Trail Running Calendar South East (England) 2025-2026

The Magna Carta Spring event, organized by Hermes Running, will take place on April 26, 2025, at the scenic Wraysbury Skiff & Punting Club in Egham, Surrey. This running event features a marathon, half marathon, and 10K race, all set along the picturesque River Thames, near the historic site where t..

The Chiltern Hills 100K is an ultra marathon set to take place on April 26, 2025, featuring a scenic route through the picturesque Chiltern Hills. Starting and finishing in Chesham, the race covers an anticlockwise loop that includes notable landmarks such as Ashridge Estate and Coombe Hill, while i..

The Brighton to London 100k Ultramarathon is a challenging trail race covering 101 km, connecting the cities of Brighton and London. Scheduled for April 26, 2025, the route features a mix of major trails, including the South Downs Way and Sussex Border Path, along with quieter country lanes. Partici..

The Rathfinny Run is a scenic running event held at the Rathfinny Wine Estate, featuring a 10.7km and a half marathon distance. Participants will navigate through beautiful vineyard trails with stunning views of the South Downs National Park. Scheduled for April 27, 2025, this UK Athletics licensed..

The Drop - Winchester is an exhilarating and challenging race in the UK, designed to test participants' resilience and resourcefulness. Competitors can choose between a 15-mile or 10-mile journey, either solo or in teams. The race begins with participants being transported to a secret drop-off locat..

The Icklesham 8km Trail Race is a scenic off-road running event scheduled for April 27, 2025, at Icklesham Memorial Hall. The course, primarily trail-based with over 75% on natural paths, offers picturesque views and passes notable local landmarks. Participants must be at least 16 years old, with a..

The Surrey Hills Half Marathon is a scenic trail running event that takes participants through the stunning landscapes of the Surrey Hills, starting and finishing in Guildford. This 13-mile guided run is designed for both novice and experienced trail runners, offering a unique experience with changi..

The Angmering Bluebell Trail Run, held annually on the last Sunday of April, takes place on the stunning grounds of Angmering Park Estate in West Sussex. Celebrating its 21st year, the event features 10-mile and 10km trail races through scenic woodland and private tracks at the height of bluebell se..

Saturn Running's Midweek Chasing Numbers event in Egham offers a flexible and inclusive running experience for participants of all abilities. Set along a scenic stretch of the River Thames, runners can choose their distance within a 7-hour time challenge, with options ranging from a minimum of 5km t..

The Mid Sussex Marathon Weekend is a vibrant three-day running event taking place from May 3 to May 5, 2025, across East Grinstead, Haywards Heath, and Burgess Hill. Celebrating its 14th year, this popular event features a variety of races, including a 10-mile race, a 10k, and a family-friendly Fun..

The Mapledurham Backyard Ultra is a thrilling last-man-standing running event scheduled for May 3, 2025, at Mapledurham House in Reading. This endurance challenge features a 4.167-mile loop through Chazey Woods, where participants must complete laps on the hour, every hour, until only one runner rem..

The Three Forts Challenge is a renowned running event held annually in Worthing, featuring three race options: a full marathon, a half marathon, and a 5-mile trail run. The marathon, slightly longer than the traditional distance, takes participants through challenging terrain with steep climbs and s..

The Harewood Forest Trail Race is an annual running event held in the picturesque Harewood Forest, located in the Test Valley, Hampshire. Participants can choose between 5k and 10k trail races, which feature undulating routes through scenic landscapes, including fields and bluebell woods. The event..

BigWayRound - Winchester is an award-winning trail running event set to take place in 2025. Participants can choose from four distances: 14 miles, 19 miles, a marathon, and a 50K ultramarathon, all featuring stunning views of the English countryside. The course includes well-marked paths along the I..

The Silent Pool 10km is a guided trail running event held near Guildford, starting and ending at the historic Silent Pool. The route features scenic trails along the North Downs Way, through forests like Netley Heath, and passes the picturesque village of Shere, known for film locations from 'The Ho..

Bewl Water Spring is a scenic running event organized by Hermes Running, held at Bewl Water in Kent. The race features multiple distances, including 10K, half marathon, marathon, and ultra marathon, set around the picturesque reservoir. The courses combine undulating rural trails and quiet country l..

The Brighton Backyard Ultra is an endurance running event held in Stanmer Park, Brighton, East Sussex. Participants must complete a 4-mile lap every hour until only one runner remains. This unique format encourages runners to push their limits, with no minimum distance required, making it accessible..

The Run to the Sea Brighton Ultramarathon is a scenic 50km point-to-point race from Horsham to Brighton seafront, featuring diverse terrain including trails, rolling downs, and coastal promenade. Organized by UltraViolet Ltd, the event offers a well-structured course with full signage, GPS routes, a..

The Midhurst Milers Cocking 10k Trail Race will take place in Cocking on Sunday 11 May 2025. You can run 10 kilometers.

The LDWA South Downs Marathon is a challenging event set in the picturesque South Downs National Park, featuring two distances: 28 miles and 18 miles. Participants will experience over 4000 feet of ascent on the longer route, traversing stunning landscapes including the Seven Sisters and Cuckmere Ha..