Trail Running calendar near Seaford 2026-2027

Experience the beauty of Ardingly Reservoir during this relaxed midsummer sunset run. Choose between a 5K or 10K distance on an undulating trail course featuring scenic water views and a fully stocked aid station.

A three-race Forest Five (mile) series at Jubilee Retreat on 6 June, 4 July and 1 August 2026, with single-race and discounted series entry, age-category aggregate trophies and a third-race ELVIS fixture with team prizes.

The Pretty Muddy 5k at Cassiobury Park is a mixed-terrain obstacle course featuring muddy climbs, crawls and slides. The event is for ages 13 and over, runs in staggered waves, and includes on-site facilities plus fundraising support and a..

A 5k Pretty Muddy obstacle course at Prospect Park, Reading, featuring grass terrain, steep slopes and woodland sections. Obstacles include climbing, crawling and sliding; participants must be 13 or older and events support Cancer Research..

A narrative, self‑navigated trail race of about 7 miles at the Chignal Fete on 06 June 2026, held under UK Athletics rules with a written route description and no course markings.

Trail running at Wendover Woods on 7 June 2026 offering a half marathon, a 10k and a junior run on hilly forest trails with route maps, an on site cafe and spectator attractions.

Coombe Hill Fell Race in Wendover on 7 June 2026 is a 7 km BS Category fell run with a steep climb and 220 m of ascent. Registration is at the Shoulder of Mutton pub and entry includes a post race pint with a reduced fee for FRA members.

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.

A coastal running event on Margate Main Sands following ten bays across sand, promenade and cliff tops. Two distance options are available: approximately 15 miles or a 4Bay 10k held at low tide with coastal stacks and arches.

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 new trail event on 08 Jun 2026 at the Plough and Harrow in Litlington celebrating Multisport Management's 20th anniversary. The self navigated 10 km course runs mainly on footpaths and bridleways with a sweep runner and a non competitive..

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.

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.