Trail Running calendar near Brentwood 2025-2026

The HAVOC Twilight Series 2025 No.1 in South Ockendon is a midweek street orienteering event featuring a traditional score format. Participants navigate a single course through streets, local parks, and woods, aiming to visit as many controls as possible within two time limits: Long (60 minutes) or..

The c2c Essex Ultra is a one-day ultramarathon event held along the Essex Riviera, offering participants the choice of 30 or 50 miles. The 50-mile route starts at Upminster Station, while the 30-mile route begins at Lansdowne Primary School in Tilbury, with both finishing at Thorpe Bay Station. The..

The Thames Path Ultra Challenge is a premier endurance event in England, following the scenic Thames Tow Path from Putney Bridge to Henley-on-Thames. Participants can walk, jog, or run distances ranging from 10 km to a full 100 km ultra, with options for 75 km, 50 km, and 25 km as well. The route pa..

Thetford Back Yard Ultra is a competitive endurance running event held at High Lodge in Thetford Forest, Suffolk. Participants run a 4.167-mile loop every hour on the hour, continuing until only one runner completes a loop within the one-hour time limit. The course is a wide, flat, and well-signed r..

Bewl Water Autumn is a scenic bi-annual running event held near the Bewl Water Visitor Centre in Lamberhurst, Kent. The race features four distances: 10km, half marathon, marathon, and a 50km ultra, all following routes around the reservoir. The courses combine undulating rural wooded trails and qui..

Brighton 50/50 September 2025 is a trail running event held in Brighton, UK, featuring distances of 50 miles, 50 kilometers, and 23 kilometers. The 50-mile race starts at Brighton Beach, traversing the scenic South Downs to Beachy Head and returning along the coastline, offering rolling hills, iconi..

The Roman River Trails event offers participants the choice of a half marathon or marathon, featuring self-navigation routes through the picturesque Roman River valley near Colchester. The predominantly hard-packed trail includes sections of tarmac and grass, with several river crossings and some hi..

The Thaxted Trail Marathon and Half Marathon, organized by Essex Trail Events, takes place in Thaxted, Essex. This self-navigation trail race offers marathon and half-marathon distances, with participants using a written route description provided on race day—there are no course markings or marshals..

The The Sudbury Trail Run will take place in Sudbury on Sunday 14 September 2025.

The Sandridge 10k is a scenic trail running event set in the picturesque village of Sandridge, near St Albans. Participants can enjoy a beautiful 10k course that showcases the natural beauty of the area. The event is organized by Active Training World, and it promises a rewarding experience for both..

The Rye Ancient Trails 30K & 15K is a scenic steeplechase running event held in Rye, East Sussex, within the High Weald Area of Outstanding Natural Beauty. The race features challenging multi-terrain, hilly courses of 30 kilometers and 15 kilometers, winding through ancient trails, historic woodland..

The Run London Epping Forest Trail 10k is a popular running event scheduled for September 14, 2025, in the scenic Epping Forest, Chingford. Participants will complete a 10k course consisting of two laps through the forest, known for its rich biodiversity and beautiful landscapes. The race is designe..

The Alf Shrubb Memorial 10k and 5k are mixed trail races held in Slinfold, West Sussex, celebrating the legacy of local running legend Alf Shrubb. The event features chip-timed adult races on scenic routes through Sussex countryside, with the 10k consisting of two laps on local footpaths and bridlew..

The Dunstable Downs Challenge Half Marathon is a scenic trail running event organized by Dunstable Road Runners, held at Creasey Park Football Centre in Dunstable. The 13.1-mile course takes runners across the picturesque Dunstable Downs and surrounding rural areas, primarily on public footpaths and..

The Ashtead 10k and 2k fun run, organized annually by Ashtead Running Group, takes place at The Scout Hut, Woodfield, Ashtead. The event features a 10k race and a 2k kids' run on rough, undulating tracks around Ashtead Common, a protected Site of Special Scientific Interest and National Nature Reser..

The Lucky Horseshoe is a versatile running event held at the Suffolk Running Centre in Bury St Edmunds, offering distances of 5k, 10k, half marathon, full marathon, and ultra marathon. The course features an out-and-back route, promoting a social atmosphere, with the marathon covering a full loop al..

The Yard Trail Races, hosted at Chilton Manor Farm in Hampshire, offers participants two scenic routes: a 10k and a 10-mile trail run. Both routes begin and end on a historic avenue lined with 800-year-old Yew trees, providing stunning views. Runners are welcomed at the finish line by friendly marsh..

The Centurion Chiltern Wonderland 50 is a challenging 50-mile ultramarathon set in the scenic Chiltern Hills of South East England. The single-loop course features 5,600 feet of elevation gain and loss, traversing picturesque villages and historic sites known from British film and television. Starti..

Hambledon Hilly is an annual running event held at the scenic Hambledon Vineyard in Hampshire, England, the country's oldest commercial vineyard. Celebrating its 10th edition in 2025, the event features multiple race distances: 1km and 2km for children under 12, 5km for ages 12 and up, 10km for 15 a..

The Triple Trail Races, held at Loddington Farm in Kent, offer three challenging distances—25km, 50km, and 100km—through some of the region's most scenic and historic trails, including the North Downs Way, Greensand Way, and Weald Way. The 100km race is Kent’s only single-loop ultra marathon, showca..