Trail Running calendar near Chelmsford 2026-2027

Test your endurance on a flat but demanding loop along the Thames and historic canals. Choose from 100, 150, or 250 mile distances with full GPS tracking and checkpoint support.

A limited capacity evening trail run of 5 miles for over 18s with the course run in reverse from previous years. Route files are provided beforehand and finishers can exchange their race number at the bar for a drink.

A 15 mile trail run from the beer garden of the Ye Olde Smugglers Inne in Alfriston with two pub checkpoints offering a drink and snack; route GPX and a race narrative are provided and results appear within 24 hours.

Join this road running event in Bury St Edmunds featuring distances from 5k to an ultra marathon. Enjoy scenic undulating routes and a seven hour cut off on the same day as the London Marathon.

Experience the beauty of West Sussex at the 22nd Angmering Bluebell Trail Run. Choose from 10km or 10 mile routes, including dog friendly CaniRun options, through stunning private woodland and the South Downs.

Run for a cause through the forest trails of Alice Holt Forest. This charity event supports bowel cancer research with distances from a Junior Run to a Half Marathon. Participants receive a bespoke medal and enjoy a supportive, community at..

Join NOT the London Marathon Run 2026 on Sunday 26 April in Walton on Thames for a flat, certified lap course along the riverside towpath. Choose marathon, half or a 7 hour timed challenge, enjoy flexible starts and a commemorative medal.

Experience a guided 10km trail run through the bluebell woods of the Chiltern Hills. Join expert local guides for a morning of supported running through nature reserves starting from the heart of Tring.

Explore the South Downs National Park with a 28 or 18 mile route for walkers and runners. Experience the Seven Sisters and iconic villages with hosted checkpoints and a hot meal at the finish.

Experience a 5K multi terrain run through the picturesque Fineshade Wood. This new series venue offers a woodland course for all abilities with bespoke finishers medals and on site facilities for runners and spectators.

Experience an 8km trail loop through the scenic landscape of Icklesham. This small scale event offers marked routes, local landmarks, and post race refreshments at the village hall.

Run a scenic 7 hour timed challenge along the River Thames at Wraysbury on Friday 1 May 2026 and choose your distance from 3 km to ultra. Friendly aid, medals and goody bags make this intimate 300 runner event ideal for PBs or relaxed miles..

Experience a 100 mile point to point trail race following the iconic Thames Path from London to Oxford. This flat and fast course offers a 30 hour time limit through beautiful English riverside scenery and groomed trails.

Join a guided 30 mile group trail run through the North Downs Way and Greensand Way featuring summits like Leith Hill. This noncompetitive event offers professional coaching and scenic views across the South East England countryside.

Experience a unique three day event through West Sussex featuring 10 mile and 10k races that combine to form a full marathon. This bank holiday weekend also offers family fun runs and chip timed mile races for all ages.

Run Silchester offers three scenic trail distances starting from the village playing field. The route takes runners past ancient Roman walls, a historic church, and through woodland. The day includes a village market, food stalls, and music..

Experience the scenic trails and woodland paths of Hampstead Heath in this annual charity event featuring chip timed races and a community fun run with views of the London skyline.

Test your endurance on the beautiful South Downs with a choice of marathon, half marathon, or five mile trail distances. Enjoy a well supported community event featuring stunning Sussex scenery and challenging hill climbs.

Experience a guided 12.5 mile trail run at Box Hill featuring over 1000 metres of elevation gain. This non competitive group event traverses technical woodland and heathland terrain under the guidance of a professional trail coach.

Take on a coastal adventure with sandy trails and undulations in the Heritage Coast Run. Choose between a 10k or half marathon, both sharing a scenic, mostly off-road route. There's even a special 10k category for runners with dogs.