Centurion Hundred Hills 50km
Stonor, United Kingdom • 14 Mar 2026
The Centurion Hundred Hills 50km is a scenic trail ultra marathon 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. It offers a challenging yet beautiful course through ancient woodlands and picturesque villages, with 80% trail and 20% road terrain.
The event includes five well-stocked aid stations, full medical support, and a marked route. With a 9-hour cut-off, it suits first-time ultra runners and those aiming for a fast early-season race. Spectators can enjoy food and drink vendors at the start/finish area. Visit the organization's website for the most recent information.