Appalachian Trail self-supported FKT
Completed the southbound route in 45 days, 8 hours, and 37 minutes.
Source-checked athlete record · Updated Aug 18, 2026
Jeff Garmire
Southbound Appalachian Trail self-supported record holder
Jeff Garmire holds the southbound Appalachian Trail self-supported FKT and combines long-trail projects with 48-hour and 250-mile racing.
United States
The record so far
Jeff Garmire is an American long-distance hiker and ultrarunner whose work links route-based fastest known times with organized multi-day races. In 2025 he completed the Appalachian Trail southbound in 45 days, 8 hours, and 37 minutes, the current men’s self-supported FKT listed for the route.
His earlier projects include a self-supported calendar-year Triple Crown in 2016, the supported Great Western Loop in 2018, and historical FKTs on routes including the Arizona Trail, Long Trail, Colorado Trail, John Muir Trail, and Wonderland Trail.
Garmire’s race results add a different measure of endurance. He won the 2023 Jackpot 48-Hour race outright with 200.9438 miles and has five top-ten overall finishes at Cocodona, including 10th overall in both 2025 and 2026.
Defining performances
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Self-supported calendar-year Triple Crown
Completed the Appalachian, Pacific Crest, and Continental Divide trails in 252 days and 12 hours.
Great Western Loop completion
Completed the supported long-distance loop in 208 days and 15 hours.
Jackpot 48-Hour champion
Won outright with 200.9438 miles, exceeding 200 miles within the fixed-time race.
Grand to Grand Ultra runner-up
Placed second overall in the six-stage desert race in 42:02:15.
Performance history
| Date | Event | Performance | Result | Source |
|---|---|---|---|---|
| Cocodona250-mile trail | 69:05:17 | 10th overall · 7th man | View ↗ | |
| Appalachian TrailSelf-supported trail project | 45d 08:37:00 | Men’s self-supported FKT | View ↗ | |
| Cocodona250-mile trail | 77:37:32 | 10th overall · 9th man | View ↗ | |
| Pulse Endurance Runs12-hour fixed-time | 76.96 miles | 1st overall | View ↗ | |
| Grand to Grand UltraSix-stage desert race | 42:02:15 | 2nd overall | View ↗ | |
| Cocodona250-mile trail | 68:51:13 | 6th overall | View ↗ | |
| Jackpot Ultra Running Festival48-hour fixed-time | 200.9438 miles | 1st overall | View ↗ | |
| John Muir TrailUnsupported trail project | 3d 00:47:56 | Historical unsupported FKT | View ↗ |
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