Trail Running calendar near Guildford 2026-2027

Join a fun muddy obstacle course in Brentwood featuring 5km and 1.5km distances filled with foam and obstacles. Enjoy a non competitive atmosphere with hot wash downs and finisher medals for all participants.

Experience a unique run through the National Arboretum on solid forest paths. With distances from 1 mile to a half marathon, this event offers a flat course surrounded by thousands of rare tree species.

Choose a half marathon or full marathon along a flat, scenic riverside towpath from Walton on Thames to Hampton Court and back, run in laps for easy pacing. Limited places and medals for all finishers plus a giveaway for every entrant.

Nuclear Mud Sisters is an empowering women only obstacle course in Essex featuring a 5km muddy challenge. This non competitive event focuses on teamwork and fun with no chip timing or swimming required.

A 50 km point to point ultra on September 5 2026 between Ramsbury Brewery and Renegade Brewery, mostly off road with four aid stations, chip timing, live tracking and a nine hour cut off. Shuttle bus and personal nutrition options available..

Join the Carnival Chase on 6 Sep in Warminster Town Park for 10K, 3K and a 1.2K family, wheelchair and buggy fun run. Enjoy a scenic country lane course by the boating lake, medals for all and a lively event village.

The Beast is a challenging trail race of around 13 miles through Corfe Castle Common, with undulating terrain and stunning coastal path views toward Worth Matravers. Enjoy water stations on course and a unique finisher t shirt.

Experience a guided 10km trail run through the North Downs Way and Shere village. Join a social group run starting from the historic Silent Pool near Guildford and enjoy stunning forest scenery at dusk or night.

Experience an autumn trail run through the footpaths and bridleways of Boreham. This 10k event features a sunset start with a scenic off road route and a seasonal championship point system for participants.

A timed, lap-based Friday run along the Thames with flexible rock up and run starts; the £10 affiliated entry is donated to Rays of Sunshine and participants receive a double-sided charity medal.

A bi-annual trail series around Bewl Water, Kent, offering measured 10 km, half marathon, marathon and 50 km ultra courses on wooded trails and quiet lanes with reservoir views.

A riverside multi-distance event along the Thames from Putney to Henley, offering **100 km** and shorter options with staffed rest stops, GPS tracking, camping and categories for walkers and faster runners.

A three-race fell running series in Ventnor, Isle of Wight on 12–13 September 2026, including the SEAA Fell Running Championships, with distances from 3.8 km to 21 km and entries via SiEntries.

Three multi-terrain races from Shere Recreation Ground through the Surrey Hills, offering timed 10k, 21k and 42k courses with marked routes, marshals, aid stations, finishers' medals and an Event Village.

Ventnor Horseshoe on Sat 12 Sep 2026 offers a scenic but testing 12 km fell course around Ventnor with 443 m of climb. Part of the Isle of Wight Fell Series, it is perfect for runners seeking a tough coastal hill challenge.

Start the IOW Fell Running Series with St Boniface Fell in Ventnor on Sat 12 Sep 2026, a punchy 3.9 km race with 235 m of climbing across scenic Isle of Wight terrain. Pre entry or on the day entries welcome.

The The C2C Essex Ultra will take place in Tilbury on Saturday 12 September 2026. You can run between 10 and 50 miles.

Experience the scenic beauty of Surrey at The Farnham Pilgrim Marathon. This event features a 26.2 mile route starting from The Sands Recreation Ground and offers participants spectacular views throughout the course.

Trail running in Rye, East Sussex with 30k and 15k routes through the High Weald Area of Outstanding Natural Beauty. The event features varied terrain, about 1500 ft of climb and supports The Oliver Curd Trust.

Trail races in Slinfold on 13 September 2026 with 10k, 5k and children's races through West Sussex countryside; chip-timed events that raise funds for local community causes.