Three Forts Challenge
Worthing, United Kingdom • 3 May 2026
Three Forts Challenge
The Three Forts Challenge is a trail running event held on 3 May 2026 at Lancing Manor Leisure Centre in Lancing, West Sussex. The routes run across the South Downs and showcase open countryside, rolling hills and coastal views. The event has been staged since 1977 and is presented as a local Sussex tradition.
Distances offered include:
- Full marathon
- Half marathon
- 3FC 5 mile trail run
The marathon and half marathon entries are open to competitors aged 18 and over. The 5 mile trail run is open to entrants aged 16 and over and is listed with a photo and medal included. Entry prices shown are £49 for the marathon, £39 for the half marathon and £20 for the 5 mile run.
Course features reported by participants include narrow chalk and flint paths, frequent aid stations and marshal support along the route. Event facilities at the leisure centre have included bag drop, post‑race refreshments and on‑site showers and a cafe. Parking at Lancing Manor Leisure Centre is limited; buses stop on the A27 and Lancing train station is the nearest rail link with an approximate 25 minute walk to the venue.
The event donates profits to Ferring Country Centre and to local Sussex charities, and the organisers permit dogs on the route. Visit the organization's website for the most recent information.