Ultra Running and Setting FKTs with Anton Krupicka Shelby Stanger|January 13, 2026 Anton Krupicka is one of the most iconic ultrarunners and long-distance trail athletes in the U.S. Known for his minimalist approach—shirtless miles, long hair, and a bushy beard—he became a defining figure in the sport. Over nearly three decades, Anton has won the Leadville 100 twice and earned podium finishes at ultramarathons around the world. Beyond racing, he’s set 28 fastest known time (FKT) records on notable routes, solidifying his reputation in endurance running.
The Growth of Women’s Fastest Known Times Amanda Loudin|February 22, 2019 When it comes to FKTs, women ultrarunners have announced they are here to stay.
Karel Sabbe Sets New Fastest Known Time on the Appalachian Trail Jonathan Olivier|August 29, 2018 Moving at an astonishing pace, the Belgian ultrarunner smashed the previous Fastest Known Time on the AT by more than four days.
Fastest Known Mom Shawnté Salabert|November 14, 2017 Record-setting long-distance hiker Jennifer Pharr Davis slows down to help bring families outdoors—including her own.
How a Runner Named Stringbean Broke Every Appalachian Trail Speed Record Jonathan Olivier|September 14, 2017 He packed light, pushed through pain, followed Fastest Known Time protocol to a T, and even stopped to enjoy the view. Ultrarunner Joe “...
In Pursuit of the Fastest Known Time Emma Murray|July 17, 2017 The record-setting rush in Franconia Notch State Park
