Seaford
Trail Running Calendar near Seaford 2026-2027
Explore the top trail runs near Seaford for 2026-2027! We've gathered 66 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
March 2027
Coastal trail event in Eastbourne on 6 March 2027 offering 10K, half, marathon and ultra routes across chalk cliffs and rolling downland.
April 2027
A two day running festival in Brighton and Hove featuring a marathon, a 10K and mile events with up to 20,000 participants expected.
A single-loop 50 km trail race around Arundel and the South Downs with four aid stations, about 3,200 ft of ascent, UTMB Index status and live GPS tracking.
Three trail routes at Stanmer Park on 3 April 2027 across the South Downs Way, with varied terrain, marked aid outposts and timed results.
A 42 km trail to road marathon from Stanmer Park across the South Downs, including Ditchling Beacon, then joining the Brighton Marathon for the final 6 km into Hove Lawns.
Four Centurion Running 50 mile events from 10 April to 13 November 2027 as a Grand Slam entry; entry fee £480, minimum age 20, XCover refund option available.
Timed laps at Tilgate Park on 24 April 2027 offering distances from 5 km to ultra with medal and no medal entry options.
May 2027
A single entry covering four Centurion 100 mile races from 1 May to 17 October 2027, minimum age 20 and entry fee £908.
Three towns host races across a Bank Holiday weekend in 2027, with combined results forming the Mid Sussex Marathon. Distances include 10 mile, 10k, a chip timed mile and a family fun run, plus virtual and combo marathon options.
Three Forts Challenge is a Sussex trail running event across the South Downs from Lancing Manor Leisure Centre. It offers a full marathon, half marathon and a 5 mile run, and directs event profits to Ferring Country Centre and local charities.
A point-to-point 50 km ultramarathon from Horsham to Brighton seafront on 8 May 2027, with mixed trails, four feed stations, full course signing and individual or two-person relay entry options.
Trail races through Rathfinny Wine Estate with single 10.7 km and double 21.4 km loops, marked off-road terrain and chip timing. The carbon neutral event supports the WOLO Foundation and provides aid stations, recycled medals and parking arrangements..
A multi distance trail event around Bewl Water reservoir near Lamberhurst, Kent. Races include 50km, marathon, half marathon and 10km on wooded trails and country lanes with start and finish at the Visitor Centre.
Trail running at Wiston Estate on a marked 10K loop, offering 10K, half marathon, marathon and 100K with aid stations and an event village.
A 7 km cross-country fun run at Trenchmore Farm on 22 May 2027 with music, burgers and a free drink for each runner.
A point to point 50 km trail race along the South Downs Way from Falmer to Eastbourne with four aid stations, GPS tracking and an 11 hour cutoff that allows walkers.
A 13.5 mile single loop trail through the South Downs National Park from Helen Garden, Eastbourne, with about 2,000 ft of ascent and mostly trail terrain.
June 2027
Park-based 3k and 5k runs at Dunorlan Park with mixed grass and woodland terrain. The event is organised by Cancer Research UK and includes a fundraising pack and a finishers medal.
A trail half marathon from Chiddingly, Sussex along the Wealdway and Vanguard Way with two checkpoints, chip timing, a five hour limit and a choice to donate instead of a medal.