Trail Running calendar near Croydon 2026-2027

A timed, multi-distance event at Ardingly Reservoir with lap-based 7 km out-and-back course, a seven hour limit and flexible start window; finishers receive a donut medal and a no-medal entry option is available.

Two self-navigation trail races in Chelmsford on 23 August 2026: the hilly Admiral McHilly Trail of about 16 miles and the flatter Chelmer Trail of about 6 miles, with written route instructions and no course markings.

A last man standing backyard ultra on a 4.167 mile loop in the grounds of Gosfield School, Essex. Runners repeat the loop on the hour until one remains; the event includes camping, showers, a small aid station and a £150 winner prize.

London Backyard Ultra is a loop race where runners complete a four mile loop each hour until one runner remains. It takes place at Frylands Wood Scout Outdoor Centre on 29 August 2026 and includes pitches, showers, and race photography.

An obstacle mud run on a permanent assault course near Dorking, Surrey, offering 5 km and 10 km options, multiple laps, and entries for solo runners, teams and charities. The course includes mud, water, walls and climbing obstacles.

30 August 2026 in Alexandra Gardens Windsor offers 10K and half marathon routes with views of Windsor Castle. The event includes chip timing, free race photos and an event village.

A trail race called Muntjac 15 linking five woodlands with hills, woods and single-track sections on 30 Aug 2026. The event is full with a waiting list and the organiser covers the service fee so entrants pay no surcharge.

A mixed trail and road out and back race from Woldingham School. The half is one 13.1 mile lap and the full is two laps, with notable climbs, varied scenery and on course aid stations and goody bags.

Experience a scenic trail run through the grounds of Shoreham Woods in Kent. This chip timed 10k event features woodland paths and supports the local environment and dementia research.

MacTuffX Bedford on 30 August 2026 is a functional fitness race at Barkers Lane combining ten Xercises with running in solo, doubles and relay formats. A LITE weight division is available and results appear on a detailed leaderboard.

Day nine of the Duck n Run Totally Quackers series on 30 August 2026 in Walton on Thames features timed laps on a flat riverside out and back course, with distances from a single 3.28 mile lap up to an ultra within seven hours.

A trail event in Felsted on 31 Aug 2026 offering approx 10 miles or 10 km routes with written navigation only and no course markings. Entry includes a sandwich voucher and specific entry and transfer rules apply.

A sunset trail event at Ickworth Park offering 5K and 10K routes across limestone paths, woodland and meadows. The 10K is chip timed, all finishers receive a medal and the event operates as cupless with water refill points.

A mixed terrain trail along the Thames at Remenham Farm in Henley on Thames offering a half marathon, 10K and a junior race, with chip timed results, a themed medal and free race photos.

A multi-distance trek and trail event along the South Downs Way from Eastbourne to Arundel with scenic sections including Beachy Head and the Seven Sisters. Distances of 100 km, 50 km and 25 km are supported with rest stops, medical teams,..

Mud Tribe is a muddy obstacle-course event near Brentwood, Essex offering 1.5 km and 5 km options with foam, achievable obstacles, finish-line facilities and a female-only wave; under-15s require a paying adult.

Choose a half marathon or full marathon along a flat, scenic riverside towpath from Walton on Thames to Hampton Court and back, run in laps for easy pacing. Limited places and medals for all finishers plus a giveaway for every entrant.

Women-only obstacle event in Brentwood, Essex featuring a supportive, non-competitive 5 km course for ages 7+. Includes varied obstacles, a finisher medal, hot wash-downs and on-site facilities.

A coastal 7k beach race from Broadstairs to Ramsgate and back on 5 September 2026, organised with local club support. The event features individual and team prizes, on-site refreshments, and a live results feed.

A point to point 50 km ultramarathon between Ramsbury Brewery and Renegade Brewery across woodland trails, canal towpaths and country lanes. The course is mostly off road with four aid stations and a nine hour cut off.