Trail Running calendar near East Sussex 2025-2026

Winter's End - 50 Mile Ultra & Marathon is a scenic trail running event held along the South Downs Way National Trail, starting near Arundel, West Sussex, and finishing in Winchester, Hampshire. The event features a 50-mile ultramarathon and two marathon options covering either the first or second h..

The Windsor Trail Run March 2026, hosted by RunThrough UK, takes place on March 22, 2026, at Alexandra Gardens in Windsor, UK. This event offers two race distances: a 10K and a Half Marathon, both featuring flat, trail terrain with scenic views of Windsor Castle. The 10K has an elevation of 29 meter..

The Run the Wild Half Marathon - Spring Edition is a 13-mile (21.1 km) trail running event set in the scenic Chiltern Hills, just 40 minutes northwest of London near Tring. Featuring rolling chalk hills and woodland paths with around 300m of ascent, the course offers a welcoming atmosphere for all a..

The Springtide 50k is an ultra running event held in the historic town of Arundel, West Sussex. This single-loop course offers a runnable, non-technical route through the scenic South Downs, making it ideal for beginners and experienced runners alike. Participants enjoy stunning views of rolling hil..

The Mortimer 10km is a scenic trail running event held in the charming Berkshire village of Mortimer, starting and finishing at Mortimer Fairground. The race features a beautiful two-lap, multi-terrain course that covers woodland trails, footpaths, and bridleways with an elevation gain of 85 meters...

The 50 Mile Grand Slam 2026, organized by Centurion Running, is a series of four challenging 50-mile ultramarathons held across iconic UK trails. The event includes the South Downs Way 50, North Downs Way 50, Chiltern Wonderland 50, and Wendover Woods 50, taking place between April and November 2026..

The Henley River Half Marathon, 10k & Junior Race takes place in April 2026 at Temple Island Meadows, Henley-on-Thames, UK. This scenic event features a mixed-terrain, undulating course along the Thames, starting and finishing at the iconic Royal Henley Rowing Regatta launch point. The half marathon..

The Centurion South Downs Way 50® is a challenging 50-mile ultramarathon held annually in Southern England, starting in Worthing and finishing with a lap at Eastbourne Sports Club Athletics Track. The course follows the South Downs Way National Trail, featuring 5,700 feet of elevation gain over 85%..

The Windsor 50 Ultra Challenge, formerly known as the Easter 50, is a premier UK trail running and trekking event held at Windsor Racecourse. Scheduled for April 18, 2026, it offers three looped distance options: a 50 km ultra, a historic 25 km, and a 10 km challenge. Participants traverse scenic ro..

The Spring Trail Series by Ultra X is a trail running event held at the Cowdray Estate in Surrey, within the scenic South Downs National Park. The series features five race distances: 12km, 25km, 50km, 50 miles, and 110km, all starting and finishing at the same accessible location near Cowdray Farm..

The Chiltern Ridge Classic 50K is an iconic ultra marathon held in the Chiltern Hills, UK, featuring a challenging 51 km trail run with 996 meters of elevation gain. The race starts at historic Berkhamsted Castle and finishes at Hampden Meadow in Wendover, traversing stunning ridgeline trails betwee..

The Thames Ring 250 is a challenging 250-mile (approximately 256 miles) trail ultramarathon starting and finishing in Streatley-on-Thames, UK. The race follows an anti-clockwise loop along the Thames, the Grand Union Canal, and the Oxford Canal, primarily on flat canal and riverside paths. Despite t..

The Ale Trail is a 15-mile fun run held in Alfriston, East Sussex, starting from the beer garden of Ye Olde Smugglers Inne. The event features a scenic course with two checkpoint pubs—the Hampden Arms and The Ram Inn—where runners can enjoy a beer and snacks before continuing. Participants are encou..

The Drop - Winchester is a unique and challenging race held in Winchester, UK, offering participants a choice between 10-mile and 15-mile distances, either solo or in teams. Inspired by military-style navigation, the event requires runners to find their way back to the event center from an undisclos..

The Centurion Thames Path 100 is a 100-mile marked point-to-point trail race from Richmond in London to Oxford University grounds. The course follows the Thames Path, offering a mostly flat and fast route with 75% trail and 25% paved paths, showcasing stunning English riverside scenery. Runners face..

The Isle of Wight Ultra Challenge is a premier endurance event held on the stunning Isle of Wight, featuring a variety of distances including 106km, 53km, 25km, and a 10-mile option. Participants walk, jog, or run along the island’s spectacular coastal paths, passing iconic landmarks like the Needle..

Rapid Relays is a dynamic running event held at the scenic Culden Faw Estate in Fawley, near Henley on Thames, Oxfordshire. The race features a woodland trail course on estate tracks with gently undulating terrain, including a notable climb before 3 kilometers followed by a long downhill stretch bac..

The Three Forts Challenge is a renowned trail running event held in West Sussex, starting and finishing at Lancing Manor Leisure Centre. It offers three race options: a full marathon (27.2 miles), a half marathon, and a 5-mile trail run. The courses feature demanding terrain with steep climbs, stile..

BigWayRound - Winchester is an award-winning, Gold-rated trail running event held at Winchester Rugby Club. The event offers four distances: 14 miles, 19 miles, a marathon, and a 50K ultramarathon, catering to both new and experienced trail runners. The course features stunning views and traverses i..

The Run to the Sea Brighton Ultramarathon is a scenic 50km point-to-point race from Horsham to Brighton seafront, featuring a mix of trails and rolling downs. Known for its stunning views and well-organized setup, it caters to both beginners and experienced ultramarathoners. The course is fully sign..