Trail Running calendar near Seaford 2025-2026

We have found 274 Trailruns within 80 miles of Seaford. See below where and when you can find the races.

Run the North Downs Ridge 50k, a scenic trail ultra from Denbies Wine Estate near Dorking. Enjoy rolling Surrey countryside, four aid stations, medical cover and a UTMB qualifier for runners after a classic long day on trails.

Join a guided 10 km trail run through Thursley National Nature Reserve, across open heath, pine wood and the boardwalk voted Britain's Favourite Path. Enjoy a friendly group pace with dusk and headtorch evenings, kit trials and a possible p..

Join the G3 Series at Newlands Corner, Guildford on Saturday 28 February 2026 for scenic 10 km and 15 km runs through Surrey countryside. Single entries and series bundles are available; register by 26 February.

Tackle a guided 30 mile trail on the South Downs Way from Harting Down, West Sussex, passing Beacon Hill and the ancient yews of Kingley Vale. This friendly group run from Running Adventures offers a scenic, supportive challenge for experie..

Explore scenic coastal paths around Chichester Harbour with views of Bosham Hoe, Itchenor and the South Downs and a short foreshore crossing at low tide. Choose 16 km or 21 km routes with canicross options and a friendly race day vibe.

March 2026

Run a scenic 10 km along the Thames and Jubilee River through Windsor, Dorney and Eton, finishing by the Windsor & Eton Brewery. Multi terrain course with a medal and post race pint makes this a perfect social and club outing.

Join a guided 10 km trail from Silent Pool, Albury along the North Downs Way through Netley Heath to Shere, with sunset or headtorch night options. Led by a qualified guide, the run features kit trials and sometimes an alcohol free beer.

Join the Humanity Direct Amersham Ultra on 7 March for scenic footpath and bridleway routes of 10 km, 25 km or 50 km starting at Dr Challoner's School. Run or walk to fundraise for Humanity Direct and earn a finisher medal.

Take on the stunning Sussex coastal trails at Eastbourne on 7 March 2026 with 10K, half marathon, marathon and ultra options that pass the Seven Sisters cliffs. Expect challenging chalk and forest terrain, great views and full event support..

UTMB Index

Brutal at Chawton is a raw trail run across muddy woodland, water filled craters and steep sided valleys with tight technical trails. Options for 5 km or 10 km include dedicated canicross waves so bring your dog and expect big challenges.

Tackle the Leith Hill Half Marathon, a scenic 13.1 miles cross country run from Dorking to Leith Hill Tower and back with about 1,800 feet of climbing. Enjoy stunning views, a commemorative medal and a full cooked breakfast at the finish.

Take on the Wight Riot, a mixed terrain coastal path run at Hordle Cliff West with stunning views of the Isle of Wight and passages past Sturt Pond. Choose a 5K or multiple lap ultra and earn a finisher medal for every completed lap.

Join the Thames Meander, a riverside race from Barnes along the Thames Path with flat, fast and scenic out and back routes. Choose 10k, half or full marathon routes with waymarked course, stocked checkpoints and medical support.

Tackle the Steyning Stinger on 8 March 2026 with marathon, 30K or half marathon routes, all UTMB Index. Enjoy rolling Sussex scenery, marshalled aid stations, free race photos and sustainable medals plus a technical finishers shirt.

UTMB Index

Discover the Hundred Hills 50 km, a challenging trail ultramarathon through the scenic Chilterns at Stonor Park on 14 March 2026. Two 25 km loops with about 4000 ft of climb and a nine hour cut off promise tough trails and big views.

UTMB Index

Explore the South Downs at the Maverick Hampshire Trail, a scenic Matterley Basin race with rolling hills and technical descents. Choose 24 km, 16 km or 5 km and enjoy timed results, a finisher medal and dog friendly entries.

Take on the scenic Sevenoaks Circular Challenge on 15 March 2026 with new 15, 20 and 30 mile routes across the North Downs and Greensand Ridge. Checkpoints are indoors and refreshments plus hot food at the finish are included.

The Gratitude 25km is an exciting running event taking place in Broxbourne, UK. This race is designed for runners of all levels, promoting fitness and community spirit. Participants will enjoy a scenic route while challenging themselves to..

Take on the South Downs Way with Winter's End, a scenic trail event offering a 50 mile ultramarathon and two marathon options between Arundel and Winchester. Expect chalk ridge views, well stocked aid stations and a true point to point adve..

Join a guided 13 mile trail run around Guildford's Surrey Hills, visiting St Martha's Hill, Shere and the North Downs Way. Enjoy a friendly group pace, kit support and optional post run refreshments.