Trail Running calendar near Tadworth 2026-2027

A mixed road and country run around Ousden in Suffolk offering 5k, 10k, half, full and ultra options with loop and out-and-back formats, regular aid stations, onsite parking and bespoke finisher medals.

Park-based 3k and 5k runs at Dunorlan Park with mixed grass and woodland terrain. The event is organised by Cancer Research UK and includes a fundraising pack and a finishers medal.

A point-to-point trail event through the Hertfordshire AONB offering marathon, half and 10 km distances open to both runners and cyclists with separate results and medals.

A *10 km* out-and-back race through gravel paths and woodland at Weald Country Park in Brentwood, organised by MCC Promotions. The event includes on-day registration, water stations, prizes and supports the charity Sport In Mind.

A trail half marathon from Chiddingly, Sussex along the Wealdway and Vanguard Way with two checkpoints, chip timing, a five hour limit and a choice to donate instead of a medal.

A forest trail event at Wendover Woods offering a hilly multi-lap 10 km course with Half Marathon, 10k and Junior Run options, on-site facilities for spectators, route maps and GPX files, and medals plus free photos for participants.

An urban ultramarathon in central London with 100km, 50km and 25km routes that pass over 100 city landmarks, with checkpoints and training resources.

A 100 mile nonstop race along the South Downs Way on 12 June 2027, with 12 aid stations, a 30 hour cut off and mandatory kit checks.

The Centurion South Downs Way 50km will take place in Winchester on Saturday 12 June 2027. You can run between 5 and 50 kilometers.

A muddy 5k obstacle course at Cassiobury Park where participants climb, crawl and slide through timed waves while raising funds for cancer research.

A community Race for Life event at Cassiobury Park on 12 June 2027 offering 3k, 5k and a 10k double lap course with accessible facilities.

Trail ultramarathon on 19th June 2027 at West Dean Gardens with 30k, 50k, 80k and 100k route options across the South Downs and coast.

A muddy 5k obstacle course around The Common in Southampton where participants climb, crawl and slide through obstacles while raising funds for cancer research. Waves run every 15 minutes and participants must be 13 or older.

Point to point ultra and marathon along the Three Shires Way on 19 June 2027, with GPS routes, aid stations, tracking, prizes and a finisher medal.

A 24 hour running festival in Milton Keynes where individuals or teams complete as many 6.55 mile laps as they wish, with camping, showers and on-site food and facilities.

A 75 mile off road ultra on a one mile loop at Denbies Wine Estate with up to 30 hours to finish, chip timing and multiple concurrent race options.

A 100 mile ultra on a flat one mile trail loop at Denbies Wine Estate offering 12 hour and 24 hour options plus 50, 75 and shorter races.

Trail marathon and half marathon at Denbies Wine Estate on 19 June 2027, run on a 1 mile loop with chip timing and an extended start window.

A 24 hour attended challenge at Denbies Wine Estate in Dorking where runners complete 1 mile on the hour for 24 consecutive hours; onsite tent camping, daytime cafe service and a simultaneous virtual option are provided.

A 50 mile loop ultra at Denbies Wine Estate in Dorking with a flatish one mile circuit, chip timing, several concurrent race options and up to 30 hours to finish.