Chiltern Ridge Classic 50k
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About the race
Chiltern Ridge Classic 50K is Runaway Racing’s iconic ultra through the Chiltern Hills. The next edition, 18 April 2026, runs from Berkhamsted Castle to Hampden Meadow, Wendover, covering roughly 51 km with about 996 m of ascent. Runners traverse the Ridgeway National Trail, with an undulating first section through Ashridge Estate and views from Ivinghoe Beacon, Coombe Hill, and Whiteleaf Hill.
The route is fully marked with orange arrows, marshals at road crossings, and three full aid checkpoints, plus satellite water points in hot weather. Coach transfers, finisher medals, and a TRA-licensed UTMB World Series Index race round out the event. Visit the organization's website for the most recent information.