Trail Running Calendar South East (England) 2026-2027

G3 no.3 is a running event at Newlands Corner, Guildford on 28 February 2026 offering 10 km and 15 km distances with paid entry and entries closing on 26 February.

Guided 30 mile trail run from Harting Down along the South Downs Way, visiting Beacon Hill, Cocking Down and Kingley Vale. Presented as suitable for first time ultra runners, run at a group pace with practical support and route guidance.

Chocothon is a friendly timed lap on a flat 5.3 km riverside towpath, letting you complete as many laps as you can within a seven hour window. Distances from 5 km to ultra, medals and aid stations make it perfect for all abilities.

A trail running event at Breamore House offering 5k, 10k, 5k Canicross and a half marathon on mainly rural trails, with marshals, aid stations and finisher medals.

Run a scenic multi terrain 10km starting by the River Thames near Windsor & Eton Brewery. The route follows the Thames and Jubilee Rivers through Dorney and Eton Wick. All finishers get a medal, a drink, and a commemorative pint cup.

A guided *10 km* trail run from Silent Pool near Guildford, using North Downs Way and Netley Heath paths, led by a qualified guide. Group-paced, two 2026 dates, £16 entry and car parking at the meeting point.

A trail championship at Matterley Basin near Winchester on 4 March 2026, offering 10 km and 20 km races run on 5 km laps with mass starts and on-course water stations.

This event offers three distances—50 km, 25 km, and 10 km—through the scenic Chiltern Hills, starting and finishing in Amersham. It supports the charity Humanity Direct, with free entry available for fundraisers. The route explores villages..

Run the iconic white cliffs of the Seven Sisters on England's south coast. Choose from four distances, from a 10K to a 32.5-mile Ultra, along the dramatic chalk coastline near Eastbourne. The event is part of the Endurancelife season challe..

Brutal @ Chawton offers a 5k or 10k off-road challenge on 7th March. The course combines muddy, water-filled terrain on Brick Kiln Farm with the technical trails and mining holes of Chawton Forest. A canicross option is available for runner..

Run scenic laps along the Thames towpath in Walton on Thames at the Ladybird Run, on flat off road trails with timed entries or a one hour rock up and run start window. Pick 5 km to ultra distances and complete as many laps as you like with..

A 13.1 mile out and back trail from Dorking to Leith Hill Tower with about 1,800 feet of ascent, four water stations and marshals on course. Entry includes a reusable medal, race number, beer and a cooked breakfast, with profits donated loc..

Run a flexible-distance coastal challenge with views of the Isle of Wight. Choose from 5K to ultra-marathon on a mixed-terrain, lap-based course. Enjoy an aid station and a relaxed start window.

The Steyning Stinger is a spring trail running event in early March, offering marathon, 30k, and half marathon distances. It is a licensed and UTMB-indexed race with a fully supported course. Participants receive a sustainable medal and fre..

A women's trail running event at the Culden Faw Estate near Henley on Thames. It features three different trail distances: 13 km, 6.5 km, and a 3 km option.

This 10K course explores the Kent countryside, mixing roads and trails along the River Darent. Runners start at Heathside Sports Ground and finish with a bespoke medal. The village hall offers facilities, and marshals guide the way on roads..

Event Overview The Hundred Hills 50km is a 50km trail ultra marathon taking place in the Chiltern countryside. The event starts and finishes at Stonor Park, an 850-year-old estate. Course Details The route consists of two different 25km loo..

Explore the trails of the South Downs National Park near Winchester. Choose from three scenic routes of varying distances, all starting from the Matterley Basin Grand Prix Track. This dog-friendly event offers a hard-packed course with pano..

Explore new scenic routes on the North Downs and Greensand Ridge in West Kent. This walking and running event offers three distances with indoor checkpoints providing refreshments. Now in its 49th year, it finishes with hot food at West Hea..

Take on Phoenix Running's Octopus Run on 15 March 2026 at Walton on Thames for a scenic towpath challenge along the River Thames, with distances from 5 km to ultra and flexible start times. Finish your effort and collect a bespoke finishers..