Trail Running calendar near London 2026-2027

We have found 426 Trailruns within 80 miles of London. See below where and when you can find the races.

Enjoy a flexible timed running event along the flat River Thames towpath. Choose your distance from 5km to an ultra marathon and earn a bespoke spinning medal on this fast riverside course.

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 24 hour trail running weekend on the beautiful Shotley peninsula. Run solo or in teams on a scenic coastal loop with overnight camping and social activities included.

Experience scenic trail running through the Winwick Hall Estate with distances for the whole family. Support the Bruce Green Foundation while tackling marked routes across hills and country paths.

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.

The Surrey Slog will take place in Ewhurst on Sunday 19 July 2026. You can run between 10 and 13 miles.

Join a 10 day running event at the Suffolk Running Centre offering flexible daily distances from 5k to Ultra Marathons. Experience various routes and earn a daily medal at this cupless multi day challenge.

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.

Take on a scenic 7 hour timed challenge along the River Thames at Wraysbury, choosing how many laps to run from a 3 km minimum up to 50 km or ultra distances. Finishers from 3 km earn a medal and everyone gets goody bags with vegan options.

Join the Maidenhead Trail Run for a flat, scenic race through Summerleaze Park. Choose from 5K, 10K, or Half Marathon distances on peaceful trails. Your entry includes a medal, chip timing, and free photos.

Experience the rolling greenery of the South Downs Way with trail races of 12k, 25k, and 50k starting from Queen Elizabeth Country Park. Enjoy a fully marked course with chip timing and a unique themed medal.

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.

August 2026

The North Downs 50 offers a scenic trail challenge through the Surrey hills on 1 August 2026. Choose from 50 km, 25 km, or 10 km loops starting from Guildford, with full support and hospitality. Options for competitive runners and dedicated..

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.

The MTC Windsor Ultra is a 47-mile point-to-point race along the Thames Path. Runners travel from Henley to Kingston, passing landmarks like Windsor Castle. All finishers receive a bespoke medal and event apparel.