Chiltern Hills 100K
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Chiltern Hills 100K
The Chiltern Hills 100K is a trail ultra covering 100K with about 1800 m of ascent on a fully marked anticlockwise loop through the Chiltern Hills. The route passes notable landmarks including the Ashridge Estate, Ivinghoe Beacon to Aldbury on The Ridgeway, Coombe Hill, Whiteleaf Hill, Bledlow Ridge and Great Hampden. The event base is Chesham Guides Headquarters in Lowndes Park, Chesham, Buckinghamshire HP5 1HX.
The race has a 19 hour overall time limit, GPS tracking with live results, and is limited to 250 runners. It is a UTMB World Series Index race in the 100K category and is licensed by the Trail Running Association and held under UKA rules. Minimum age to enter is 20 years.
There are six checkpoints at 14 km, 28 km, 41.4 km, 57.8 km, 75.3 km and 88 km. Checkpoints provide water, Coke, an electrolyte drink from Precision Fuel and Hydration, gels and chews, sandwiches, flapjacks, fruit, crisps and sweets. Hot drinks and water are listed as available at 44k, 60k and 75k. One on-route drop bag is transported to the 41.4 km checkpoint and returned to the finish; a separate finish bag is kept for collection at the finish.
All runners must carry mandatory kit for the entire race, including a mobile phone with an emergency number saved, route GPX on watch or phone, a refillable hydration system of at least 0.5 L, a waterproof or windproof jacket, a spare warm layer and leg cover, a head torch with spare battery, a reusable cup, and basic first aid supplies. Two items of mandatory kit will be checked at registration and time penalties apply for missing gear. The route is fully marked but runners are also required to carry GPS navigation and a printed map provided at registration. Visit the organization's website for the most recent information.
