Logo

50 Mile Grand Slam

Worthing, United Kingdom • 11 Apr 2026

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. Participants experience diverse scenic routes through the South Downs, North Downs, Chiltern Hills, and Wendover Woods, offering a mix of terrain and natural beauty. The Grand Slam celebrates endurance and trail running in a supportive atmosphere, attracting seasoned ultrarunners aiming to complete all four events within the year. Visit the organization's website for the most recent information.

United Kingdom South East (England) Worthing

Race information

Website Registration
50 mi
Chiltern Wonderland 50
50 mi
North Downs Way 50
50 mi
South Downs Way 50
50 mi
Wendover Woods 50
Visit the organization's website for the most recent information.
Trail runs nearby

Three Forts Challenge

Worthing

The Three Forts Challenge is a trail running event held in West Sussex, starting and finishing at Lancing Manor Leisure Centre. It offers three race options: a full marathon of approximately 27.2 miles featuring tough terrain with steep climbs and rough tracks, passing landmarks like Chanctonbury an..

Silent Pool 10km

Albury - 28 mi from Worthing

The Silent Pool 10km is a guided trail running event held near Guildford, starting and ending at the historic Silent Pool. The route features scenic trails along the North Downs Way, through forests like Netley Heath, and passes the picturesque village of Shere, known for film locations from 'The Ho..

Brighton Backyard Ultra

Brighton - 10 mi from Worthing

The Brighton Backyard Ultra is an endurance running event held in Stanmer Park, Brighton, UK. Participants run a 4-mile (6.7 km) out-and-back loop every hour on the hour, continuing until only one runner remains. Each lap must be completed within 60 minutes, with the remaining time used for rest.The..

Run to the Sea Brighton Ultramarathon

Horsham - 16 mi from Worthing

The Run to the Sea Brighton Ultramarathon is a scenic 50km point-to-point race from Horsham to Brighton seafront, featuring diverse terrain including trails, rolling downs, and coastal promenade. Organized by UltraViolet Ltd, the event offers a well-structured course with full signage, GPS routes, a..

UTMB Index

Midhurst Milers Cocking 10k Trail Race

Cocking - 18 mi from Worthing

The Midhurst Milers Cocking 10k Trail Race is a scenic and challenging trail run held in the South Downs, starting near Cocking, Midhurst, West Sussex. The 10k course features hilly terrain with climbs across the Cowdray Estate and West Dean Estate, rewarding runners with stunning views from the Sou..

LDWA South Downs Marathon

East Dean - 25 mi from Worthing

The LDWA South Downs Marathon is a challenging 28-mile event held in the South Downs National Park, starting at East Dean Village Hall near Eastbourne. Participants face over 4,000 feet of ascent, traversing stunning landscapes including the Seven Sisters cliffs, Cuckmere Haven, Firle Beacon, and pi..