Chiltern Hills 100K Ultra
The Chiltern Hills 100K Ultra Marathon on 9 May 2026 is along the best and most loved trails within the Chiltern Hills AONB.
The route starts and finishes in Chesham with runners completing an anticlockwise loop passing many landmarks along the way, including Ashridge Esate, Ivinghoe Beacon, Coombe Hill and Bledlow Ridge.
This race will be fully marked with orange arrows and ribbons. All runners must also carry GPS navigation, either on their watch or phone, plus a printed map provided at registration.
Organiser
Distances/Events
100K Ultra
Source: https://www.runningcalendar.co.uk/event/chiltern-hills-100k-ultra/
Event Website: https://runawayracing.com/races/chiltern-hills-100k/
Coordinates: 51.7064755, -0.6147194