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.

Race information

50 km
1219 m+
Visit the organization's website for the most recent information.
Trail runs nearby

Saturn Running's Midweek Chasing Numbers event takes place at Wraysbury Skiff & Punting Club in Egham, along a scenic stretch of the River Thames. This flexible 7-hour time challenge allows participants to run as many laps of a 4.37-mile (7km) course as they wish, with distances ranging from a minim..

The Magna Carta Summer race, organized by Hermes Running, takes place in scenic Runnymede, Surrey, near the historic site where the Magna Carta was signed in 1215. The event offers three distances: a 10K, half marathon, and marathon, all starting by the River Thames at the Wraysbury Skiff & Punting..

Stately Trails: Forcett Park is a scenic trail running event held at Forcett Hall, North Yorkshire, featuring 5km and 10km race options on a two-lap course. The route offers runners exclusive access to historic parkland, passing ancient Iron Age fortifications, a musket training wall from the civil..

The Hampshire Hoppit is a scenic trail running event held in the picturesque countryside of Hampshire, centered around the village of Kingsclere. It offers three race distances: a marathon, half marathon, and 10k, all featuring clearly marked, single-lap off-road courses with friendly marshals. The..

The Guildford Urban will take place in Guildford on Sunday 15 June 2025.

The Oxford Greenbelt 10km is a scenic running event held in Oxfordshire, hosted at Brookes Sport, Oxford (OX2 9AT), home to the Harcourt Hill Parkrun. The 10k course is predominantly off-road and undulating, featuring a section of the Oxford Greenbelt Way, offering picturesque views of the countrysi..