Trail Running Calendar South East (England) 2025-2026

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, Sussex Border Path, and London Loop, along with quieter country..

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 running event set to take place in Icklesham, featuring over 75% trail terrain. Participants can enjoy stunning views and well-known local landmarks along the route. The race is fully marked and marshalled, with amenities including toilets, changing facilitie..

The Rathfinny Run is an environmentally conscious running event held at the picturesque Rathfinny Wine Estate in East Sussex. Participants can choose between a 10.7km single loop or a challenging half marathon (21.4km) that consists of two loops through the estate's scenic vineyards and hilly trails..

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, scheduled for April 27, 2025, celebrates its 21st year at the scenic Angmering Park Estate in West Sussex. Participants can choose between a 10-mile and a 10km trail run, both set against the stunning backdrop of blooming bluebells. The courses feature private track..

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 scenic Harewood Forest, located in the Test Valley, Hampshire. Participants can choose between 5k and 10k trail races, which feature undulating routes through beautiful landscapes, including fields and bluebell woods. The event pr..

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 set in the picturesque surroundings of Silent Pool, near Guildford. This evening run is designed for both novice and experienced runners, offering a unique experience of running at dusk or night. Participants will traverse scenic trails, including..

The Bewl Water Spring event is a scenic running series held at Bewl Water Country Park in Kent, featuring ultra marathon, marathon, half marathon, and 10km distances. The courses meander around the picturesque reservoir, combining undulating wooded trails and quiet country lanes, offering stunning v..

Run to the Sea Brighton is a scenic 50km ultramarathon that offers a unique multi-terrain experience from Horsham to the Brighton seafront. This well-organized event caters to both novice and experienced runners, providing a friendly atmosphere and stunning views throughout the course. Participants..

The Midhurst Milers Cocking 10k Trail Race is an exciting running event set against the stunning backdrop of the South Downs. Scheduled for May 11, 2025, this challenging trail run features a scenic route that includes hilly climbs and breathtaking views, starting from the Cadence Cycle Club Café in..

The Woodland Woggle 10k is a scenic trail race set in the picturesque surroundings of Hampton Estate and Puttenham Common. This one-lap course features undulating hills, stunning views, and beautiful bluebell woods, making it a favorite among trail runners. Participants aged 16 and over can enjoy ch..

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..

The Hankley Common 10km is a guided trail run set in the scenic Hankley Common, known for its rich wildlife and historical significance. This event is designed for both novice and experienced runners, offering a safe and enjoyable experience, especially for those new to trail running. Participants c..

The Hankley Common 10km is a guided trail running event set in the picturesque Hankley Common, known for its rich wildlife and historical significance, including the Atlantic Wall replica used during WWII. This event is designed for runners of all levels, particularly those new to trail running or t..