Trail Running calendar near Weir Wood Reservoir 2026-2027

Join a social guided trail run through the scenic Chiltern Hills led by expert instructors. This non competitive 10k event features technique coaching and group runs for all abilities starting from Aldbury.

Ultra:5K challenges runners at Box End Park in Kempston. The format requires running a 5K on the hour, either five times or three times. The fastest total time across all the runs wins.

Experience a hilly seven mile trail race or a free junior run through the landscapes of Knole Park in Kent. Enjoy a community atmosphere with bespoke medals and proceeds supporting The Running Charity.

Experience a summer trail running festival in the heart of the Surrey Hills. Choose from five distances ranging from 2km to 50km and enjoy a weekend of camping, yoga, and live music at Mill Farm.

Race The Light is a Saturday evening trail run in Wendover Woods supporting the Chilterns Neuro Centre. Choose from a hilly 10K, a 5K, or an accessible 1.5K route. The fully-marked course is open to runners, walkers, and wheelchair users.

Experience a unique festival of running at Blackland Farm with 12 and 24 hour solo endurance challenges. Explore a scenic 1 mile off road loop featuring woodland trails and inclusive camping for a complete weekend experience.

MacTuffX Brighton features a unique fitness racing format based on ten intervals of 400m or 800m. Available for individuals, doubles, or relay teams, this event offers a variety of ways to compete in July 2026.

Enjoy a flat and fast chip timed 10k race through Highfield Park and along the scenic Alban Way. This family friendly event features live music, a fun run, and a buzzing event village in St Albans.

Experience a rewarding trail run through Ashdown Forest featuring hard packed paths and 1568ft of elevation. Choose between 5 or 10 miles and enjoy spectacular views across The Downs.

Set your own distance goal in this 6-hour trail running challenge. Runners complete as many 5K loops as they can on a scenic, 95% off-road course. Every finisher receives a medal.

Experience a multi loop cross country run through the scenic Surrey Hills on the tracks around Holmbury Hill. Choose between a half marathon or a ten mile distance and earn a bespoke medal at this well marshalled event.

Celebrate a 50th anniversary with a chip timed 5 mile trail race through the scenic woodland of Queen Elizabeth Country Park. This summer cross country event offers a friendly club atmosphere and post race refreshments.

Enjoy a 10k trail run through Chelmsford featuring a unique brewery checkpoint. This non competitive event includes mid race and finishers drinks along with a commemorative medal for all participants.

Enjoy a flexible seven hour timed challenge along the scenic River Thames in Egham. Run as many laps as you choose to earn themed medals and distance pins on a flat and fully signed course.

Experience a flat trail race through the scenic pathways of Summerleaze Park and along the lakeside. Choose between three distances and enjoy a peaceful route with chip timed results and themed medals for all finishers.

Experience the scenic beauty of the South Downs Way with trail races starting from Queen Elizabeth Country Park. Choose between three distances featuring woodland paths and panoramic views across Hampshire and Sussex.

Bright Skies Surrey Hills on 26 July 2026 at Denbies Wine Estate in Dorking offers trail races from 10K to marathon, plus Canix and kids races. The marathon is self navigated with mandatory checkpoints.

Experience the scenic Surrey Hills on a supported 50km, 25km, or 10km challenge along the North Downs Way. Walk, jog, or run with full hospitality and rest stops starting from the Guildford basecamp.

MacTuffX London offers a unique interval based competition featuring 400m and 800m repetitions. Participants can compete individually or in teams of two or more across six different event categories in August 2026.

Run along the scenic Vanguard Way on an undulating out and back course from Croydon through the North Downs. Choose between a full or half marathon and enjoy a route filled with historic landmarks and woodland trails.