Chiltern 50 Ultra Challenge
Henley-on-Thames, United Kingdom • 26 Sep 2026
Chiltern 50 Ultra Challenge : event details
The Chiltern 50 takes place on Saturday 26 September 2026 with Henley Showground as the basecamp and the stated start and finish location. The event uses looped routes from Henley and offers the following distances with listed elevation gains:
- 50 km - 920 m elevation
- 25 km - 500 m elevation
- 10 km - ~235 m elevation
The Henley basecamp includes on-site camping and parking, a Saturday evening meal and bar, and a range of camping packages with hot showers.
On-course support, categories and finish items
The route is fully signed and uses pink arrows and night glow-sticks, with GPS route maps and mobile app tracking available. Rest stops are placed roughly every 12.5 km with major stops near 25 km and 50 km; these covered stops include seating, toilets, medical areas, changing rooms, baggage pickup, and catering. Event systems scan participants at rest stops to log progress.
Several participation options are offered: walk, jog, or run formats; a ULTRA MARCH® category (100 km in under 24 hours or 50 km in under 12 hours); a Trailblazerz® category for faster competitive runners; and a Solo Challengers start option. Additional services include medical, podiatry and massage teams, shuttle buses and transfers, and a finisher package that includes a medal, finisher’s t-shirt, a glass of fizz and a post-finish meal. Registration for 2026 is open. Visit the organization's website for the most recent information.