In September 2024, Michelino Sunseri cut a signed switchback during an attempt to claim the fastest known time (FKT) for summiting Grand Teton Peak. He made record time, running the 13.2-mile ...

American ultrarunner Tyler Andrews will return to Nepal this September to chase the record for the fastest ascent of Mount Everest without supplemental oxygen. Andrews, 35, is heading back to the peak ...

Tyler Andrews of the U.S. will start his attempt to make the fastest-ever no-oxygen ascent of Everest tomorrow evening. Andrews will leave Base Camp at 7 pm Nepal time on Tuesday. He will climb ...

Apparently, it’s Fastest Known Time (FKT) season in the French Alps. Just days after Élise Poncet set the women’s ski FKT on Mont Blanc, Benjamin Vedrines has set a new men’s ski FKT on the peak.

After linking all 56 of Colorado's 14,000-foot peaks in 16 days, Kilian Jornet is keeping the same incredible pace in California. This includes a new FKT on the so-called Norman's 13 -- the 13 ...

The regional editors of Fastest Known Time, the official arbiter of FKTs, have spoken. The consensus: record-setters from around the globe made selecting the best FKTs of year harder than ever. In ...