Trail Running calendar near Horndean 2026-2027

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.

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.

Trail running at Wilkswood Farm, Swanage, with three measured coastal routes (23 km, 13 km, 7 km), technical rocky sections and varied outpost support. Dog entries are sold out.

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 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.

A 10 km trail race on the private Lulworth Estate in south Dorset, combining a village fête atmosphere with a scenic, hilly course on chalk downland and woodland paths. Proceeds benefit the Coombe Keynes Trust.

Run as many 3.28 mile laps as you wish along the scenic Stroud Waterways canal. This flexible timed event caters to all distances from 5k to ultra marathon with a seven hour time limit and a relaxed start window.

A community cross country 5km run and walk around Neptune and Paradise Wood with refreshments at The Plough and category awards across age groups. Walkers may bring dogs on leads and entries are limited to 250.

Round 3 is a 5k trail race at Langdon Discovery Nature Park on 16 June 2026, run as two laps of a 2.5k circuit. The event is for ages 12 and over, supports local charities and provides on-the-day entries at the same price as online.

A multi-terrain 5 km race near Silverstone at Blackpit Farm featuring woodlands, lakeside lawns and farmland. Finishers receive a unique 5K medal and a virtual completion option is available; parking at Blackpit Brewery is free.

A four evening summer series at Dinton Pastures with 5 km and 10 km races plus a 2 km kids event. Off road and traffic free, the series offers chip timing, finisher medals, instant results and on site first aid.

Community 5k, 10k and junior races in Robertsbridge on a multi terrain, undulating course with volunteer marshals, a BBQ, post-race bar, bespoke medals and free parking.