South East (England)
Trail Running Calendar South East (England) 2026-2027
Explore the best trail runs in South East (England) for 2026-2027! Our updated list features 418 exciting trail runs across the region. Find your next trail run in South East (England) below and join the trail community at these great events!
March 2027
Now in its 20th year, a North Downs Way event in Surrey offering 26.2 mile and 14 mile routes with support stops, transport to starts and finish facilities at YMCA East Surrey.
A 16-mile multi-terrain trail from Combe Gibbet to Overton across Hampshire and Berkshire countryside, limited to 250 entries with an alternate route if conditions require.
Seven consecutive days of timed running along the River Thames with flexible distances from 3 km up to 50 km, lap-based half, full and ultra options, daily medals and pins, aid stations and goody bags.
A two lap, multi terrain 10 km trail run around Mortimer Fairground and local woodlands with a canicross option, chip timing and race photos.
A 5 mile loop around Hall Barn Estate near Beaconsfield with mixed terrain, trail shoes recommended, free M40 service station parking for entrants and prizes across gender and age categories.
April 2027
Two-day running festival in Brighton and Hove with a marathon, a 10K and the Brighton Miles, expecting up to 20,000 participants in 2027.
A single loop 50 km trail ultra around the South Downs from Arundel with 3,200 ft elevation, four aid stations, full waymarking and 2 ITRA points.
Two ultramarathon options following the Test Way across Hampshire, fully signed with aid stations every 10 miles, a 14 hour cutoff and finisher medals.
Trail races at Stanmer Park with 5 km, 13 km and 21 km options across the South Downs Way, marked course, outposts and a finishers medal.
A 42 km trail to road marathon from Stanmer Park across the South Downs, including Ditchling Beacon and a final 6 km merge into the Brighton Marathon finish on Hove Lawns.
10K and half marathon trail races in Alexandra Gardens, Windsor on 4 April 2027 supporting Brain Research UK, with chip timing, free photos and an event village.
A seven-hour Time Challenge along the River Thames with distances from 3 km to 50 km, themed medals, distance pins and on-course aid.
A timed Friday run on a flat 5.3 km Thames towpath lap with flexible starts; the £10 charity entry supports Rays of Sunshine and all finishers receive a medal.
Seven hour Time Challenge along the River Thames in Staines offering distances from 3km up to 50km, medals, pins, aid stations and goody bags.
Mixed terrain half marathon, 10K and junior race along the Thames at Remenham Farm in Henley on Thames on 10 April 2027.
A 50 mile point to point race along the South Downs Way from Worthing to Eastbourne with seven aid stations, marked route, mandatory qualification and a 13 hour cut off.
Four Centurion Running 50 mile events between April and November 2027 form the 50 Mile Grand Slam with a minimum age of 20.
Races on the Thames Path at Wraysbury Skiff & Punting Club in Runnymede offering Marathon, Half Marathon and 10 km courses with marked turnaround points and stocked checkpoints.
Trail running at Froyle Village Hall on 10 April 2027 with 10 km and half marathon routes, on-course support and funds benefiting the village hall.
Trail races at Cowdray Estate include 3 km kids, 5 km, 10 km and 10 mile options plus dog friendly canicross and a scored 10 km series.