Trail Running calendar near Brighton and Hove 2026-2027

About 52 miles across the South Downs National Park, a circular challenge from Plumpton Agricultural College visiting Lewes, Glynde and Alfriston with about 7,000 feet of ascent.

A ten day running series in Walton on Thames from 22 to 31 August 2026 offering daily themed rubber ducks and ten giant spinning ducky medals, with distances from 5 km to ultra and certified out-and-back routes along the Thames towpath.

The La Boucle des 2 Caps will take place in Wissant on Saturday 22 August 2026. You can run between 7 and 54 kilometers.

The Seven Sisters 10K Run/Walk will take place in Birling Gap on Saturday 22 August 2026. You can run 10 kilometers.

Full and half marathons through Richmond Park on 23 August 2026, starting at Sheen Gate, using park trails with refreshments and UK Athletics affiliation.

Point-to-point mixed terrain running from Mayflower Park following the Old Way pilgrim trail, with 15 Mile and Marathon options. The route includes a short boat crossing of the Hamble River and passes several historic landmarks.

Trail running from Lancing College across the South Downs with 5K, 10K, Marathon and 50K routes, marked courses, aid stations and chip timing.

Half and full marathons in Richmond Park on 23 August 2026, with multi-lap routes along the Tamsin Trail, refreshment points and UK Athletics affiliation.

A trail run entirely within Richmond Park offering half marathon and marathon distances, a route past the White House and park lakes, and on-course drinks and feed stations.

Functional fitness race at Mountbatten Centre Portsmouth on 23 August 2026 combining ten Xercises with options for 10x400m or 10x800m runs and solo, doubles or relay entry formats.

A steep, scenic trail run in Godshill offering a 5K one-loop option and a 10K two-loop option with 738 ft of climb. A relaxed community fundraising event with no chip timing and local charity support.

An 8 mile urban to trail loop from Bournemouth Square into Meyrick Park, fully marked and chip timed with one aid station and a beginner-friendly, mixed-surface course.

A trail half marathon from Creasey Park across the Dunstable Downs, run mainly on footpaths and bridleways. The self navigated course includes checkpoints and guide runners, a GPX file, on course drink stations and event facilities.

A **7.5 km** mostly off road trail loop around Ticehurst with marked and marshalled course, limited entries, prizes and tea and cake after the race.

Timed laps around Ardingly Reservoir with distances from 5 km to ultra, flexible morning starts, chip timing and bespoke finisher medals.

Two self-navigation trail races in Chelmsford on 23 August 2026: the hilly Admiral McHilly Trail of about 16 miles and the flatter Chelmer Trail of about 6 miles, with written route instructions and no course markings.

London Backyard Ultra is a loop race where runners complete a four mile loop each hour until one runner remains. It takes place at Frylands Wood Scout Outdoor Centre on 29 August 2026 and includes pitches, showers, and race photography.

An obstacle mud run on a permanent assault course near Dorking, Surrey, offering 5 km and 10 km options, multiple laps, and entries for solo runners, teams and charities. The course includes mud, water, walls and climbing obstacles.

30 August 2026 in Alexandra Gardens Windsor offers 10K and half marathon routes with views of Windsor Castle. The event includes chip timing, free race photos and an event village.

A 15-mile trail race near Danbury on 30/08/2026 featuring 1600 ft+ of ascent, technical singletrack, locally made trophies and cash prizes including a course-record bonus.