Runaway Adventures - North Chilterns 50K
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North Chilterns 50K : Putteridge Bury, Luton
The North Chilterns 50K is a trail race held on 21 November 2026 from Putteridge Bury in Luton. The course is approximately 50.3 km with about 725 m of ascent and follows a natural loop through the North Chilterns countryside.
Runners follow the Chiltern Way towards Lilley, then continue to Warden and Barton Hills where the first checkpoint is located at 14.5 km. The route then moves across flatter ground to Pirton with a checkpoint at 23.6 km. After Pirton, the course climbs Pegsdon Hill, then reaches Offley Village Hall at 35 km for a refuel and again at 43.4 km before returning to the event base at Putteridge Bury. The terrain is varied trail with sections of ridgeline running and several viewpoints.
The route is fully marked with orange arrows and ribbons and will have marshals at key points. All runners must carry a digital copy of the route on a watch or phone as a backup. Navigation support is provided by course signage and marshals.
The event is licensed by the Trail Running Association and is an UTMB World Series index race. Maximum field size is 250 runners, minimum age is 20, dogs are not permitted, and the overall time limit is nine hours. The event base at Putteridge Bury Country House offers indoor facilities, toilets and coffee. Aid stations with toilets provide drinks, electrolyte drink, gels, chews, snacks and fresh fruit. Entry includes chip timing, medical support, bag drop, parking and a finisher medal.
Required kit must be carried throughout the race and includes a mobile phone, route map on watch or phone, waterproof jacket, headtorch, refillable hydration (0.5 L min), cash or card, warm hat and gloves and a foil blanket. Visit the organization's website for the most recent information.
