Trail Running calendar near Buckinghamshire 2026-2027

Trail races at Alice Holt Forest near Farnham offering 10 km and half marathon courses with live chip timing, finisher medal and canicross friendly entries.

Experience a 10k run through the National Trust Brockhampton Estate. This limited entry event features a hilly course with views and welcomes cani cross participants.

Race for Life at Prospect Park in Reading offers 3k, 5k and a 10k that is two laps of the 5k course. The event is organised by Cancer Research UK, is chip timed and includes fundraising support and a finisher medal.

Multi-lap timed event along the Thames in Walton on Thames on 7 June 2026 offering distances from 5 km to ultra. A flat 5.3 km out-and-back course, flexible start window, themed ducky incentives and medal options.

A village running event in Danehill, West Sussex with a 1 km family run plus 5 km and 10 km trail races on an undulating course through the recreation ground and school playing fields. Proceeds are shared among local charities.

A flexible 6-hour timed run along the flat, scenic Jubilee River near Slough. Run as many laps as you like on the 5.24-mile course, with everyone receiving a finisher's medal. The route offers countryside views and a riverside path.

A 7 hour timed event on the River Thames at Wraysbury, where runners choose their distance from a 3 km minimum up to ultra distances with marked laps, aid stations, medals and goody bags.

A flexible Friday run along the Thames. Choose your start time and your distance, from a 5k lap to an ultra. It's a smaller event with a lower fee, but you still get one of the famous Phoenix medals.

Scenic 10 and 20 mile off road trail races around Fotheringhay on 13 June 2026, with camping available and marked, marshalled courses. Participants are asked to bring a cup or water bottle to support eco friendly practices.

A 100 mile non stop foot race along the South Downs Way from near Winchester to Eastbourne, with 12 aid stations, full medical support and a 30 hour cut off. Mandatory kit, pacing and crew rules apply and qualification is required.

A 50 km trail ultra through the South Downs National Park with about 4000 ft of climb and a 9 hour cutoff. The course is fully marked, supported by four aid stations and finishes at Queen Elizabeth Country Park.

A multi-distance trail event in the Cotswolds on 13-14 June 2026 centered at Cirencester basecamp, offering strong route support, GPS tracking, regular rest stops, medical cover, camping and finishers awards.

Trail races at Bewl Water near Lamberhurst Kent include 50 km, marathon, half marathon and 10 km options on mainly off road trails and quiet country lanes with lake views.

An inflatable obstacle event in Brighton on 13 June 2026 offering 2.5 km, 5 km, 10 km and 15 km options on a 2.5 km lap course with multiple inflatable obstacles, music zones and onsite facilities for participants and spectators.

A timed multi-lap event on a flat 5.3 km out and back towpath course along the Thames offering distances from 5 km up to ultra with flexible start times, themed ducky incentives and a large spinning medal for finishers.

MacTuffX London on 13 June 2026 stages functional fitness races with ten Xercises and running. Entries include Solo, Doubles and Relay formats, with standard and LITE weight divisions and an age limit of 18 plus.

A muddy 5k obstacle course at Sandwell Valley Country Park organised by Cancer Research UK, with wave starts, on-course obstacles and a finishers medal. Entry fees and a minimum fundraising target apply; participants must be 13 or older.

An evening trail run at Bodenham Arboretum on 13 June 2026 offering 5 km and 10 km options; mixed-terrain routes, online-only entry with limited places, and funds raised for local charity and scout group support.

A backyard ultra at Breakheart Quarry in the Cotswolds where runners repeat a 6706 m loop every hour until one person remains. Camping and on-site facilities are provided; early bird entry is £75.

Scenic trail races near Kingsclere, Hampshire offering marathon, half marathon and 10k on clearly marked single-lap routes with marshals and nearby parking.