Trail Running calendar near Biddlesden 2026-2027

Evening 10 km trail run at Trifarm on mostly off road public footpaths and bridleways, part of a four race 2026 series with GPX route and on site parking.

A timed, lap-based Friday run along the Thames with flexible rock up and run starts; the £10 affiliated entry is donated to Rays of Sunshine and participants receive a double-sided charity medal.

A 100 km team endurance trek across the South Downs in September 2026, combining checkpoints, support crews and fundraising for The Gurkha Welfare Trust.

A multi-distance walk, jog and run along the River Thames from Putney Bridge to Henley in September 2026 and 2027. Distances span **10 km** to **100 km** with rest stops, catering, medical support and GPS tracking via an event app.

A Backyard Ultra at High Lodge, Thetford Forest where runners complete a *4 miles 880 feet* loop every hour; full, 12 hour and 6 hour entry options are available, with camping, basic aid station and chip timing.

Trail running in the Surrey Hills with 10k, 21k and 42k routes on chip timed, well marked courses, aid stations and finisher medals. Starts and finishes at Shere Recreation Ground with free parking and an event village.

A charity ultramarathon along the Thames from Upminster to Southend offering 10, 30 and 50 mile routes on mainly tarmac and hard trails. Organised by c2c to raise funds for Prostate Cancer UK with checkpoints and on-course medical support.

A series of fully marked, fully supported trail and ultra events in the UK that focus on a welcoming, inclusive atmosphere with generous cut-offs and runnable countryside courses.

An 81 mile ultra on the John Bunyan Trail in Bedfordshire, run as a single loop to be completed within 24 hours with 1,219 metres of ascent and seven aid stations.

Alton Trail Run on 12 September 2026 features a mainly off‑road 10 km trail through Dimmingsdale plus a 2 mile fun run, with medals for all finishers.

A scenic trail 10 km at Cleveland Lakes Nature Reserve organised by Cotswold Lakes Trust, with flat tree lined paths and water views; entrants must be 15 or older.

Autumn Wolf is a two day trail event in Warwickshire on 12 and 13 September 2026, featuring adult 10K and 5K routes plus junior 6K and 3K races across woodland, fields, streams and mud.

Phoenix Running Bedfordshire's Pick n Mix on 12 September 2026 uses a 5.3 km lapped course at Mowsbury Park. Runners choose distances from 5 km up to ultra with a flexible one hour start window and a seven hour time limit.

A trail running event on 13th September 2026 in Seale, based at Myrtle’s Courtyard, with marathon and half marathon routes along the Pilgrims Way and North Downs Way that raise funds for local charities.

A wine-themed running event at Denbies Wine Estate near Dorking offering a half marathon and 10 km through vineyards with wine stops, food and live entertainment.

On 13 September 2026 the Alf Shrubb Memorial returns to Slinfold with chip timed 10k and 5k trail races plus children’s races. The event finishes at Slinfold Cricket Club, supports local causes and awards a replica Alf Shrubb medal to finis..

Trail event at Bakewell Showground in the Peak District offering three distances with chip timing and on-course refreshments. Routes follow the Monsal Trail with views of Chatsworth House and the village of Edensor.

A fully marked 4 mile loop around Ilam with steep climbs, a river crossing and three summits, licensed by the Fell Runners Association and open to runners aged 18 and over.

A 10 km trail race in Sandridge, St Albans on 13 September 2026, starting and finishing at Sandridge Primary School playing field. Organizers publish route information and FAQs, and the event is supported by Sandridge Parish Council.

TrailFest at Holdenby House offers four traffic free trail distances inside a private estate, with routes on farm tracks, field edges and through a small wood, plus rolling hills and open countryside views.