Cousin Jack

Saint Just, United Kingdom • 7 Mar 2026

Cousin Jack is a challenging trail running event held in Cornwall, featuring two race options: the 18-mile Classic Jack and the 35-mile Ultra Jack. The Classic Jack is a point-to-point race from St Just to St Ives, traversing demanding terrain including muddy fields, rocky headlands, steep paths, and bogs. The Ultra Jack doubles the distance and elevation, starting and finishing in St Ives with a route out to Cape Cornwall and back, covering over 7,000 feet of ascent. Both races offer a rugged coastal experience with stunning views and tough conditions, making them a true test for trail runners seeking adventure on Cornwall’s coast path. Visit the organization's website for the most recent information.

Race information

63 km
Ultra Jack
10 km
Classic Jack
Visit the organization's website for the most recent information.
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