Trail Running calendar near Welwyn 2026-2027

We have found 567 Trailruns within 80 miles of Welwyn. See below where and when you can find the races.

Triple Trail Races on 19 September 2026 at Loddington Farm offers 25 km, 50 km and 100 km routes across Kent's North Downs Way, Greensand Way and Weald Way, with on site race village, camping, food vendors and recovery facilities.

MacTuffX Watford on 19 September 2026 offers solo, doubles and relay entries over two interval formats, 10x400m and 10x800m. All entrants must be aged 18 or over and fees vary by category.

Trail races near Clipston on Sunday 20 September 2026 include a Half Marathon and a Country 5 mile route across bridleways and footpaths. Medals and homemade cakes are provided for all finishers.

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.

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.

Pippingford Park hosts the London South East Spartan Weekend on 26 and 27 September 2026, with races from a kids course to an Ultra 50 km. The Ultra includes the British OCR Ultra Championship and a Trifecta option is available.

A 10-mile trail race at Chilton Manor Farm featuring private trails, 240 m of elevation and a 1-mile Yew tree-lined finish. The route includes water stations, medics and a bespoke finisher medal.

The Endless Garden is a last-person-standing Backyard Ultra marathon. Runners tackle a 4.167-mile loop every hour from a base at The Waggoners Pub, where spectators and crews are welcome. The event includes drink vouchers and a special pub..

A forest marathon and a shorter route from Memorial Hall in Henley in Arden, Warwickshire, running through early autumn woodland with staffed checkpoints and a hot finish meal. Surplus funds support the Heart of England Forest.

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.

Experience a flexible trail event at Billingford Lakes with a 5.3 km lap course through grasslands and rugged trails. Choose between 4 and 6 hour sessions to complete your preferred distance and earn your bespoke finisher medal.

Run Sandringham on 27 September 2026 features a Half Marathon, 5K and Community Mile around the Sandringham Estate. The event includes chip timing for the Half and 5K, water stations, medical support and on site parking.

Volunteer run charity 10k and 3k through farmland near Grantchester on 27 September 2026, supporting Maggie’s Centre Cambridge and Addenbrooke’s Charitable Trust. Chip timing, medals, trophies, parking and post run services available.

Ten mile trail race at Eridge Park on 27 September 2026 featuring steep climbs, muddy and technical single track, GPX course maps, finisher memento, trophies and a free pint and cake for finishers.

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.

Experience a scenic off road run through the fields surrounding Manuden with distances of 10k, 5k, and 1k. Enjoy locally organized routes with course water stations and finisher medals for all participants.

MacTuffX London offers a unique interval running competition in September 2026. Participants can compete in solo doubles or relay categories over repeated 400 meter or 800 meter distances in Barking.

Multi terrain 5 km and 10 km races plus a canicross event at Amport Cricket Club on 27 September 2026. Entry is by pre registration only and the courses include trails, tarmac and single track sections.

A charity hike or run on Sunday 27 September 2026 around Charnwood, starting and finishing at Beacon Hill Country Park. The route is about 16 miles and visits Beacon Hill, Bardon Hill and Old John to raise funds for local people in need.

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