Chiltern Hills 100K
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Chiltern Hills 100K
The Chiltern Hills 100K is a 100 kilometre trail ultramarathon held in and around Chesham, Buckinghamshire. The route is an anticlockwise loop that starts and finishes at the Chesham Guides Headquarters in Lowndes Park and covers about 1800 m of ascent. Key landmarks on the course include the Ashridge Estate, sections of The Ridgeway, Coombe Hill, Whiteleaf Hill, Bledlow Ridge and areas around Great Hampden and Great Missenden.
The course is fully marked and requires runners to carry a GPX route on a watch or phone; a printed map is provided at registration. Open GPS tracking and chip timing are provided during the race. Six checkpoints are located at approximately 14 km, 28 km, 41.4 km, 57.8 km, 75.3 km and 88 km, and some checkpoints include toilets. Aid stations offer water, Coke, Precision Fuel & Hydration products, snacks, pre-made sandwiches, flapjacks and fresh fruit, with hot drinks available at specific points.
The event is licensed by the Trail Running Association and held under UKA rules. Maximum field size is 250 runners and the minimum age is 20. The advertised time limit for the course is 19 hours. Entry fees are listed at £142 or £140 for UKA affiliated runners and entries are open. Required kit includes basic navigation and emergency items plus sufficient hydration and nutrition for the run. Visit the organization's website for the most recent information.
