Trail Running calendar near Brentwood 2026-2027

A summer 10k through country lanes around Mount Ephraim Gardens in Kent, with a separate junior run and downloadable route maps. The event raises funds for Oasis Domestic Abuse Services and includes a bespoke medal and garden entry.

Riverside races from Barnes along the Thames Path offering 10 km, half marathon and marathon courses with marked routes and checkpoint support.

Mixed terrain 10k and half marathon around Wye with valley views and the historic chalk crown, based at Wye Village Hall with a small event village, toilets and refreshments.

Four hour team relay at Minley Manor, Hampshire where teams of four run repeated 4 km off road laps through woods and grassland. Male, female and mixed categories have prizes for the top three teams in each.

The Stopsley Trail Race on Sunday 9 August 2026 offers 5K, 5 miles and 10 miles on scenic undulating trails along the Bedfordshire and Hertfordshire border. Entries include chip timing, bespoke medals, free photos and participant goodies.

Summer charity trail event in Cold Norton offering 10 km and half marathon routes on grass, tracks and paths. Aid stations are cupless so participants must bring a cup or bottle. Proceeds support Farleigh Hospice.

Race one of the AWT Backyard Ultra Series in Ruislip on 9 August 2026 uses six hourly 5 km laps for a total of 30 km. Entry is free and the event is held in person with free parking.

A guided 16k trail run at High Lodge in Thetford Forest with forest facts and practical trail running tips. Runs are led at a conversational pace and groups are matched by ability to help participants enjoy the woodland routes.

Beat The Tide 10k runs along Worthing and Lancing beaches with an aid station at 5 km, canicross welcome and on-site drinks and pizza at Perch on the Parade.

A four-race summer series at Dinton Pastures offering 5 km, 10 km and a 2 km kids event. Off-road, traffic free course with chip timing, medals, marshals and on-site support.

Midweek Chasing Numbers at The Last Hop in Staines is a flexible seven hour time challenge along the River Thames with distances from 3 km up to 50 km and ultra options.

A 7 hour timed running event on a looped course along the River Thames in Egham. Distances range from 3 km up to 50 km with aid stations, goody bags and distance pins available.

Two trail ultramarathon options follow the Harborough Round around Market Harborough, with GPX files, multiple aid stations, TRA licensing and a comprehensive mandatory kit list for runners.

A guided 10 km trail run through the Chiltern Hills finishing with a brewery tour and tasting at Tring Brewery, including a drink and on‑site pizza options.

Special-edition Rat Race obstacle event at Forest Facility near Stamford, featuring a 4 mile loop with about 60 obstacles, family and teen options, and additional on-site activities. Proceeds support Project Jungle rainforest conservation.

Off road half marathon in Henfield on 16 August 2026 with riverside and disused railway sections, flint paths and stiles; facilities include changing rooms and free parking.

A trail event at the Black Bull near Chelmsford on 16 Aug 2026 offering a 15 mile trail run and a 15 km social hike. The British Heart Foundation is the charity partner and finishers receive a medal and a free drink.

A 7-hour Time Challenge along the River Thames near Staines with flexible starts and distances from 3 km to 50 km. The event is licensed by the Trail Running Association and offers medals, distance pins and a goody bag.

An evening trail race of **10 km** on the original anti-clockwise course, with a GPX route, event T-shirt, timed finish and post-race coffee and cake.

A 7 hour timed riverside challenge in Egham with a 3 km minimum to earn a themed medal, goody bags including a vegan option, distance pins and aid stations. Flexible distances from 3 km up to ultra distances under age rules.