41 days, 7 hours, 39 minutes.
Thats the new fastest known time (FKT) along the 2,190-mile Appalachian Trail after the 28-year-old Belgian dentist and ultrarunner Karel Sabbe topped out on Katahdin to finish the thru-hike on Tuesday.
The new record is the latest in a rapid arms race that the AT has been host to in recent years, with numerous runners upping the ante and besting each other’s times on the Georgia-to-Maine trail. Until Tuesday, the record belonged to Joe McConaughy who set his FKT last year—Sabbe broke McConaughy’s record by more than 4 days. For his hike, however, Sabbe utilized a support team to provide him with food and other aid, lightening his backpack. McConaughy completed his hike unsupported.
“Nobody had averaged more than 50 miles on the Appalachian Trail. More than proud, I feel privileged for having lived these incredible adventures. It was a blast from start to finish!” Sabbe wrote on Instagram.
A post shared by Karel Sabbe (@karelsabbe) on
In 2016, Sabbe also broke the speed record on the Pacific Crest Trail (breaking the FKT of none other than Joe McConaughy), a title he still holds, making him the first to hold both records simultaneously, according to him. Not a professional runner, Sabbe burst onto the ultrarunning scene with his PCT record two years ago and spends most of his time as a dentist in Ghent, Belgium.
During his record-setting run, Sabbe’s mornings started shortly after 3 a.m., seeing him push most days for around 53 miles. His final day on the trail, he ran 100 miles for 32 hours up the steep sides of Mount Katahdin to capture the record. Sabbe shared his final steps on Facebook:

Ryan Wichelns
Ryan is goEast's editor, a native of the Adirondacks, an ice climber, backcountry skier, and expedition climber with an affinity for obscure objectives in Alaska. He is also a freelance journalist for Backpacker, Outside, and others.
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