham Duathlon. Camping is available and the event supports Alzheimer’s Research UK.

Explore the Essex countryside on a 26 or 18 mile figure of eight course via Blackmore. This self sufficient event offers multiple checkpoints and a finishers meal as part of the Essex and Herts Triple Challenge.

Looped courses at two venues near Chalfont St Peter let runners choose distances from 7K up to a 40 mile ultra. The format offers drop bag access, an aid station, clear course marking and on course medical cover.

Experience a festive night run through the woodland trails of Irchester Country Park. Choose between 5k and 2k distances featuring themed medals, fancy dress, and spooky marshals for a memorable Halloween experience.

A single-loop 50K trail race around the Chilterns starting and finishing in Berkhamsted. Fully marked route along The Ridgeway and Chiltern Way with three aid stations, mandatory kit requirements and a 9 hour time limit.

Experience a festive 6.66 km Halloween trail run starting and finishing at a local brewery in Chelmsford. Participants enjoy a costume focused event with medals and drinks for finishers in a social atmosphere.

Experience a night trail run through the ancient Alice Holt Forest with 5 km, 10 km, or 15 km lap-based routes. Navigate tree-lined avenues by head torch and enjoy fire pits and refreshments at the finish line.

Autumn trail races at Wendover Woods offer marathon, half marathon, 10k and a junior 1k on multi terrain hilly forest loops, with route maps, medals, photos and on-site facilities for spectators.

Experience a unique 5 mile out and back run through the 422 meter Oxendon Tunnel. Choose between a Thursday night or Friday morning session and enjoy an atmospheric route that requires a head torch to navigate the darkness.

Two days of marathon and half marathon races around Caldecotte Lake in Milton Keynes on 6 and 7 November 2026, with multi-lap clockwise courses, on-course water and toilets, enforced time limits, and bespoke finisher medals.