Trail Running Calendar South East (England) 2025-2026

We have found 197 Trailruns in South East (England). Check below where and when you can find the races.

Run the Wild Half Marathon - Chiltern Hills The Run the Wild Half Marathon is a guided trail event based in the Chiltern Hills, starting from The Home Office in Tring. The route covers around 13 miles (about 21 km) with approximately 300 m..

Enjoy scenic autumn trails at Cowdray Estate with 5 km, 10 km and 10 mile routes through ancient woodland, deer park and technical descents. Canicross categories and festival vibes from the Farm Shop Apple Day add extra fun.

Event overview The Kent Downs 50 Challenge takes place on Saturday 11 October 2025 at Kent Showground, Maidstone. The event uses a basecamp near Maidstone with parking, weekend camping options, shuttle transfers to the nearest train station..

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Cowdray 'Run the Seasons' - Spring Trail Run The Cowdray 'Run the Seasons' Spring Trail Run takes place at Cowdray on Saturday 11 April 2026. It is a trail running event held on Heyshott and Ambersham Common and is one of the seasonal Cowdr..

RunThrough Trails Beat Box Hill October 2025 The event takes place on Saturday 11 October 2025 at Box Hill Trail, Tadworth KT20 7LB (Event location: The Old Fort, Box Hill Road). The races are trail format with mapped courses for each dista..

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Event The Titsey Trail 10k is an annual off-road race organised by Oxted Runners. The next edition is scheduled for Sunday 12 October 2025. The race distance is 10k. Entries are managed by Nice Work Race Management. The event is held under..

Event overview The South Downs Way Ultra Run is a guided 30-mile trail run that starts and finishes at Harting Down in West Sussex. The route follows sections of the South Downs Way and nearby trails, passing Beacon Hill, Cocking Down and K..

Event The Frieth Hilly 5km and 10km is scheduled for 12 October 2025 at Frieth Primary School, Frieth Hill, Henley-on-Thames RG9 6PR. The courses run in the Chiltern Hills between Marlow and Henley-on-Thames, about 35 miles from central Lon..

Buckingham 10k is a charity running event in Buckingham Town Centre. The 10km multi-terrain route, organized by Run for the Sky, starts in the town centre and winds through Stowe Avenue, Stowe National Trust Gardens and farmland, offering a..

Event details The Marlow Donkey is a walking and running challenge held on 12 October 2025 in Marlow, Bucks. The event base is Liston Hall (Marlow Community Association), Chapel Street, Marlow, SL7 1DD. It is organised by LDWA - Thames Vall..

Gatliff Marathon : 18 October 2025 The Gatliff Marathon is an annual challenge walk, jog or run. The 2025 event is the 41st edition and takes place at Edenbridge Cricket Club, Matthew Cox Community Pavilion, Blossoms Park, Mill Hill, Edenbr..

Autumn 100 : event overview The Autumn 100 is a 100 mile (approximately 161 km) continuous trail race held on 18 October 2025 from Goring & Streatley on the River Thames, Oxfordshire. The route is four out-and-back spurs of about 25 mil..

Take on the Bedgebury Forest Half Marathon or 10K on 19 October 2025, winding through scenic, traffic free trails in the national pinetum. Expect mud after rain, a bespoke medal and free photos, with limited on the day entries if available.

Herstmonceux 8km Trail Race is a picturesque off-road loop around Herstmonceux, centred on Herstmonceux Village Hall (BN27 4JX). The 8km course winds through fields, bridleways and woodland with views toward the South Downs; distance is app..

Running Tribe Races in Buckinghamshire, England, offers endurance events at two venues: Courses 1–3 at Chalfont Park Sports Club in Chalfont St Peter and Courses 4–6 at Chalfont St Peter Community Centre. Runners can choose, on the day, fro..

Run 47 miles along the Thames Path and Ridgeway from Iffley to Henley on 25 October 2025, a scenic but testing point to point ultra with muddy trails and riverside views. Finishers get a medal and top placings win prizes.

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The Beachy Head Marathon is one of the largest off-road marathons in the UK, renowned for its stunning and challenging course through the South Downs National Park. Formerly known as the Seven Sisters Marathon, it attracts runners, joggers,..

Trail Run Canterbury is a Canterbury-based trail and multi-terrain running event anchored at St Edmund’s School on St Thomas Hill. It offers three distances: 5.5, 10 and 20 miles. The route winds along trails around the edge of Canterbury,..

Thames Path Trail Run : Windsor Racecourse, 26 October 2025 The Thames Path Trail Run takes place at Windsor Racecourse on 26 October 2025. The route follows sections of the Thames and nearby countryside. Distances offered: 21km 16km No do..

Run a spooky 5 mile night trail through Friston Forest, finishing back at The Plough and Harrow for Halloween fun. Fancy dress is required for prizes and you get a themed finisher medal while the course is supported by a friendly sweep.