Trail Running calendar near Hertfordshire 2025-2026

Guided 10 km trail runs on Thursley Common across heath, bog and the boardwalk voted Britain's Favourite Path. Friendly, non competitive group runs include sunset and night options with headtorches.

Take on the Badger Challenge at Beacon Hill, a six hour off road loop where you can run as many 3.3 mile laps as you like to reach half marathon or marathon distances. Dogs, canicross and rucking welcome, with a charity tree token option.

Join the G3 Series at Newlands Corner, Guildford for a scenic 10km or 15km trail run on Saturday 28 February 2026. Expect rolling Surrey countryside, friendly competition and a welcoming event village at the start.

Tackle a guided 30 mile trail on the South Downs Way from Harting Down, West Sussex, passing Beacon Hill and the ancient yews of Kingley Vale. This friendly group run from Running Adventures offers a scenic, supportive challenge for experie..

Join the Pitsford Water Trail Races on 1 March 2026 for scenic, fully marshaled trail runs around Pitsford Water with 10k and half marathon options. Enjoy village views, finisher medal and free digital photos in a friendly countryside event..

Run a scenic circular half marathon through Thetford Forest on varied trails with wildlife and traffic free paths. Enjoy pro photos, a finisher medal and podium prizes in this spring trail challenge.

Join a guided 10 km trail from Silent Pool, Albury along the North Downs Way through Netley Heath to Shere, with sunset or headtorch night options. Led by a qualified guide, the run features kit trials and sometimes an alcohol free beer.

Join Thunder Races at Harrold Odell Country Park for scenic 25 km and 50 km trail runs through woodland and countryside. Marked routes, aid stations and finish medals make it a welcoming challenge for trail runners of all levels.

Take on scenic but strenuous trails around Eastbourne and the Seven Sisters on 7 March 2026 with 10K, half, marathon or ultra distances. Expect chalk and woodland underfoot and sweeping English Channel views.

Join the Humanity Direct Amersham Ultra on 7 March for scenic footpath and bridleway routes of 10 km, 25 km or 50 km starting at Dr Challoner's School. Run or walk to fundraise for Humanity Direct and earn a finisher medal.

Tackle the Leith Hill Half Marathon, a scenic 13.1 miles cross country run from Dorking to Leith Hill Tower and back with about 1,800 feet of climbing. Enjoy stunning views, a commemorative medal and a full cooked breakfast at the finish.

Explore the Northamptonshire countryside at the 6th Hannington Hike on 8 March 2026 with 15.5 or 26.6 mile routes. Friendly checkpoints, hot drinks and a finisher certificate and badge make this a rewarding day out for walkers of any abilit..

Tackle the Hundred Hills 50 km, a challenging trail ultra at Stonor Park near Henley on Thames with two 25 km loops and 4000 ft of ascent. Five aid stations and hot food at the finish make for strong support.

Take on the Maverick Hampshire Trail at Matterley Basin, a scenic, undulating route through South Downs woodland with panoramic views to Cheesefoot Head. Choose 5 km, 16 km or a challenging 24 km half marathon and enjoy timed results, finis..

Explore the North Downs and Greensand Ridge on three new routes of 15, 20 or 30 Miles at the Sevenoaks Circular Challenge. Organized by LDWA Kent, this friendly event features indoor checkpoints, snacks and hot food at the finish.

The ZigZag 2026 Moo-rathon, Calf and Hen K at the Farm is a trail running event held at Hyde Hall Farm, SG9 0RU. Returning for its third year, the event offers multiple distance options including 10k, half marathon, full marathon, and ultra..

The Gratitude 25km is an exciting running event taking place in Broxbourne, UK. This race is designed for runners of all levels, promoting fitness and community spirit. Participants will enjoy a scenic route while challenging themselves to..

Join a guided 13 mile trail run around Guildford's Surrey Hills, visiting St Martha's Hill, Shere and the North Downs Way. Enjoy a friendly group pace, kit support and optional post run refreshments.

Take on the South Downs Way with Winter's End, a scenic trail event offering a 50 mile ultramarathon and two marathon options between Arundel and Winchester. Expect chalk ridge views, well stocked aid stations and a true point to point adve..

Run through the South Downs at Stansted House Trail Run, choosing 10 km, 16 km or 21 km routes that wind through woodlands, fields and rolling hills. Enjoy chip timing, a finisher medal and marshals for a memorable spring trail.