Centurion Hundred Hills 50km

MAR
20
2027
A 50 km trail ultra through the Chilterns with 4000 ft of climb, five aid stations, full medical support and a nine hour cut off at Stonor Park on 20 March 2027.
Sat 20 Mar 2027
ITRA 2 50 kilometers

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Hundred Hills 50km

The Hundred Hills 50km is a trail ultra through the Chiltern countryside, held at Stonor Park near Henley-On-Thames on 20 March 2027. The race covers 50 km (31 mi) over two different 25 km loops and includes approximately 4000 ft (1200 m) of climb. The course surface is roughly 80% trail and 20% road and is marked for the full route.

Runners must complete the course within a nine hour time limit; additional cut offs apply at aid stations. Five well stocked aid stations are placed on course, offering a range of drinks, hot food at the finish and both sweet and savoury snacks including vegan and gluten free options. Full medical support is provided with a static first aid team at the finish and at least one roving medical team on course.

Mandatory kit must be carried at all times and checks will be made during the race and at the finish. Required items include a fully charged mobile phone, water carriage for at least 1 litre, survival blanket, waterproof jacket with sealed seams, whistle and a long sleeved dry top for emergency use. A one hour time penalty applies for any missing mandatory item.

The event is permitted under UK Athletics through the TRA and limits starters to 600. All finishers receive a medal and prizes are awarded to the first three male and female finishers plus winners in listed age categories. Visit the organization's website for the most recent information.

50 km
Hundred Hills 50km

Events nearby

Windsor Trail Run Half Marathon and 10K on 30 August 2026 in Alexandra Gardens featuring flat trail routes, chip timing, race photos and post-race goodies.
Scenic mixed terrain running at Remenham Farm beside the Thames with a half marathon, 10K and junior race, chip timed results and themed medals.
Seven hour Time Challenge along the River Thames in Staines offering lap based distances from 3km to ultra, with medals, pins, aid stations and goody bags.
A single loop 50 mile race through the Chiltern Hills with 5600 ft of climb, five aid stations, full medical cover and a 13 hour cut off on 19 Sep 2026.
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