Fastest Known Times the athlete has set; possibly historical. Check out each route to see its current FKT.
|John Muir Trail via Whitney Portal (CA)||north to south||Unsupported||3d 1h 0m 34s|
|Arizona Trail (AZ)||Standard route||Supported||13d 3h 21m 0s|
|Long Trail (VT)||Standard route||Self-supported||4d 23h 54m 0s|
|Wicklow Round (Ireland)||Standard route||Supported||17h 9m 44s|
|Appalachian Trail (AT)||Northbound||Self-supported||45d 12h 15m 0s|
|Pacific Crest Trail (CA, OR, WA)||South to North||Supported||53d 6h 37m 0s|