Breaking the Self Supported Appalachian Trail FKT with Jeff Garmire

Jeff Garmire is a legend in the world of fastest known times with more than 20 FKTs on routes including the Appalachian Trail, Colorado Trail, Arizona Trail, and John Muir Trail. On September 21, 2025, he reached Mount Springer after setting a self supported FKT on the Appalachian Trail, completing the route in 45 days, 8 hours, and 37 minutes.