Trail Running calendar near West Sussex 2026-2027

Run 1 mile each hour for 24 consecutive hours at Denbies Wine Estate in P24 The Longest Attended Day, an off road challenge for attended and virtual runners. On site camping and a hefty finisher medal await but places are limited.

Experience the beauty of the South Downs National Park with distances ranging from 30km to a 100km nonstop ultramarathon. Enjoy fully supported trails passing historic landmarks and stunning coastal vistas near Chichester Harbour.

Join the Phoenix Hydra 75 Mile Ultra at Denbies Wine Estate in Dorking for a scenic 1 mile off road loop with chip timing and a staffed aid station. Distances run from 12 hour to 100 miles and all entrants receive a free memento.

A 5 kilometre muddy obstacle course at The Common in Southampton, with staggered wave starts and a minimum fundraising target. Participants must be 13 or older and receive a fundraising pack and finisher medal.

A 24 hour lap event near Caldecotte Lake in Milton Keynes offering individual and team entries, junior options and camping. Facilities include showers, marquees, free drinks and snacks, with hot food available on site.

A trail half marathon across the National Trust's Dunstable Downs covering 21.2 km with about 450 m of ascent. The marked route features two aid stations, a four hour time limit, and a limit of 250 runners on 21 June 2026.

Volunteer organised trail races on Horsell Common with family friendly distances from a 2 km kids race to a 21 km option. Proceeds support local charities and the event emphasises minimal environmental impact.

A 10 km trail run at Twisted Tree Brewery on the Tusmore Estate near Bicester. Mostly off-road with a canicross option, chip timing, medal, pint cup and a free drink included.

A community 10 km, 5 km and free junior run around The Moor in Hawkhurst on 21 June 2026. The multi terrain undulating course features finish line cake, a free half pint for finishers and on site stalls.

Circular cross country routes of 26 miles and 18 miles around Baldock across undulating fields and woodland, with checkpoints, refreshments and a certificate for finishers.

Trail races in Trent Country Park, Enfield offering 2 km, 4.5 km and 10 km distances. The senior race is chip timed and run under UKA rules while junior and fun races have additional marshals.

Experience the twilight beauty of Ardingly Reservoir during this midsummer evening run. Choose between a 5k or 10k distance on a scenic undulating trail featuring a fully stocked aid station and finisher medals for all.

MacTuffX Bournemouth on 21 June 2026 pairs ten timed Xercises with repeated runs in classic and double distance formats. Entries are available for solo, doubles and five-person relays, with a LITE weight division and live event leaderboard.

A flat, timed 10 kilometre out-and-back from the toll bridge in Shoreham to Bramber and back on 21 June 2026, with a halfway aid station, full marshals, 4x4 pickup and a new medal; entries open 20 March.

A single lap fully off road 10K trail through Panshanger Park on 21 June 2026, passing a 500 year old oak, the Queen’s Wood and the Mimram River. The event includes chip timing, a sustainable finisher’s medal and a Family Fun Run.

A twilight trail race at Ashburnham Place with 10k, 5k and a junior run. The event raises funds for four charities and offers on site parking, a bespoke medal and on site food.

Run the Seasons at Cowdray on 26 June 2026 offers 3km and 5km races plus a 10km with dog friendly CaniRun options. The event includes stacking medals, course maps, free photos and an on site BBQ and bar.

A last person standing backyard ultra near Alfriston where runners repeat hourly laps of at least 4.167 miles until only one can start another lap. Limited field, token checks each loop, basic aid station and barn facilities.

A seasonal trail running series at Cowdray Estate featuring 5km, 10km and 10 mile races across spring, summer, autumn and a winter night run, with a dedicated kids series and a summer event that includes a BBQ and bar.

Trail running at Cranleigh Showground on 27 June 2026 with five marked routes through Winterfold, Hurtwood Forest, Leith Hill and the North Downs Way; distances range from 5 km to 52 km and routes have varying outpost support.