Trail Running Calendar South East (England) 2026-2027

Experience a scenic trail run around South East England's largest lake with distances ranging from 10km to a 50km ultra marathon. Enjoy undulating rural trails and wooded paths with stunning reservoir views throughout.

Experience the world largest inflatable obstacle course in Brighton. Navigate a 5k route filled with massive bouncy structures designed for a fun and active day out in East Sussex.

Trail marathon, half marathon and 10K at Watership Down on 14 June 2026. Single lap courses, mostly off road, with finishers items, race photos and managed road crossings.

Choose your distance at this flexible timed event along the flat Thames towpath. Run from 5k to an ultra within a 7-hour window and earn a unique finisher's medal. With a 1.5-hour start window, you can begin your run at a time that suits yo..

A multi-terrain 5 km race near Silverstone at Blackpit Farm with woodland, lakeside lawns and farmland. Finishers receive a bespoke medal and there is a virtual option to receive the medal by post.

Experience an atmospheric multi terrain summer evening run in East Sussex. Choose from a 10k, 5k, or junior race followed by a community BBQ and refreshments in the heart of Robertsbridge.

Experience a point to point trail race through the ancient woodlands and rural landscapes of three counties finishing with a scenic loop around Grafham Water.

Take on the Phoenix Centaur 100 Mile Ultra at Denbies Wine Estate, a flatish 1 mile off road loop with multiple distance options across the weekend. Enjoy central aid, chip timing and a Centaur medal and buckle for 100 mile finishers.

Run a marathon or half marathon at Denbies Wine Estate on 20 June 2026, tackling a scenic off road loop through the vineyards. Choose attended or virtual entry, enjoy chip timing and a collectible community medal while places remain limited..

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.

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.

Run through the historic landscapes of Horsell Common where the Martians first landed in literature. This volunteer led charity event offers trail routes from 2 km to 21 km in a scenic Site of Special Scientific Interest.

Experience a community focused multi terrain race through the picturesque Kent countryside featuring 10k, 5k, and free junior distances followed by finish line treats and local hospitality.

Experience a flat 10k run starting from Shoreham along the scenic Downslink paths toward Bramber. This chip timed event features a halfway aid station and a unique finisher medal for all participants.

Experience an enchanting twilight trail run through the private 220 acre Ashburnham Place estate. Choose between 10k, 5k, or junior distances while supporting four mental health and bereavement charities.

Experience a scenic trail run through the Cowdray Estate and South Downs National Park featuring distance options for all ages including dog friendly categories and a stacking finisher medal.

Test your endurance at this last person standing event in Alfriston where participants run 4.2 mile loops every hour. Enjoy a scenic farm course with full support facilities and sustainable race practices.

Explore the scenic Surrey Hills and North Downs Way with five trail distances ranging from 5 km to a 52 km ultra. Run through ancient forests and rolling fields with punchy hills and fully marked courses.