Chiltern Hills 100K
A 100K ultra marathon along the best and most loved trails within the Chiltern Hills
| Date | Saturday 9th May, 2026 |
|---|---|
| Distance | Ultra |
| Location | Chesham Guides HQ |
| Town/City | Chesham, Bucks |
| Area | Buckinghamshire, Bedfordshire & Hertfordshire |
| Start postcode | HP5 1HX |
| Start time | 7:00am |
| Website | Visit website |
| Run For Charity |  Start Fundraising On GoFundMe |
Our route follows an awesome anticlockwise loop passing many of the Chilterns best landmarks - including the Ashridge Estate, Coombe Hill, Whiteleaf, Bledlow Ridge, Great Hampden and much more.
