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Centurion Hundred Hills 50km

Stonor, United Kingdom • 14 Mar 2026

The Hundred Hills 50km is a scenic trail ultramarathon held in the Chiltern countryside, starting and finishing at the historic 850-year-old Stonor Park near Henley-On-Thames, England. The race features two distinct 25km loops, covering 50 kilometers with approximately 4,000 feet of elevation gain. With a 9-hour cut-off, it suits both first-time ultra runners and those aiming for a fast early-season race. The course traverses picturesque villages, ancient woodlands, and varied trails, with 80% trail and 20% road terrain. The event offers five well-stocked aid stations, full medical support, and a vibrant atmosphere for runners and spectators, including food and drink vendors at the start/finish area. Visit the organization's website for the most recent information.

United Kingdom South East (England) Stonor

Race information

Website Registration
50 km
1219 m+
Visit the organization's website for the most recent information.
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