Trail Running calendar near Brentwood 2026-2027

Enjoy a flexible 7 hour time challenge along the scenic River Thames in Egham. Run or walk as many laps as you choose to earn a medal and special distance pins at this inclusive midweek event.

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.

Experience an off road five mile race through the picturesque North Wessex Downs. Follow woodland tracks and rural footpaths on a course starting in Hurstbourne Tarrant with all proceeds supporting local charities.

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.

Enjoy a guided 5km trail run through the Chiltern Hills followed by a specialized movement class. This event includes expert run leaders, trail technique instruction, and basic facilities at Church Farm Cafe.

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..

Kick off the championship series with this 15k spring trail run in Boreham. Enjoy a scenic route consisting of 95% off road paths through footpaths and bridleways with on site amenities and optional swim access.

The Chiltern Hills 100K is a 100-kilometre ultra marathon on 9 May 2026, traversing a scenic loop of trails through the Chiltern Hills with 1800m of elevation. This UTMB World Series Index Race offers fully marked routes, six stocked aid st..

Experience a scenic 50 km point to point ultramarathon from Horsham to the Brighton seafront. This multi terrain course traverses the South Downs and offers a fully supported journey with a bespoke finisher medal.

Experience a weekend of trail running at the picturesque Deene Park Estate featuring multiple challenges including a 10k evening run and a hilly half marathon. Tackle individual races or take on the full 56.1k quest.

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.

Experience a unique 5 km obstacle run in Guildford featuring a wide variety of large inflatable structures. This event provides a fun and bouncy course for individuals and teams looking for an active day in Surrey.

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.