Chiltern Hills 100K Ultra

Chiltern Hills 100K Ultra

Saturday, 9 May 2026

Chesham, Buckinghamshire, UK

Follow event Run/Walk Off Road/Trail

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

Runaway Racing UK

Distances/Events

100K Ultra

Location map

The event is based from Chesham Guides Headquarters, Lowndes Park.

Please note: the map location may be approximate. Refer to the event website for start lines and course maps.

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This listing was last manually checked on 20 October 2025.

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