Trail Running calendar near Henley-on-Thames 2026-2027

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.

Run the Maldon Ultras on 20 and 21 June 2026 in Maldon, with 100 mile, 50 mile and 30 mile lapped races across fields, woodland and vineyards with estuary views. Small fields and scenic off road laps make for a friendly yet fierce ultra.

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.

Test your endurance at MacTuffX Bristol with interval based running challenges. Choose between solo, doubles, or relay formats across 400m and 800m repetitions in this organized summer event for adults.

The Dunstable Downs Half Marathon is a scenic trail race through the National Trust's Dunstable Downs estate. Its hilly 21.2 km course features ridge views, climbs, and a well-stocked aid station. The event is capped at 300 runners and incl..

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 multi terrain 10km run through the private Tusmore Estate. Enjoy scenic views and celebrate your finish at the Twisted Tree Brewery with a medal and a well earned drink.

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 circular cross country route through the undulating fields and woodlands of North West Hertfordshire. Choose between 26 and 18 mile courses starting from Baldock with panoramic countryside views.

Experience a scenic trail run through the woods and fields of Trent Country Park with chip timed races for seniors, juniors, and children.

Join this athletic event in Bournemouth featuring high intensity intervals of 400m and 800m. Choose between solo, doubles, or relay formats for a unique group or individual experience.

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 evening trail run at The Valley in Evesham featuring a two lap 10 km course through the country park. This pet friendly event offers a simple racing format with water stations and onsite facilities.

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.

Race two of the 2026 Trifarm trail series, this 10K summer run is over 95% off-road on public paths. Starting near a humpback bridge at Trifarm in Boreham, the anticlockwise course finishes with a lap around the lake.

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.

Complete three races over three days to achieve a full marathon distance at the Colworth Estate. This multi terrain event in North Bedfordshire offers distances of 5 miles, 8.1 miles, and a half marathon.

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.

Join this intimate trail event at Hyde Hall Farm featuring distances from 5k to an Ultra Marathon. Enjoy undulating farm tracks and grassland with secure parking and bespoke medals provided for all finishers.

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.