Trail Running calendar near Colchester 2026-2027

Night-time Backyard Ultra at Vigo Rugby Club on 16 October 2026 where runners complete repeated 4.167 mile yards each hour until one runner completes one more yard than anyone else. A 7 Hour option runs on the same course.

A **5 km** inflatable obstacle course in Norwich on 17 October 2026, presented as the 2026 edition of the Inflatable 5K. Past participants reported an enjoyable experience and some attended with family members.

An annual cross-country challenge walk, jog or run of 25 km or 50 km across footpaths and tracks in Kent, Surrey and Sussex, with checkpoints, food provided, GPX route files, and first aid cover.

An off-road *10 km* run on bridle paths and woodland tracks near Westacre, with optional obstacles, a ford crossing near the finish, a 5 km water point, refreshments and medals for all; proceeds benefit the Purfleet Trust.

Trail races through Bedgebury National Pinetum offering Half Marathon, 10k and a junior race with route maps, GPX files, a bespoke medal and free photographs.

A 30 mile out and back along the River Stort and Lee Navigation on mostly flat grassy and gravel trails, with checkpoints every five miles, electronic timing and a finisher medal; trophies for the top three men and women.

Join this multi terrain timed event at Ferry Meadows in Peterborough to run as many laps as you choose over four or six hours. Reach your own distance goals on a scenic 5.3 km loop with full aid station support.

Experience a timed anti clockwise loop around Canvey Island featuring sea wall paths and coastal trails. This self supported adventure includes a unique pub check point and follows the scenic King Charles III England Coast Path.

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.

Off-road marathon and half marathon south of Canterbury on scenic trails and country lanes. The Marathon requires navigation and mandatory kit; OpenTracking is available and £1 from each entry supports the Kent Neuro Therapy Centre.

Looped races in Chalfont St Peter offering on the day choices from 7 km up to ultra marathon distances, with a single aid station, marked trails, drop bag access and medals for top finishers.

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.

Trail races at Wendover Woods on 1 November 2026 include marathon, half marathon, 10k and a junior run on hilly, multi terrain forest trails with route maps and a six hour cut off.

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.

Take on flat, scenic laps along the Thames towpath in Walton on Thames with flexible starts and distances from 5 km to ultra. Limited places, aid stations, digital results and medals make this a friendly, festival style challenge.

Nuclear Fallout runs muddy obstacle courses on farmland and woodland near Brentwood, Essex, with options from 6 km to 24 km plus, chip timing, many natural and man-made obstacles, and finisher medals and photos.

Experience a scenic trail run through the Bedfordshire countryside starting from Leighton Buzzard. Choose between a classic half marathon or a metric distance featuring canal towpaths, woods, and rolling hills.

Experience a flat trail run through the heart of royal Berkshire with chip timed results and free race photos. Choose between a 10k or Half Marathon distance starting from the scenic Alexandra Gardens in Windsor.