Trail Running calendar near Twickenham 2026-2027

A marathon and half-marathon along the Ouse Valley Way in Huntingdonshire on 20 September 2026, finishing at Earith on mostly flat grass, gravel and tarmac paths. The races are registered with the Trail Running Association and insured under..

Join this flexible timed event along the flat River Thames towpath in Walton on Thames. Complete as many laps as you like over seven hours to achieve distances from 5km to an ultra marathon.

A five mile autumn trail run on 24 Sep 2026 near Mill Green in Ingatestone. Small capacity event for over 18s with a regular anti clockwise route and compulsory phones and headtorches.

Looped trail event in the Chilterns based at Henley on 26 September 2026. Offers 50 km, 25 km and 10 km distances with covered rest stops, GPS tracking, medical support and camping at basecamp.

An obstacle-course weekend at Pippingford Park near Nutley with Sprint, Super, Beast, Ultra and kids races set on rolling hills and wet sections. The Ultra includes the British OCR Ultra Championship for eligible British entrants.

A 10 mile trail race at Chilton Manor Farm featuring private estate trails, a 1-mile yew tree-lined finish, on-course marshals and a sustainable finisher medal, with GPX/Strava route files and on-site pop-up cafe.

A backyard ultra at The Waggoners pub in Welwyn Garden City where runners complete a 4.167 mile loop each hour until one runner remains. Entry includes drink vouchers and a commemorative pint glass.

Three community races at Harcourt Hill on 26 Sep 2026 from a 10k off road course to a 1k fun run, organised by the 4th Oxford Scout Group with medals, prizes and water stations for participants.

Experience an autumn run through scenic pumpkin fields and farm tracks in Colchester. With 10k, 5k, and 1k distances, this flat off road event features chip timing and a family friendly event village.

Trail races at Salisbury Racecourse offer marathon, half marathon and 10 km over undulating downland with woodland and Martin Down turf. GPX routes are provided and finishers receive a medal; top three men and women earn trophies.

A community charity event on Sunday 27 September 2026 near Grantchester offering chip-timed 10k and 3k courses through farmland, medals for all finishers, trophies, and fundraising for Maggie’s and Addenbrooke’s Charitable Trust.

A 10 mile trail race at Eridge Park on 27 September 2026 with steep climbs, single track woodland, mud and water crossings on a marked, traffic free route. Finishers receive a memento plus cake and a free pint and trophies are awarded.

Enjoy a flat riverside run along the Thames with a chocolate themed aid station. Choose your own distance from 5km to ultra marathon within a flexible seven hour time limit.

A community running event in Manuden on 27 September 2026 with 10k, 5k and 1k races, on-road starts then off-road bridleways, water stations and medals for finishers. Funds raised support Sands, St Clare Hospice and village organisations.

MacTuffX London at Wimbledon on 27 September 2026 is a functional fitness race with ten Xercises and repeated runs. Options include solo, doubles, and relay formats over 10x400m or 10x800m, with a LITE weight division available.

Amport Trail Run on 27 September 2026 offers multi terrain 5k, 10k, 10 mile and canicross routes from Amport Cricket Club. Entry is pre-registration only and the courses feature marshals, first aid and on-course refreshments.

A multi terrain trail run along the Thames near Marlow offering a Half Marathon, 10k and a 1k Little Sprinters race. The event features chip timing, a finisher medal, on route water stations and an event village with facilities.

Nettlestone RAT Race is an in-person running event organised by Newchurch Primary School in Great Britain on 27 September 2026. Entry fees range from £8 for under 16s to £15 for those 16 and over.

A timed track event in Walton on Thames on 2 October 2026 offering 6, 12 and 24 hour formats with chip timing, 400 m laps and distance options from 5 km up to 100 mile equivalents. The track is limited to 100 runners at once.

A single-loop 100 mile trail from Plumpton Racecourse in the South Downs National Park, featuring over 12,000 ft of elevation, 12 aid stations, a 34 hour cutoff and free onsite camping. The race forms part of the South Downs Triple Crown.