Logo

50 Mile Grand Slam

Worthing, United Kingdom • 11 Apr 2026

50 Mile Grand Slam 2026 is a four-race endurance challenge from Centurion Running. It combines four 50-mile events held as the All Four 2026 50 Mile Events: South Downs Way 50, North Downs Way 50, Chiltern Wonderland 50, and Wendover Woods 50. Runners complete all four for the Grand Slam, spanning spring to late autumn 2026.

Entry fees are £468, with UKA discounted £460. The package includes the four races, plus optional XCover refund protection. Organised by Centurion Running, this in-person challenge totals 200 miles across varied UK terrains.

The event is offline and in-person, emphasizing endurance through varied landscapes. 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

Silent Pool 10km

Albury - 28 mi from Worthing

Silent Pool 10km is a guided trail run that starts and finishes at Silent Pool, Albury, near Guildford. The route follows North Downs Way sections and the Netley Heath forest, dipping into Shere and passing film locations from The Holiday and Bridget Jones Diary. It’s ideal for those new to trail ru..

Fortitude Ultra - Denbies

Dorking - 28 mi from Worthing

The Fortitude Ultra - Denbies is an endurance running event held at the picturesque Denbies Wine Estate in Dorking, Surrey. Participants face the challenge of completing 10 laps of varying distances (approximately 3, 4, or 5 miles) within a 10-hour timeframe. Runners can adjust their chosen distance..

The Dark Downs 50k

Lewes - 17 mi from Worthing

The Dark Downs 50k is an exciting night running event held on the scenic South Downs, featuring both a 50k race and a Half Marathon. Participants will experience the unique atmosphere of running at dusk and into the night, with the rolling hills and runnable trails providing an ideal setting. The ev..

UTMB Index

North Downs Way Ultra Run

Albury - 28 mi from Worthing

The North Downs Way Ultra Run is a guided trail run meeting at St Martha's Hill, Guildford, Surrey. The event covers 30 miles and is offered on scheduled dates in 2025 and 2026 (28 September 2025; 10 January 2026; 10 October 2026). The entry cost is £45 per person. A full kit list will be provided..

Run to the Sea Bournemouth Ultramarathon

Horsham - 16 mi from Worthing

The Run to the Sea Bournemouth 50 km ultramarathon is scheduled for Saturday 4 October 2025 and is organised by UltraViolet Ltd. Entries for this event are closed. The race is a point-to-point 50 km distance that starts at Moors Valley Country Park (Ashley Heath, Dorset) and finishes at Hengistbury..

East Grinstead 10K

East Grinstead - 26 mi from Worthing

The East Grinstead 10k is scheduled for Sunday, 5 October 2025. The event is organised by volunteers from East Grinstead Runners and supporting local clubs and charities. Field size is expected to be around 300-400 competitors. Profits are donated to East Grinstead Lions and their prostate cancer s..