Runaway Adventures - North Chilterns 50K

North Chilterns 50K

The North Chilterns 50K is a trail ultramarathon held from Putteridge Bury Country House near Luton, Bedfordshire. The race covers 50 km with approximately 798 m of ascent on fully marked trails and carries a UTMB World Series index. The field is limited to 250 runners and the event is licensed by the Trail Running Association.

The route follows sections of the Chiltern Way to Lilley, then out to Warden Hill and Barton Hills, across the Pegsdon Hills and towards Offley. After the first checkpoint there is a notable climb followed by undulating terrain to the second checkpoint. The final 12 km contains three small hills before returning to the event base. Navigation is provided by orange arrow markers and ribbons, with marshals at key points; runners must also carry a digital copy of the route on a watch or phone.

There are three staffed checkpoints: CP1 Arnold Rec Barton at 14.3 km, CP2 The View at 28 km, and CP3 Offley Village Hall at 37.2 km; each has toilets. Aid station provisions include water, cola, pre-mixed electrolyte drink, gels, chews, crisps, sweets and fresh fruit. Required kit for the entire event includes a mobile phone, route map on device, waterproof jacket, headtorch, refillable hydration of at least 0.5 L, warm hat and gloves, foil blanket and payment method. Entry requires a minimum age of 20 years. Visit the organization's website for the most recent information.