Trail Running Calendar South East (England) 2025-2026

The Big Mud Meon Valley Marathon & 16 Mile is an exciting trail running event taking place at Queen Elizabeth Country Park. Scheduled for February 23, 2025, this event offers participants a choice between two challenging distances: a marathon and a 16-mile race. Known for its stunning views and rugg..

Running Tribe Races offers a unique running experience where participants can choose their distance on the day of the event. Runners can opt for a 10km, Half Marathon, Full Marathon, or Ultra Marathon, all set on a 10km loop course. The event is designed to accommodate various skill levels, allowing..

BigMud Trails (EARTH) is the first event in the Classic Element Trail Series, featuring challenging trail runs in the scenic Meon Valley. Participants can choose between a 16-mile or marathon distance, both starting at Queen Elizabeth Country Park. The course includes a significant climb to Butser H..

The Run Reigate Canicross & Trail event, organized by RunThrough UK, will take place on February 23, 2025, in Redhill, Reigate. Participants can choose between a 5K or 10K multi-terrain loop through the scenic Gatton Park. The event promises a streamlined experience with minimal waiting time, ensuri..

The Winter Trail Run at Gatton Park is back for its fourth year, offering a popular 5K multi-terrain loop. Participants can choose to run either one or two loops, with options for 5K or 10K distances available on the day. The event features a dedicated Canicross segment, a vibrant atmosphere, and am..

The North Downs Ridge 50k is a trail ultra marathon organized by Freedom Racing, taking place on the North Downs Way and the Surrey Wildlife Trust reserve at Norbury Park. The race features a total ascent of 2986 feet, making it accessible for many long-distance runners, including those new to ultra..

The Surrey Hills 10km is a scenic trail run set in the beautiful Surrey Hills, an Area of Natural Beauty. Starting from St Martha's Hill near Guildford, participants will enjoy a guided run that includes stunning views, a climb to the hilltop church, and a descent through picturesque landscapes. Thi..

The Fitstuff G3 Series is a cross-country running event held in the scenic Surrey countryside, featuring 5km, 10km, and 15km trail routes starting from Newlands Corner, Guildford. This series offers participants a challenging experience with varied terrain, including hills, mud, and forest trails. T..

The South Downs Way Ultra Run is a 30-mile trail event that showcases the stunning landscapes of the South Downs Way and its surroundings, including notable sites like Beacon Hill and Kingley Vale. Designed for both seasoned and first-time ultra runners, participants will be guided by an experienced..

Up On The Downs is a trail running event celebrating the beauty of the countryside surrounding Salisbury. Participants can choose from three distances: a 5k designed for beginners, a 10k that measures slightly over 11k, and a half marathon, all primarily on trails and country paths. The event starts..

Midweek Chasing Numbers is a flexible running event designed to accommodate participants of all abilities, including walkers. Set along a scenic stretch of the River Thames, the event allows runners to choose their distance within a 7-hour time challenge, with options ranging from a minimum of 5km t..

The Humanity Direct Amersham Ultra is a one-day endurance event set in the picturesque Chiltern Hills, offering participants the choice of running or walking distances of 10 km, 25 km, or 50 km. This ultra marathon not only challenges athletes but also supports a noble cause, as all entry fees and f..

Endurancelife's Sussex event features a range of trail running options, including a 10K, half marathon, marathon, and ultra marathon, set against the stunning backdrop of the Seven Sisters and the English Channel. The courses traverse the iconic coastal landscapes of Eastbourne and Seaford, offering..

The Maverick Original Hampshire 2025 is a trail running event set in the picturesque South Downs National Park, near Winchester. Participants can choose from three routes: a challenging 24 km long route, a 16 km middle route, and a shorter 5 km option, all designed to showcase the stunning landscape..

The Hardwick X-Stream is a celebrated running event organized by the Bearbrook Running & Triathlon Club, marking its 30th anniversary in 2025. Set in the picturesque Buckinghamshire countryside, the race covers approximately 6 miles of varied terrain, including grassland, ploughed fields, and unique..

The Centurion Hundred Hills 50km is a scenic trail ultra event set in the picturesque Chiltern countryside, starting and finishing at the historic Stonor Park. This race features two 25km loops, with a total elevation gain of 4000ft, making it suitable for both first-time ultra runners and those see..

The Leith Hill Half Marathon is a challenging cross-country race that takes participants from Dorking to the summit of Leith Hill, the highest point in south-eastern England, and back. This scenic 13.1-mile trail run features a total elevation gain of 1,800 feet, making it a memorable experience for..

The St Patrick's Day Run, organized by Phoenix Running West Sussex, is a flexible and inclusive running event taking place at Weir Wood Reservoir in East Sussex. Participants can choose their distance, ranging from 5km to ultra-marathon, and complete as many laps as they wish within a 7-hour time li..

The Sevenoaks Circular Challenge is an annual walking event organized by the Kent Group of the Long Distance Walkers Association (LDWA). Scheduled for March 16, 2025, this challenge features three new routes of 30, 20, and 15 miles, showcasing the scenic beauty of the North Downs and the Greensand R..

Reading 1020 is a scenic multi-terrain running event taking place at the picturesque Mapledurham Estate, located on the outskirts of Reading. This event features 10-mile and 20-mile courses, as well as a half marathon, making it an excellent training opportunity for those preparing for spring races...