Trail Running calendar near Brentwood 2026-2027

A 24-hour relay at Wasing Park, Reading on 6–7 June 2026 with Solo, Pair, and Team entries on an 8 km trail lap, event camping and an event village, plus charity entry options and tiered team pricing.

Backyard Ultra at Chilton Manor Farm in Chilton Candover is a private, sold out backyard ultra on a 6.706 km loop around Godsfield Copse. Runners repeat a 4.16666 mile lap each hour until only one runner completes the next lap.

Run laps through Denbies Wine Estate in the Fire Horse Run, a timed off road challenge on an undulating 5.3 km loop with distances from 5 km to ultra. Pick as many laps as you like within a seven hour window for a flexible, scenic race day.

A 46 mile (74 km) annual run or walk around Cambridgeshire that starts and finishes at RAF Wyton, visiting four former RAF Pathfinder Force airbases. Options include solo completion or team relay with eight checkpoints on the route.

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 5 km muddy obstacle course at Willen Lake on 06 June 2026 where participants climb, crawl and slide through timed waves. Entry fees and a minimum fundraising target apply, with on-site facilities and accessibility support available.

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.

A country running event in Suffolk that passes through Ousden and uses road and trail routes. Distances offered: 5k, 10k, half, full and ultra, with aid stations every 10k and parking included.

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.

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.

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.