Fastest Known Podcast

Coming to you every Friday: interviews with FKT-setters and other athletes in the world of Fastest Known Times.


Subscribe to the Fastest Known Podcast on iTunes, SoundCloud, Google Play, Stitcher, or Spotify.

Subscribe in iTunes Listen on SoundCloud Listen on Google Play Listen on Stitcher Listen on Spotify


Katie is from Maine; Germain from France - they both were Top Ten at UTMB, then went to New Hampshire for their passion project, the Hut to Hut Traverse - how does that all work?

They ran the whole Traverse together, with Katie 2 hours ahead of the previous Female FKT.

"I was on 'Croo' for 4 summers, and told Grangier how at the end of every summer we saw how fast we could go between the 8 Huts." - Katie

This August, the pair went sub-4 days on the WRHR, a terrific 100 mile traverse of the Wind River Range in Wyoming.

"I was into backpacking and climbing, then discovered trail running and loved the lightweight freedom ... I'm fascinated by how far the human body can go, and how much you can see and experience."

The competition is intense - how do you start a new running shoe company, and be successful?

"My friend gave me a prototype, and I said, 'forget it, don't even try, you'll never succeed against the big shoe company's. But then I tried them on."

"We typically don't talk about the product, we just ask people to try them, and that's what comes back: 'Running on clouds.'"

This is a fun discussion with the co-owner of an international running shoe company - get the inside scoop on how this all works.

Luke has FKTs on the Idaho 12ers (9 summits over 12,000'), and the Utah 13ers (17 over 13,000').  A few weeks ago he did the Wasatch Ultimate Ridge Linkup, a gnarly but entirely logical Jared Campbell route ringing Little Cottonwood Canyon, starting directly above Salt Lake City.  

"The WURL is a fascinating route; it took several years for me to feel ready to even try it. I wanted to be able to move not only quickly through this terrain, but safely at the same time."

Luke is very conscious of the “Kilian Effect”:

The Cascade Trifecta, then the Rainier Infinity Loop - Solo and Self-Supported - one week apart!  The Infinity Loop alone is 130 miles with 47,000' of elevation gain. How did he do it?

"I slept for 90 minutes the first night, to optimize my summit to start at first light. Then 21 minutes the second night - because I was too tired to move. It delivers full value".

"There's something that draws out the authenticity in people - there's a shared experience."

This is Sunny Stroeer's second appearance on the Fastest Known Podcast. As a person who not only attempts but thrives on self-supported, big mountain FKTs, Sunny offers honest perspective on what motivates women to try fastest known times. Whether it's the "confidence gap" or "low hanging fruit" FKTs, Sunny talks about what's changed in the landscape of women's FKTs since we spoke to her almost one year ago. It turns out a lot has changed.

Jennifer famously set the Overall record on the Appalachian Trail earning her National Geographic Adventurer of the Year, but is also the author of 7 books, a public speaker, runs a guide service, and is happily married with two children. 

So how did she go 11 DAYS faster than her previous effort?

"I resolved to not set a limit on what I could do - no matter what happened, I would leave the Trail with that question answered."

"I was on the Trail I loved, with the person I loved, doing what I loved."

No action yet on the JMT, PCT, or AT ... are the existing times just too hard? But Peter is processing 5-8 submissions per day from all over the world! And, stop worrying about "Supported" vs "Unsupported" -

"If you want to go solo, go solo. If you want to go as a team, do that. But don't say one is better than the other."

Marcy and her husband John travel the US, living in a camper trailer, and knocking out FKT's everywhere they go.

"We've been doing this for 10 years. It's a great way to see the country!"

She's also a Hardrock finisher, and done a lap or two of Barkley.  But her favorite race?

"Big's Backyard Ultra. I'm not real fast, so the 'Last Person Standing' style suits me."

Josh is from Michigan - sounds mundane?  Think again!  You wouldn't believe what this guy is doing ...

Fastest person to visit all 50 states - and run a 5k in each: 6d, 6h, 58mins!

Most countries visited in one day - and run in each country (read the article below): 13!

Most 14ers climbed in one day: 10