The Hardmoors 15

Hardmoors 15 is an annual winter trail ultramarathon in North Yorkshire, starting and finishing at Fylingdales Village Hall in Robin Hood’s Bay. The circular route covers about 17.5–18 miles along the Cinder Track and the Cleveland Way, with around 1,700 feet (518 m) of ascent. Runners pass checkpoints at Ravenscar and Hayburn Wyke before finishing back at Fylingdales.

The event holds an ARC permit (26/0004) and features an 8‑hour time limit with a 150‑participant cap. A new route was introduced for 2025. Participants must carry mandatory kit; dogs are not allowed. Visit the organization's website for the most recent information.