An ultramarathon runner just made history in one of the most grueling endurance events on the planet — and she did it on less sleep than most people get in a single nap.
Rachel Entrekin has become the first woman to win the Cocodona 250 outright, beating every competitor in the field — men included — to claim the overall title in a stunning record-breaking performance.
The achievement is even more jaw-dropping when you consider the conditions: 253 miles of Arizona desert, nearly 39,000 feet of elevation gain, and a total of just 19 minutes of sleep across the entire race.
Here’s how a 34-year-old doctor who once thought she wasn’t good enough to play high school sports rewrote the record books.
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A Record That Wasn’t Supposed to Be Breakable
The Cocodona 250 is not a race for the faint of heart.
Run across a brutal 253-mile course through Arizona — despite the “250” in its name — the event demands athletes conquer 38,791 feet of elevation gain, reaching heights of 9,241 feet while battling punishing desert conditions throughout.
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The previous overall record stood at 58 hours, 47 minutes, and 18 seconds. Entrekin didn’t just beat it — she shattered it by nearly three hours, crossing the finish line in 56 hours, 9 minutes, and 48 seconds.
Her own previous best, set just last year, was 63 hours and 50 minutes. The leap in performance is extraordinary by any measure.
Nineteen Minutes of Sleep Across 250-Plus Miles
Most athletes competing at this level rely on strategic rest periods to keep their bodies and minds functioning. Entrekin’s approach was a little different.
I slept five minutes, then seven minutes, then seven minutes. My goal was to only have dirt naps.
Nineteen minutes total. That’s all the rest she allowed herself across the entire race.
She wasn’t all business out there, though. According to Canadian Trail Running, Entrekin also took time to stop and pet dogs along the route — which, honestly, says everything about the kind of competitor she is.
A support crew of six — including her own parents — helped keep her moving through the darkness and the desert heat. Their presence clearly meant everything when the miles got hard.
If you want something simple that actually works, this is one of the most effective tools I’ve used to build strength, conditioning, and endurance without needing a full gym setup.
- Full-body training with one weight using swings, squats, and presses
- Solid cast iron build that feels stable and lasts for years
- Comfortable grip that makes high-rep workouts easier to handle
Tears at the Finish Line
When Entrekin finally emerged from the single track and the finish line came into view, the emotion hit her instantly.
I think I basically wept from the second I got off the single track until I crossed the finish line.
It’s hard to imagine anyone watching that moment and staying dry-eyed themselves.
She had already won the women’s category twice before, but this was something altogether different — a historic outright victory that puts her name at the very top of Cocodona’s record books.
The Doctor Who Didn’t Think She Was Athletic Enough
Perhaps the most compelling part of Entrekin’s story isn’t the record — it’s the road that led her there.
Growing up, she avoided team sports entirely, convinced she simply didn’t have what it took to compete. Running didn’t enter her life in any serious way until 2012, when she picked it up while studying exercise science at college.
She earned her doctorate in 2016. Then, quietly and methodically, she built herself into one of the most formidable ultramarathon runners in the world.
If you want something simple that actually works, this is one of the most effective tools I’ve used to build strength, conditioning, and endurance without needing a full gym setup.
- Full-body training with one weight using swings, squats, and presses
- Solid cast iron build that feels stable and lasts for years
- Comfortable grip that makes high-rep workouts easier to handle
When asked why she pushes her body through such extreme physical and mental stress, her answer was refreshingly straightforward.
Why put my body and mind through such stressful exercise you may ask? Because it’s fun and you get to explore so much stuff while you’re in these races as the biggest hook for me is I see lots of the world in a short time frame.
Fun. She called it fun. After 253 miles and 19 minutes of sleep.
A Race Shadowed by Tragedy
Entrekin’s triumph did not unfold without heartbreak surrounding it.
On Tuesday, a fellow competitor died following a medical emergency on the course. The loss cast a deep shadow over the event, and race organizers faced the difficult decision of whether to continue.
They chose to press on — in honor of the runner who was lost. Organizers asked every athlete and support crew member to carry that runner’s memory with them on the trail.
It’s a reminder that these races exist at the very edge of human capability — and that the community built around them carries both the triumphs and the grief together.
If you want something simple that actually works, this is one of the most effective tools I’ve used to build strength, conditioning, and endurance without needing a full gym setup.
- Full-body training with one weight using swings, squats, and presses
- Solid cast iron build that feels stable and lasts for years
- Comfortable grip that makes high-rep workouts easier to handle
Entrekin’s record will stand as a landmark moment in ultramarathon history. But for the Cocodona 250 community, this year’s race will be remembered for far more than the numbers on a clock.
