Trail Running calendar near West Sussex 2025-2026

Run the Martian Race at Horsell Common on 21 June 2026 and follow routes through the sandpits immortalised in H.G. Wells The War of the Worlds. Volunteer organised and charity focused, with distances for all ages.

Take on the Dunstable Downs Half Marathon, a scenic 21.2 km trail with steep climbs and panoramic countryside views. Limited to 300 runners, this rugged UTMB World Series qualifier promises a memorable off road challenge.

Join the Summer Run the Seasons at Cowdray Estate on 26 June 2026 for scenic 5km, 10km and dog friendly canicross routes past the polo lawns, ruins and the South Downs. Celebrate at the finish with an interlocking medal, free photos and a B..

Enjoy scenic Thames Valley trails at Marlow Rugby Club with 5K, 10K and Half Marathon options on well marked off road courses. Chip timing, free race photos and a themed finisher medal make this a fun, sustainable event for all abilities.

Enjoy an inaugural trail run from Housedean Farm on the South Downs, with scenic views across Lewes and Plumpton. Choose the half marathon or 10K on mixed gravel and well kept trails, with aid stations and a finisher medal.

Join a guided 10km trail run around the Devil's Punchbowl in Hindhead, enjoying rolling hills and a scenic pause with great views. This friendly group paced run is led by an experienced guide and runs at sunset or by headtorch in winter.

Event overview The SATURN Midweek Chasing Numbers event takes place on Friday, 3 July 2026 at Wraysbury Skiff & Punting Club, Egham (TW20 0AE). It is a 7 hour Time Challenge with flexible start times available throughout the day. The ev..

Take on the Full Essex Way Ultra, an 82 mile journey from Epping tube station to Harwich lighthouse across varied trails, tracks and roads. With just 65 places and a 24 hour cut off, this iconic challenge supports Essex Wildlife Trust.

Follow the Serpent Trail from Petersfield through the South Downs, heath and woodland with distances from 10 km to 100 km. Camping, coach transfer, a kids race, food and a licensed bar make it a weekend festival for runners and walkers.

Join the Bishop's Stortford Mitre on 5 July 2026 for community 10k, 5k and a fun 1K kids race on traffic free country lanes at Jobbers Wood. Support the Mitre Fund and enjoy chip timing, a finisher T shirt or a tree planted in your name.

On 5 July 2026 the Chiltern Ridge Half Marathon offers a scenic off road challenge along The Ridgeway near Wendover, with rolling climbs and woodland views. Entries are limited to 350 runners so book early for this memorable trail experienc..

Join a guided 10 km group trail run through Thursley Common's heathland and boardwalk, taking in pine woods, peat bogs and open ponds. A relaxed social outing ideal for steady trail runners and nature lovers.

Race to the Stones runs along The Ridgeway, Britain’s oldest footpath, ending at Avebury Standing Stones. In 2026 it offers 50 km and 100 km distances, either non-stop or split over two days, with a ~25 hour cut-off, on 11–12 July. Runners..

The Spitfire Scramble is a unique 24-hour multi-terrain relay or solo race held at Albyns Farm, London Borough of Havering. Participants can run solo or in teams of two to eight, tackling a 5.75-mile lap repeatedly through day and night. Th..

The The Maverick Chilterns Trail will take place in Wendover on Saturday 11 July 2026.

The 24 Cider Challenge is a 24-hour solo running or walking event held at Myncen Farm in Blandford Forum, Dorset. Set on a privately owned farm, the course features undulating trails through fields, grass, wildflowers, crops, and dusty trac..

The Cider 5K.ish is a one-lap, 5-kilometre trail run/walk set on Myncen Farm in Minchington, near Blandford Forum, Dorset. The undulating course takes you across fields, grass, wildflowers, crops and dusty tracks on private farmland with pe..

BigHeat CAMP FIRE is a festival style trail weekend at Mill Farm in the Surrey Hills, pairing single lap scenic trails with a fiery communal vibe. Choose from 2 km to a 50 km ultra, then unwind with camping, live music and yoga.

The Cider Challenge Solo is a 12-hour trail-running event held on a privately owned farm in Dorset (Myncen Farm, Minchington, Blandford Forum, DT11 8DH). Designed for solo runners, with the option to enter as part of a team, participants ha..

Run through scenic Wendover Woods with 5K and challenging 10K trail options plus a 1.5K accessible loop. Limited to 500 runners, with chip timing and a finisher medal for all.