Trail Running calendar near Chalfont Saint Peter 2026-2027

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.

Experience a scenic trail race around Kent’s beautiful Bewl Water reservoir with four distances ranging from 10km to a 50km ultra marathon.

Follow England's greatest river from Putney Bridge to Henley on a fully supported trek or trail run. Choose distances from 10km to 100km and enjoy a riverside route through historic landscapes with full catering and medical support.

Test your endurance at Thetford Forest in a classic Backyard Ultra format. Run 4.167 mile loops every hour through scenic forest trails until only one person remains or choose the 6 or 12 hour timed options.

Experience the Isle of Wight Fell Running Championship Series featuring three distinct races across the scenic terrain of Ventnor. Athletes can compete in individual events or the full series ranging from 3.8 km to 21 km.

Experience the beauty of the Surrey Hills with a choice of 10k, 21k, or 42k trail routes. Enjoy a well organized event featuring chip timing, marked courses, and scenic views from iconic local landmarks.

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.

Experience a hilly multi-terrain race through the High Weald Area of Outstanding Natural Beauty. Choose between 15k and 30k routes linking historic Norman churches and medieval trails in East Sussex.

Participate in a chip timed trail race through the West Sussex countryside starting in Slinfold. This family friendly memorial event features 10k and 5k routes plus dedicated races for children.

Tackle the Wroxall Round on 13 September 2026, a scenic 21.1 km fell run around Ventnor with about 487 m of ascent. Open to adults, with on the day entries and team places, this is race 3 of the Isle of Wight Fell Running Series.

Experience the scenic Roman River valley near Colchester with self navigation marathon and half marathon trail races. This cupless event features hilly terrain across villages and hard-packed trails for a rewarding outdoor experience.

Experience a scenic trail run through the beautiful Hertfordshire countryside starting in the village of Sandridge. This event features a 10k route near the historic city of St Albans with a finish at the local primary school.

Experience a traffic free trail run through the historic Holdenby House estate with distances ranging from 10km to 50km. Enjoy rolling Northamptonshire views and woodland paths on this private country estate.

Run a scenic and undulating 10k on the rough tracks of Ashtead Common, a protected nature reserve. This community event raises money for local charities and promotes environmental sustainability. A 2k fun run is also available for kids.

Experience an annual fun run at Barton Abbey in Oxfordshire featuring 10k and 5k courses on undulating terrain. Join several race distances or a flexible family fun run to support the maintenance of Steeple Barton Church.

Experience a scenic multi terrain 10km or canicross run through woodlands and private fields. Finish your journey at the Ridgeway View Campsite with a custom medal and a cold pint from SOX Brewery.

The Bradenham Blast is a scenic 10km trail race through the Chilterns. The hilly course features beech woodlands and a final 3km downhill stretch. It offers finisher medals, photography, and prizes for top runners and teams.