Trail Running calendar near Great Waltham 2025-2026

Kent Downs 50 Challenge is an Ultra Challenge event based at the Kent Showground, Maidstone, in the Garden of England. The main 50 km loop (about 1000 m elevation) loops anticlockwise around the Kent Downs, starting on the North Downs Way to Blue Bell Hill, passing Aylesford, then following the Rive..

Cowdray Autumn Trail Run returns to the Cowdray Estate near Midhurst, West Sussex, on 11 October 2025. The event offers three distances: 5km, 10km and 10 miles, with race HQ at Cowdray Farm Shop & Café (parking there). Most of the routes are on bridleways, footpaths, the Serpent Trail or Sussex Diam..

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 of ascent. The course runs over undulating chalk hills and through local woods. Runners are led by loca..

Endurancelife Suffolk takes place in Dunwich, Suffolk, offering four distances: 6.1 miles (10K), 13.5 miles (half marathon), 26.7 miles (marathon) and 32.7 miles (ultra). The courses are described as extremely flat by Endurancelife standards, making them fast and potentially a series favourite. The..

The Essex AA Cross Country Relays will take place on Saturday 11 October 2025 at Hylands Park, Chelmsford, CM2 8FS. The event is hosted by Billericay Striders and follows the 2024 format for 2025. Race formats include: U13/15/17 Girls - 3 legs of 3 km (1 lap) U13/15/17 Boys - 3 legs of 3 km (1 lap..

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 distance. Route maps for the 21k and 50k are provided. 50k (trail, elevation 1364 m, cut-off 11 hours) 21k (..

The ATW Holdenby House Trail & Canicross event takes place on the historic 2,000-acre Holdenby Estate in Northamptonshire, featuring a scenic 5.4 km traffic-free trail through estate grounds and surrounding farmland. Participants can choose from 5k, 10k, or half marathon distances, with laps corresp..

The Frieth Hilly 5km & 10km is a challenging mixed-terrain running event held in the scenic Chiltern Hills near Frieth, between Marlow and Henley-on-Thames, about 35 miles from central London. The race features winding woodland paths and country roads, offering stunning views throughout the course...

Southend Pier Marathon takes place in Southend-on-Sea on the world’s longest pleasure pier. The event is described as a full marathon run on the sea, with the pier measuring about 1.34 miles and runners completing multiple laps to reach marathon distance on an open pier. The race is limited to 100 p..

Titsey Trail 10k is a single-lap, off-road 10-kilometre race through the Oxted Woodlands, Limpsfield Common and the High Chart area of Surrey and Kent. The largely forest-trail course uses tracks, footpaths and bridleways, with a brief 200m stretch along a country lane; it starts flat, climbs modera..

The Ridgeway Run is a challenging 15-kilometre (9.3 miles) trail race organized by Tring Running Club, featuring scenic routes mainly on footpaths and bridleways with stunning views of the Chilterns. The course starts near Tring, ascends through the Ashridge Estate past the Bridgewater Monument, fol..

Aliens V's Trail Runners Daylight Trail is a trail running event held near Rendlesham Forest, a popular area known for its natural beauty and UFO lore. Scheduled for October 12, 2025, the event offers both a full marathon and a half marathon, with routes that are 95% off-road across diverse terrain...

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 small-town atmosphere that blends urban and countryside sce..

North Chilterns 50K is Runaway Racing’s 50-kilometre trail ultramarathon based at Putteridge Bury Country House (LU2 8LE). The course follows the Chiltern Way toward Lilley, then Warden and Barton Hills, before heading to Pegsdon Hills and Offley, finishing with final 12 km. Runners enjoy undulating..

West Acre Wild 10k Challenge is an off-road 10-kilometre race set in Westacre, Norfolk. The course winds through undulating bridle paths and woodland tracks, with a short paved section at the start and surfaces that can be wet or muddy after rain. Optional obstacles add variety, and the route finish..

The Marlow Donkey is a challenge event on Sunday 12 October 2025, organised by LDWA - Thames Valley and based at Liston Hall, Chapel Street, Marlow, Bucks SL7 1DD. The routes run in the Chiltern Hills with a new figure-of-eight route centred on Lane End. The aim is to complete, on foot, a route of..

The Tarmac Twister Trail takes place on 15 October 2025 and is organised by Essex Trail Events. The route is approximately 6 miles and the minimum age is 16. The event holds TRA permit 7706. It is a self-navigation trail race using a written route description that will be issued on the night. The c..

The Gatliff Marathon is an annual cross-country challenge in Kent, Surrey and Sussex, organized by the COPSE Club (Croydon). Participants may choose 25km or 50km, walking, jogging or running mostly on footpaths and tracks. Each year features a different route; route descriptions and GPX files are pr..

Centurion Autumn 100 is a 100-mile continuous trail race based in Goring-on-Thames and Streatley. The course forms a cross from four 25-mile out-and-back spurs along the Thames Path and Ridgeway, converging at Goring. Legs run Thames Path to Little Wittenham, Ridgeway to Swyncombe Farm, Ridgeway to..

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 approximate due to trail conditions and possible livestock. Ful..