Trail Running calendar near Chalfont Saint Peter 2026-2027

An urban ultramarathon from a central London Run HQ with three distances including a 100km route that visits 100 plus landmarks. The event emphasises accessibility, on-course checkpoints, medals and a Top 100 finishers list.

A fully supported non stop 100 mile race along the South Downs Way with 12 aid stations, medical cover and a 30 hour cut off, running from the Winchester area to Eastbourne and featuring significant elevation and mostly trail terrain.

A 50 km non stop trail race along the South Downs Way inside the national park, with four aid stations, full medical support and a 9 hour cut off. The route starts at Matterley Bowl and finishes at Queen Elizabeth Country Park.

The Robertsbridge Midsummer 10K & 5K will take place in Robertsbridge on Friday 18 June 2027. You can run between 5 and 10 kilometers.

Race to the King is a trail ultramarathon at West Dean Gardens on 19 June 2027, offering 30 km and 50 km loop options plus 80 km and 100 km non stop circuits across the South Downs Way and Monarchs Way with timed results and support.

A muddy 5k obstacle course at The Rutland Showground in Oakham with staggered start waves and an age limit of 13 and over. Entry includes a fundraising pack, back sign, training support and a finishers medal.

A muddy 5k obstacle course around The Common in Southampton where participants climb, crawl and slide through obstacles while raising funds for cancer research. Waves run every 15 minutes and participants must be 13 or older.

A point to point 50 mile ultra and a marathon along the Three Shires Way through Bucks, Beds and Northants, finishing with a Grafham Water loop. Licensed trail races with aid stations, electronic tracking and mandatory kit requirements.

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.

Hydra 75 Mile Ultra is a 75 mile off road loop race at Denbies Wine Estate offering a single 1 mile lap, chip timing, and up to 30 hours to finish. Multiple distances and timed events take place on the same course.

A 100 mile off-road ultra at Denbies Wine Estate on 19 June 2027 using a flat one mile loop, full chip timing and multiple race options including 50 and 75 miles plus timed events.

A timed off-road Marathon and Half Marathon at Denbies Wine Estate near Dorking on a flat 1 mile loop with a flexible start window, up to 30 hours to finish, chip timing and a physical memento for all entrants.

At Denbies Wine Estate on 19 June 2027 runners complete one mile on the hour for 24 consecutive hours. The attended event includes chip timing, onsite tent camping and a substantial finisher medal and runs alongside a virtual option.

A 50 mile off‑road ultra at Denbies Wine Estate run on a flat-ish 1 mile loop. Chip timed, up to 30 hours to finish, with multiple distance options and a well stocked aid station.

A timed endurance event at Denbies Wine Estate where participants run one mile on the hour for 12 consecutive hours. Attended and virtual options run simultaneously and places for the attended event are limited.

A trail running event at Cranleigh Showground on Saturday 19 June 2027 with routes from 5 km to 53 km across Surrey hills and forests. Fully marked courses, varied outposts, free parking and an event village with food and a non alcoholic be..

A 5k obstacle course at Trinity Park with muddy climbs, crawls and slides, held in staggered waves. The grassy course is fairly flat and the event requires participants to be 13 or older.

A scenic trail half marathon on National Trust land at Dunstable Downs covering 21.2 km and 450 m elevation. The fully marked course has two aid stations, GPX files available and event facilities at the National Trust centre.

The Race for Life Pretty Muddy Cheltenham will take place in Cheltenham on Saturday 26 June 2027. You can run 5 kilometers.

A women's ultra trail event in the Surrey Hills with out and back routes from Denbies Wine Estate. Three course options, no cut-off times on course, and policies to support pregnant and parenting participants.