Ultra Trail UK

Self-navigated running, UK

Barkley Marathons

Written by Catriona Adams. Published 8 September 2026

Five off-trail loops, no GPS, and the only proof of passing a checkpoint is a page torn from a book hidden in the Tennessee woods. Roughly 100 miles and 25,000-27,000ft of climbing inside a 60-hour limit — since 1986, only 20 people have ever finished it.

Key points

  • Five 20-mile loops (closer to 25 miles each in practice), roughly 100 miles and 25,000-27,000ft of climbing, all off-trail — 60-hour limit.
  • No GPS: runners navigate by map and compass alone, proving each loop by tearing a numbered page from books hidden on the course.
  • Inspired by a real prison escape: in 1977, James Earl Ray fled Brushy Mountain State Penitentiary, a few miles from the course, and covered only 8 miles in over two days before recapture — founder Gary Cantrell figured he could cover 100 in that time.
  • Created by Gary "Lazarus Lake" Cantrell and Karl "Raw Dog" Henn in 1986. As of the end of 2026, the full race has been finished within 60 hours only 26 times, by 20 different runners — Jasmin Paris became the first woman in 2024.

The prison escape that inspired the race

In 1977, James Earl Ray — who assassinated Martin Luther King Jr. — escaped Brushy Mountain State Penitentiary, a few miles from what's now the Barkley course. He covered only 8 miles in just over two days before being recaptured. Gary Cantrell, a local endurance runner, reasoned he could cover 100 miles in that time — the idea that became the Barkley Marathons in 1986.

The numbers

Distance5 loops of a nominal 20 miles each (closer to ~25 miles in practice), ~100 miles total
Elevation gain~25,000-27,000ft cumulative
Time limit60 hours (the "fun run" — 3 loops, ~60 miles — has a 40-hour cutoff)
LocationFrozen Head State Park, Morgan County, Tennessee
First run1986, created by Gary "Lazarus Lake" Cantrell and Karl "Raw Dog" Henn
NavigationMap and compass only — no GPS. A numbered page torn from each of 9-15 hidden books proves a runner passed that checkpoint

The entry ritual

There's no standard sign-up page. Getting a place involves a deliberately strange, semi-secret process built by the race's founder — part filter, part tradition:

StepWhat it involves
ApplicationSend an email at the correct time, pay a $1.60 fee, complete a form of deliberately irrelevant questions, and write an essay on "Why I Should be Allowed to Run in the Barkley."
First-timersBring a licence plate from their home state or country.
Returning runnersBring a specified clothing item; a runner who has finished before and returns owes a pack of Camel cigarettes.
On the courseFind the hidden books and tear out the page matching your race number — the only proof of passing a checkpoint.

Current records

CategoryHolderTimeDate
Course record (men)Brett Maune52h 03m 08s2012
Course record (women) — first woman to finishJasmin Paris59h 58m 21s2024

Jasmin Paris' 2024 finish made her the first woman ever to complete the full five-loop Barkley within the 60-hour limit — the same runner who holds the supported women's record on the Ramsay Round, on this site.

The closest thing to a Round, taken further

No marked course and no GPS put the Barkley on the same axis as a British Round — but it goes further still. A Round runner can carry a GPS watch and still call it a fair attempt; the Barkley's book-page system exists specifically to remove that option. See our guide to self-navigation for fell and mountain running for the skill both events actually test.

FAQ

Frequently asked questions

Five loops, nominally 20 miles each but closer to 25 in practice, for roughly 100 miles total and 25,000-27,000ft of climbing — entirely off-trail, with a 60-hour limit.

Map and compass only. Runners must find between 9 and 15 books hidden along the course and tear out the page matching their race number — the only accepted proof of having passed that point.

As of the end of the 2026 event, the full five-loop race has been completed within the 60-hour limit only 26 times, by 20 different runners, since it began in 1986.

Yes — Jasmin Paris became the first woman ever to finish it, in 2024, in 59h 58m 21s. She also holds a supported Ramsay Round record on this site.

There's no public entry list or fee structure in the normal sense: applicants send an email at the correct time, pay a $1.60 application fee, and complete a form and essay. First-timers bring a licence plate from their home state or country as part of the ritual.

Founder Gary Cantrell was inspired by a real event: in 1977, James Earl Ray escaped Brushy Mountain State Penitentiary, near the course, and made it only 8 miles in over two days before being recaptured. Cantrell figured he could cover 100 miles in that time — the seed of the race.

A bugle plays 'Taps' at camp each time a runner drops or is timed out — a tradition as well known among followers of the race as the finish itself, since most entrants never complete even a single loop within the required pace.

Sources for this page

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