Trail Running Calendar South East (England) 2026-2027

A muddy 5k obstacle course at Stoke Park in Guildford on 18 July 2026 with staggered wave starts. Entry fees and a minimum fundraising target apply; participants must be 13 or older.

A group trail run from Dorking Station through Denbies Wine Estate and the North Downs, followed by stone baked pizza and a guided Denbies wine tasting. Options include an 8 km loop or a 5 km walk.

A trail running event at Pippingford Park Manor with 10 and 5 mile options on hard packed forest trails, 1568 ft of ascent, notable climbs and downhills, route maps and GPX files, bespoke medals, and free parking.

A hilly multi loop trail event around Holmbury Hill offering a half marathon and a same day 10 mile option, with six drink stations, first aid support, free parking, and a commemorative medal for finishers.

A chip timed five mile trail race through Queen Elizabeth Country Park in PJC's 50th anniversary year, with woodland terrain, refreshments, and a capped field of 250 entrants.

A 10 km mixed-terrain event around Valley Park and Knightwood split into five timed stages, featuring chip timing, marshals, a kids Twiglet Tour, on-course water and food at the finish.

A seven hour timed riverside challenge in Egham with flexible starts, a signed loop, medals for 3 km finishers, goody bags including a vegan option, distance pins from half-marathon upward, and aid stations on each lap.

A Friday running event on a flat 5.3 km out-and-back riverside lap near Walton on Thames offering distances from 5 km to ultra and finishers' medals including spinning Rubber Ducky designs.

A timed, lap format run along The Itchen Way in Winchester with a professionally measured, permitted course. Runners may complete multiple 2.62 mile laps up to ultra distance and receive a bespoke finisher's medal and aid station provisions..

Trail races from Queen Elizabeth Country Park across sections of the South Downs Way, offered at 12K, 25K and 50K, with marked routes, stocked aid stations, marshals and a serviced event village plus chip timing and finish medals.

A daytime trail event at Denbies Wine Estate offering marathon, half marathon, 10K, 5K, canix entries and kids races. Routes run through rolling, muddy Surrey Hills with marked sections, self-navigation on the marathon first half and mandat..

A circular half marathon trail run on the Ridgeway that visits Ashdown House and the original White Horse Hill. The route is described as undulating and the event is held under UK Athletics rules with a Trail Running Association permit.

Trail races at Summerleaze Park near Maidenhead offer 5K, 10K and a half marathon on flat, soft-trail terrain beside Summerleaze Lake. The event includes chip timing, medals and race photos and supports Maidenhead United Community Trust.

A 7.5 km loop trail race around Westfield with over 80% off-road terrain, a fully marked and marshalled course, post-race tea and cake, prizes for first male and female, and a 60-person entry limit.

A looped trail event from a Guildford basecamp on the North Downs Way offering 50 km, 25 km and 10 km options with covered rest stops, medical support, GPS tracking and camping and transfer services.

A volunteer run 10 mile multi terrain race on the South Downs with mile markers, two water stations and prize categories. The event includes a free kids fun run and on site refreshments with homemade cakes.

A 49 mile point to point ultramarathon along the Thames Path from Oxford to Henley on Thames with three staffed checkpoints, mandatory navigation kit and a minimum average speed requirement. Finishers receive a bespoke medal and choice of s..

A timed Friday run on a 5.3 km out and back towpath loop along the River Thames. The event is promoted as a ten pound charity entry for Rays of Sunshine and includes a double sided finisher medal.

A 47 mile point to point ultramarathon along the Thames from Henley to Kingston, with three checkpoints offering food and drink, mandatory navigation kit and a required average pace to remain in the race.

A 103 mile trail race along the North Downs Way from Farnham to Ashford on 8 August 2026. Runners cover about 11,000 ft of ascent with a 30 hour limit, 12 aid stations, mandatory kit and qualifying requirements.