John Kelly set to run ‘Hartley Slam’ in U.K.

The most recent Barkley Marathons finisher will be running the 431K Pennine Way and 297K Grand Round challenge within a month of each other

WATCH: Jeanelle Hazlett sets women’s FKT on B.C.’s Mount Brunswick

Shortly after her first 50-mile win, B.C. trail runner Jeanelle Hazlett decided to try for a women’s FKT on a shorter, steeper route

Magda Boulet sets a new kind of FKT on the Tahoe Rim Trail

Lessons from Magda Boulet’s Tahoe Rim Trail FKT attempt