How this runner did a marathon and Tour de France stage every day for a month

Kilian Jornet's challenge took him 31 days. Nick Danielson/NNormal

Imagine this: every day, you wake up in a motorhome in an unfamiliar part of the country in the early hours of the morning, and after cramming down as much oatmeal as can muster, you start on the day’s adventure – cycling the equivalent of a grueling Tour de France stage, and then, armed with crampons, an ice axe and a rope, running and climbing the equivalent of a marathon up one of the United States’ highest mountains.

After spending the day (and night) scrambling up ice encrusted slabs, dirt tracks, glaciated terrain and exposed rock, and battling exhaustion after being on the move for 18 hours, you allow yourself no more than five hours of sleep, because tomorrow, you’re doing it all over again. And again. And aga